Campanula glomerata | clustered bellflower Herbaceous Perennial/RHS

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href="/plants/plantsmanship"><span>Plantsmanship</span></a></li><li><a href="/plants/shrubs"><span>Shrubs</span></a></li><li><a href="/plants/trees"><span>Trees</span></a></li><li><a href="/plants/vegetables"><span>Veg</span></a></li><li><a href="/plants/types"><span>Types</span></a></li></ul></div></div></div></app-bread-crumbs><app-global-banner class="ng-tns-c103-0 ng-star-inserted"><section class="section section--flush ng-tns-c103-0 ng-trigger ng-trigger-slideUpDown ng-star-inserted" style=""><div id="rhs-global-banner" class="ng-tns-c103-0"></div></section></app-global-banner></app-nav><router-outlet _ngcontent-sc126=""></router-outlet><app-plant-details-page _nghost-sc76="" class="ng-star-inserted"><div _ngcontent-sc76="" class="panel panel--alt"><div _ngcontent-sc76="" class="panel__content text-center text-xs u-p-2"><i _ngcontent-sc76="" class="far fa-search"></i> <strong _ngcontent-sc76="">Not the plant you're looking for? <a _ngcontent-sc76="" href="" class="link">Search over 300,000 plants</a></strong><app-plants-quick-search-modal _ngcontent-sc76="" _nghost-sc75=""></app-plants-quick-search-modal></div></div><lib-plant-details-full _ngcontent-sc76="" _nghost-sc34="" class="ng-star-inserted"><section _ngcontent-sc34="" class="section"><div _ngcontent-sc34="" class="section__container"><div _ngcontent-sc34="" class="l-layout"><div _ngcontent-sc34="" class="l-module"><div _ngcontent-sc34="" class="l-row l-row--space l-row--compact"><div _ngcontent-sc34="" class="l-col-xs-12 l-col-lg-6"><div _ngcontent-sc34="" class="l-module ng-star-inserted"><a _ngcontent-sc34="" data-ga-link-type="text" data-ga-component-name="app-plant-details-full" class="heading-link heading-link--back" href="/plants/search-results">Back to search results</a></div></div><div _ngcontent-sc34="" class="l-col-xs-12 l-col-lg-6"><div _ngcontent-sc34="" class="l-module"><span _ngcontent-sc34="" class="label ng-star-inserted">Herbaceous Perennial</span></div></div></div></div><div _ngcontent-sc34="" class="l-module u-m-t-2 clear-both"><div _ngcontent-sc34="" class="l-row l-row--space"><div _ngcontent-sc34="" class="l-col-lg-6 l-col-lg--push-6"><div _ngcontent-sc34="" class="l-module"><div _ngcontent-sc34="" class="l-module__content u-p-l-1-lg"><h1 _ngcontent-sc34="" class="h1--alt"><span _ngcontent-sc34=""><em>Campanula</em> <em>glomerata</em></span><ul _ngcontent-sc34="" class="list-inline list-unstyled inline-block u-m-l-2 ng-star-inserted"><li _ngcontent-sc34="" class="ng-star-inserted"><span _ngcontent-sc34=""><img _ngcontent-sc34="" src="/assets/styles/images/icons/RHS_Bee_YELLOW-REGISTERED.png" alt="RHS Plants for pollinators" height="41" width="41" class="u-img-zoom-75 u-img-zoom-100-sm"></span><popover-content _ngcontent-sc34="" class="popover-content-outer"><div role="popover" class="bs-popover- popover-content popover sm" style="top:-10000px;left:-10000px;opacity:0;display:block;" aria-hidden="true"><div class="virtual-area"></div><div class="arrow"></div><div class="popover-header" hidden=""></div><div class="popover-body"><span _ngcontent-sc34="" class="text-tight"><h6 _ngcontent-sc34="" class="text-small">RHS Plants for Pollinators plants</h6><p _ngcontent-sc34=""><em _ngcontent-sc34="">This plant will provide nectar and pollen for bees and the many other types of pollinating insects.</em></p><p _ngcontent-sc34="">It is included in an evolving list of plants carefully researched and chosen by RHS experts. Divided into 3 groups these lists, linked below, are maintained by a team of RHS staff and are reviewed annually.</p><ul _ngcontent-sc34=""><li _ngcontent-sc34=""><a _ngcontent-sc34="" href="https://www.rhs.org.uk/science/pdf/conservation-and-biodiversity/wildlife/plants-for-pollinators-garden-plants.pdf" target="_self">Garden Plants</a></li><li _ngcontent-sc34=""><a _ngcontent-sc34="" href="https://www.rhs.org.uk/science/pdf/conservation-and-biodiversity/wildlife/plants-for-pollinators-wildflowers.pdf" target="_self">Wildflowers</a></li><li _ngcontent-sc34=""><a _ngcontent-sc34="" href="https://www.rhs.org.uk/science/pdf/conservation-and-biodiversity/wildlife/plants-for-pollinators-plants-of-the-world.pdf" target="_self">Plants of the World</a></li></ul></span> </div></div></popover-content></li></ul></h1><p _ngcontent-sc34="" class="summary summary--sub">clustered bellflower</p><p _ngcontent-sc34="" class="ng-star-inserted">Vigorous rhizomatous perennial to about 45cm tall, forming an extensive clump of erect stems bearing dark green ovate leaves, and dense terminal racemes of deep violet-blue, or white, bell-shaped flowers all summer</p></div></div><div _ngcontent-sc34="" class="l-module"><div _ngcontent-sc34="" class="l-module__content u-p-l-1-lg"><div _ngcontent-sc34="" class="l-row l-row--space"><div _ngcontent-sc34="" class="l-col-md-6"><div _ngcontent-sc34="" class="l-module text-small ng-star-inserted"><h6 _ngcontent-sc34="" class="text-small u-m-b-0">Other common names</h6><span _ngcontent-sc34="" class="ng-star-inserted">clychlys clwstwr</span></div></div><div _ngcontent-sc34="" class="l-col-md-6"><div _ngcontent-sc34="" class="l-module ng-star-inserted"><div _ngcontent-sc34="" id="THX_TOP_RIGHT" class="THX_TOP_RIGHT"><app-cta-small _ngcontent-sc34="" path=""><div class="band band--tone-action band--inner u-m-b-3 u-p-1 has-promo aside membership-promo rhs-logo clr ng-star-inserted"><div class="u-p-2 text-tight text-left"><div class="has-promo__padding"><p class="ng-star-inserted">Join the RHS <strong>today</strong> and <span>save 25%</span></p></div><a data-ga-link-type="button" data-ga-component-name="app-cta-small" target="_self" class="button button--alt-2 button--secondary button--small button--w-100 ng-star-inserted" href="/join" analyticsdata="Join the RHS <strong>today</strong> and <span>save 25%</span>"><span class="button__text">Join now</span><span class="button__icon button__icon--right"></span></a></div></div></app-cta-small></div></div></div></div></div></div></div><div _ngcontent-sc34="" class="l-col-lg-6 l-col-lg--pull-6"><div _ngcontent-sc34="" class="l-module ng-star-inserted"><app-plants-images-carousel _ngcontent-sc34="" _nghost-sc33=""><div _ngcontent-sc33="" class="carousel carousel--gallery"><div _ngcontent-sc33="" class="carousel-nav carousel-nav--responsive carousel-nav--tint ng-star-inserted"><a _ngcontent-sc33="" class="carousel-nav__prev js-carousel-prev"><span _ngcontent-sc33="" class="carousel-nav__icon"><</span></a><a _ngcontent-sc33="" class="carousel-nav__next js-carousel-next"><span _ngcontent-sc33="" class="carousel-nav__icon">></span></a></div><div _ngcontent-sc33="" class="carousel__items carousel__items--4x3"><img _ngcontent-sc33="" width="0" height="0" alt="" class="hidden" src="https://apps.rhs.org.uk/plantselectorimages/detail/WSY0034339_11017.jpg"><owl-carousel-o _ngcontent-sc33="" _nghost-sc30=""><div _ngcontent-sc30="" class="owl-carousel owl-theme owl-loaded owl-drag"><div _ngcontent-sc30="" class="owl-stage-outer ng-star-inserted"><owl-stage _ngcontent-sc30="" class="ng-tns-c29-2 ng-star-inserted"><div class="ng-tns-c29-2"><div class="owl-stage ng-tns-c29-2" style="width:NaNpx;transform:translate3d(0px,0px,0px);transition:0s;"><div class="owl-item ng-tns-c29-2 ng-trigger ng-trigger-autoHeight cloned ng-star-inserted" style="margin-right:16px;"></div><div class="owl-item ng-tns-c29-2 ng-trigger ng-trigger-autoHeight cloned ng-star-inserted" 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cover-image--4x3 cover-image--no-placeholder"><div _ngcontent-sc33="" class="image-overlay image-overlay--tint image-overlay--large image-overlay--bottom"><span _ngcontent-sc33="" class="text-small">© www.gardenworldimages.com</span></div><div _ngcontent-sc33="" class="cover-image__img" style="background-image:url('https://apps.rhs.org.uk/plantselectorimages/detail/WSY0034339_11017.jpg');"></div></div></div></div></div><div class="owl-item ng-tns-c29-2 ng-trigger ng-trigger-autoHeight ng-star-inserted" style="margin-right:16px;"><div _ngcontent-sc33="" class="carousel__item ng-star-inserted" style=""><div _ngcontent-sc33="" class="carousel__image-container image-frame image-frame--4x3 js-carousel-nav-target"><div _ngcontent-sc33="" class="cover-image cover-image--4x3 cover-image--no-placeholder"><div _ngcontent-sc33="" class="image-overlay image-overlay--tint image-overlay--large image-overlay--bottom"><span _ngcontent-sc33="" class="text-small">© RHS</span></div><div _ngcontent-sc33="" class="cover-image__img" style="background-image:url('https://apps.rhs.org.uk/plantselectorimages/detail/RHS0000234_308.jpg');"></div></div></div></div></div><div class="owl-item ng-tns-c29-2 ng-trigger ng-trigger-autoHeight cloned ng-star-inserted" style="margin-right:16px;"><div _ngcontent-sc33="" class="carousel__item ng-star-inserted" style=""><div _ngcontent-sc33="" class="carousel__image-container image-frame image-frame--4x3 js-carousel-nav-target"><div _ngcontent-sc33="" class="cover-image cover-image--4x3 cover-image--no-placeholder"><div _ngcontent-sc33="" class="image-overlay image-overlay--tint image-overlay--large image-overlay--bottom"><span _ngcontent-sc33="" class="text-small">© www.gardenworldimages.com</span></div><div _ngcontent-sc33="" class="cover-image__img" style="background-image:url('https://apps.rhs.org.uk/plantselectorimages/detail/WSY0034339_11017.jpg');"></div></div></div></div></div><div class="owl-item ng-tns-c29-2 ng-trigger ng-trigger-autoHeight cloned ng-star-inserted" style="margin-right:16px;"><div _ngcontent-sc33="" class="carousel__item ng-star-inserted" style=""><div _ngcontent-sc33="" class="carousel__image-container image-frame image-frame--4x3 js-carousel-nav-target"><div _ngcontent-sc33="" class="cover-image cover-image--4x3 cover-image--no-placeholder"><div _ngcontent-sc33="" class="image-overlay image-overlay--tint image-overlay--large image-overlay--bottom"><span _ngcontent-sc33="" class="text-small">© RHS</span></div><div _ngcontent-sc33="" class="cover-image__img" style="background-image:url('https://apps.rhs.org.uk/plantselectorimages/detail/RHS0000234_308.jpg');"></div></div></div></div></div></div></div></owl-stage></div><div _ngcontent-sc30="" class="owl-nav disabled ng-star-inserted"><div _ngcontent-sc30="" class="owl-prev">prev</div><div _ngcontent-sc30="" class="owl-next">next</div></div><div _ngcontent-sc30="" class="owl-dots disabled ng-star-inserted"></div></div></owl-carousel-o></div></div></app-plants-images-carousel></div><div _ngcontent-sc34="" class="l-module ng-star-inserted"><app-add-plant-to-collection _ngcontent-sc34="" _nghost-sc22=""><div _ngcontent-sc22="" class="rmg-action-button rmg-action-button--default ng-star-inserted"><a _ngcontent-sc22="" title="Save to My plants" class="button button--alt button--ghost button--small u-m-b-1"><span _ngcontent-sc22="" class="button__text">Save to My plants</span><span _ngcontent-sc22="" class="button__icon"><i _ngcontent-sc22="" class="rhs-icon rhs-icon-favourite"></i></span></a></div></app-add-plant-to-collection><lib-learn-more-modal _ngcontent-sc34=""></lib-learn-more-modal></div><div _ngcontent-sc34="" class="l-module ng-star-inserted"><h6 _ngcontent-sc34="">Buy this plant</h6><ul _ngcontent-sc34="" class="plants-button-list"><li _ngcontent-sc34="" class="plants-button-list__item ng-star-inserted"><span _ngcontent-sc34="" class="text-small"><strong _ngcontent-sc34="">Plant nurseries</strong></span><br _ngcontent-sc34=""><a _ngcontent-sc34="" data-ga-link-type="text" data-ga-component-name="app-plant-details-full" target="_self" routerlink="/plants/nurseries-search-result" class="button button--link button--small u-m-b-0" href="/plants/nurseries-search-result"><span _ngcontent-sc34="" class="button__text">11 suppliers</span><span _ngcontent-sc34="" class="button__icon button__icon--right"></span></a></li></ul></div></div></div></div><div _ngcontent-sc34="" class="l-module"><div _ngcontent-sc34="" class="plant-attributes"><div _ngcontent-sc34="" class="plant-attributes__panel"><div _ngcontent-sc34="" class="plant-attributes__header"><h6 _ngcontent-sc34="" class="plant-attributes__heading">Size</h6><div _ngcontent-sc34="" class="plant-attributes__header-indicator"></div></div><div _ngcontent-sc34="" class="plant-attributes__content"><div _ngcontent-sc34="" class="l-row l-row--space l-row--auto-clear"><div _ngcontent-sc34="" class="l-col-xs-6 l-col-sm-6 l-col-md-6 l-col-lg-6 ng-star-inserted"><div _ngcontent-sc34="" class="l-module"><div _ngcontent-sc34="" class="flag flag--small flag--top"><div _ngcontent-sc34="" class="flag__img"><i _ngcontent-sc34="" class="fal fa-long-arrow-alt-up fa-fw"></i></div><div _ngcontent-sc34="" class="flag__body"><h6 _ngcontent-sc34="" class="text-small u-m-b-0">Ultimate height</h6> 0.1–0.5 metres </div></div></div></div><div _ngcontent-sc34="" class="l-col-xs-6 l-col-sm-6 l-col-md-6 l-col-lg-6 ng-star-inserted"><div _ngcontent-sc34="" class="l-module"><div _ngcontent-sc34="" class="flag flag--small flag--top"><div _ngcontent-sc34="" class="flag__img"><i _ngcontent-sc34="" class="fal fa-clock fa-fw"></i></div><div _ngcontent-sc34="" class="flag__body"><h6 _ngcontent-sc34="" class="text-small u-m-b-0">Time to ultimate height</h6> 2–5 years </div></div></div></div><div _ngcontent-sc34="" class="l-col-xs-6 l-col-sm-6 l-col-md-6 l-col-lg-6 ng-star-inserted"><div _ngcontent-sc34="" class="l-module"><div _ngcontent-sc34="" class="flag flag--small flag--top"><div _ngcontent-sc34="" class="flag__img"><i _ngcontent-sc34="" class="fal fa-arrows-alt-h fa-fw"></i></div><div _ngcontent-sc34="" class="flag__body"><h6 _ngcontent-sc34="" class="text-small u-m-b-0">Ultimate spread</h6> 0.5–1 metres </div></div></div></div></div></div></div><div _ngcontent-sc34="" class="plant-attributes__panel"><div _ngcontent-sc34="" class="plant-attributes__header"><h6 _ngcontent-sc34="" class="plant-attributes__heading">Growing conditions</h6><div _ngcontent-sc34="" class="plant-attributes__header-indicator"></div></div><div _ngcontent-sc34="" class="plant-attributes__content"><div _ngcontent-sc34="" class="l-row l-row--space l-row--compact l-row--auto-clear ng-star-inserted"><div _ngcontent-sc34="" class="l-col-xs-6 l-col-sm-3 l-col-md-6 l-col-lg-3 ng-star-inserted"><div _ngcontent-sc34="" class="l-module"><div _ngcontent-sc34="" class="flag flag--small"><div _ngcontent-sc34="" class="flag__img"><span _ngcontent-sc34="" class="plant-icon plant-icon--chalk"></span></div><div _ngcontent-sc34="" class="flag__body">Chalk</div></div></div></div><div _ngcontent-sc34="" class="l-col-xs-6 l-col-sm-3 l-col-md-6 l-col-lg-3 ng-star-inserted"><div _ngcontent-sc34="" class="l-module"><div _ngcontent-sc34="" class="flag flag--small"><div _ngcontent-sc34="" class="flag__img"><span _ngcontent-sc34="" class="plant-icon plant-icon--sand"></span></div><div _ngcontent-sc34="" class="flag__body">Sand</div></div></div></div><div _ngcontent-sc34="" class="l-col-xs-6 l-col-sm-3 l-col-md-6 l-col-lg-3 ng-star-inserted"><div _ngcontent-sc34="" class="l-module"><div _ngcontent-sc34="" class="flag flag--small"><div _ngcontent-sc34="" class="flag__img"><span _ngcontent-sc34="" class="plant-icon plant-icon--loam"></span></div><div _ngcontent-sc34="" class="flag__body">Loam</div></div></div></div></div><div _ngcontent-sc34="" class="l-row l-row--space l-row--auto-clear"><div _ngcontent-sc34="" class="l-col-xs-6 l-col-sm-6 l-col-md-6 l-col-lg-6 ng-star-inserted"><div _ngcontent-sc34="" class="l-module"><h6 _ngcontent-sc34="" class="text-small u-m-b-0">Moisture</h6><span _ngcontent-sc34="" class="ng-star-inserted">Moist but well–drained</span></div></div><div _ngcontent-sc34="" class="l-col-xs-6 l-col-sm-6 l-col-md-6 l-col-lg-6 ng-star-inserted"><div _ngcontent-sc34="" class="l-module"><h6 _ngcontent-sc34="" class="text-small u-m-b-0">pH</h6><span _ngcontent-sc34="" class="ng-star-inserted">Alkaline, </span><span _ngcontent-sc34="" class="ng-star-inserted">Neutral</span></div></div></div></div></div><div _ngcontent-sc34="" class="plant-attributes__panel"><div _ngcontent-sc34="" class="plant-attributes__header"><div _ngcontent-sc34="" class="l-row"><div _ngcontent-sc34="" class="l-col-xs-12 l-col-sm-12 l-col-md-6"><div _ngcontent-sc34="" class="l-module"><h6 _ngcontent-sc34="" class="plant-attributes__heading">Colour & scent</h6></div></div></div><div _ngcontent-sc34="" class="plant-attributes__header-indicator"></div></div><div _ngcontent-sc34="" class="plant-attributes__content"><table _ngcontent-sc34="" class="table table--plant-details"><tbody><tr _ngcontent-sc34=""><td _ngcontent-sc34="" class="table__cell table__cell--left"></td><td _ngcontent-sc34="" class="table__cell table__cell--left">Stem</td><td _ngcontent-sc34="" class="table__cell table__cell--left">Flower</td><td _ngcontent-sc34="" class="table__cell table__cell--left">Foliage</td><td _ngcontent-sc34="" class="table__cell table__cell--left">Fruit</td></tr><tr _ngcontent-sc34=""><th _ngcontent-sc34="" class="table__cell table__cell--left">Spring</th><td _ngcontent-sc34="" class="table__cell table__cell--left"></td><td _ngcontent-sc34="" class="table__cell table__cell--left"></td><td _ngcontent-sc34="" class="table__cell table__cell--left"><span _ngcontent-sc34="" class="tooltip-v2 tooltip-v2--auto tooltip-v2--edge ng-star-inserted"><span _ngcontent-sc34="" class="plant-icon plant-icon--foliage-green u-img-zoom-100-sm u-img-zoom-75"></span><span _ngcontent-sc34="" role="tooltip" class="tooltip-v2__content"> Green </span></span></td><td _ngcontent-sc34="" class="table__cell table__cell--left"></td></tr><tr _ngcontent-sc34=""><th _ngcontent-sc34="" class="table__cell table__cell--left">Summer</th><td _ngcontent-sc34="" class="table__cell table__cell--left"></td><td _ngcontent-sc34="" class="table__cell table__cell--left"><span _ngcontent-sc34="" class="tooltip-v2 tooltip-v2--auto tooltip-v2--edge ng-star-inserted"><span _ngcontent-sc34="" class="plant-icon plant-icon--flower-blue u-img-zoom-100-sm u-img-zoom-75"></span><span _ngcontent-sc34="" role="tooltip" class="tooltip-v2__content"> Blue </span></span><span _ngcontent-sc34="" class="tooltip-v2 tooltip-v2--auto tooltip-v2--edge ng-star-inserted"><span _ngcontent-sc34="" class="plant-icon plant-icon--flower-purple u-img-zoom-100-sm u-img-zoom-75"></span><span _ngcontent-sc34="" role="tooltip" class="tooltip-v2__content"> Purple </span></span><span _ngcontent-sc34="" class="tooltip-v2 tooltip-v2--auto tooltip-v2--edge ng-star-inserted"><span _ngcontent-sc34="" class="plant-icon plant-icon--flower-white u-img-zoom-100-sm u-img-zoom-75"></span><span _ngcontent-sc34="" role="tooltip" class="tooltip-v2__content"> White </span></span></td><td _ngcontent-sc34="" class="table__cell table__cell--left"><span _ngcontent-sc34="" class="tooltip-v2 tooltip-v2--auto tooltip-v2--edge ng-star-inserted"><span _ngcontent-sc34="" class="plant-icon plant-icon--foliage-green u-img-zoom-100-sm u-img-zoom-75"></span><span _ngcontent-sc34="" role="tooltip" class="tooltip-v2__content"> Green </span></span></td><td _ngcontent-sc34="" class="table__cell table__cell--left"></td></tr><tr _ngcontent-sc34=""><th _ngcontent-sc34="" class="table__cell table__cell--left">Autumn</th><td _ngcontent-sc34="" class="table__cell table__cell--left"></td><td _ngcontent-sc34="" class="table__cell table__cell--left"></td><td _ngcontent-sc34="" class="table__cell table__cell--left"><span _ngcontent-sc34="" class="tooltip-v2 tooltip-v2--auto tooltip-v2--edge ng-star-inserted"><span _ngcontent-sc34="" class="plant-icon plant-icon--foliage-green u-img-zoom-100-sm u-img-zoom-75"></span><span _ngcontent-sc34="" role="tooltip" class="tooltip-v2__content"> Green </span></span></td><td _ngcontent-sc34="" class="table__cell table__cell--left"></td></tr><tr _ngcontent-sc34=""><th _ngcontent-sc34="" class="table__cell table__cell--left">Winter</th><td _ngcontent-sc34="" class="table__cell table__cell--left"></td><td _ngcontent-sc34="" class="table__cell table__cell--left"></td><td _ngcontent-sc34="" class="table__cell table__cell--left"></td><td _ngcontent-sc34="" class="table__cell table__cell--left"></td></tr></tbody></table></div></div><div _ngcontent-sc34="" class="plant-attributes__panel"><div _ngcontent-sc34="" class="plant-attributes__header"><h6 _ngcontent-sc34="" class="plant-attributes__heading">Position</h6><div _ngcontent-sc34="" class="plant-attributes__header-indicator"></div></div><div _ngcontent-sc34="" class="plant-attributes__content"><ul _ngcontent-sc34="" class="list-inline ng-star-inserted"><li _ngcontent-sc34="" class="ng-star-inserted"><div _ngcontent-sc34="" class="flag flag--tiny"><div _ngcontent-sc34="" class="flag__img"><span _ngcontent-sc34="" class="plant-icon plant-icon--full-sun"></span></div><div _ngcontent-sc34="" class="flag__body u-w-auto">Full sun</div></div></li><li _ngcontent-sc34="" class="ng-star-inserted"><div _ngcontent-sc34="" class="flag flag--tiny"><div _ngcontent-sc34="" class="flag__img"><span _ngcontent-sc34="" class="plant-icon plant-icon--partial-shade"></span></div><div _ngcontent-sc34="" class="flag__body u-w-auto">Partial shade</div></div></li></ul><h6 _ngcontent-sc34="" class="text-small u-m-b-0">Aspect</h6><p _ngcontent-sc34=""><span _ngcontent-sc34="" class="ng-star-inserted">South–facing or </span><span _ngcontent-sc34="" class="ng-star-inserted">North–facing or </span><span _ngcontent-sc34="" class="ng-star-inserted">East–facing or </span><span _ngcontent-sc34="" class="ng-star-inserted">West–facing</span></p><div _ngcontent-sc34="" class="l-row l-row--space l-row--auto-clear"><div _ngcontent-sc34="" class="l-col-xs-6 l-col-sm-6 l-col-md-6 l-col-lg-6"><div _ngcontent-sc34="" class="l-module"><h6 _ngcontent-sc34="" class="text-small u-m-b-0">Exposure</h6><span _ngcontent-sc34="" class="ng-star-inserted">Exposed or </span><span _ngcontent-sc34="" class="ng-star-inserted">Sheltered</span></div></div><div _ngcontent-sc34="" class="l-col-xs-6 l-col-sm-6 l-col-md-6 l-col-lg-6 ng-star-inserted"><div _ngcontent-sc34="" class="l-module"><h6 _ngcontent-sc34="" class="text-small u-m-b-0"> Hardiness <span _ngcontent-sc34=""><i _ngcontent-sc34="" class="fas fa-info-circle text-icon"></i></span><popover-content _ngcontent-sc34="" class="popover-content-outer"><div role="popover" class="bs-popover- popover-content popover sm" style="top:-10000px;left:-10000px;opacity:0;display:block;" aria-hidden="true"><div class="virtual-area"></div><div class="arrow"></div><div class="popover-header" hidden=""></div><div class="popover-body"><span _ngcontent-sc34="" class="text-tight"><h6 _ngcontent-sc34="" class="text-small">Hardiness ratings</h6><p _ngcontent-sc34=""><em _ngcontent-sc34="">All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets</em></p><ul _ngcontent-sc34=""><li _ngcontent-sc34=""><strong _ngcontent-sc34="">H1a</strong>: under glass all year (>15C)</li><li _ngcontent-sc34=""><strong _ngcontent-sc34="">H1b</strong>: can be grown outside in the summer (10 - 15)</li><li _ngcontent-sc34=""><strong _ngcontent-sc34="">H1c</strong>: can be grown outside in the summer (5 - 10)</li><li _ngcontent-sc34=""><strong _ngcontent-sc34="">H2</strong>: tolerant of low temperatures, but not surviving being frozen (1 to 5)</li><li _ngcontent-sc34=""><strong _ngcontent-sc34="">H3</strong>: hardy in coastal and relatively mild parts of the UK (-5 to 1)</li><li _ngcontent-sc34=""><strong _ngcontent-sc34="">H4</strong>: hardy through most of the UK (-10 to -5)</li><li _ngcontent-sc34=""><strong _ngcontent-sc34="">H5</strong>: hardy in most places throughout the UK even in severe winters (-15 to -10)</li><li _ngcontent-sc34=""><strong _ngcontent-sc34="">H6</strong>: hardy in all of UK and northern Europe (-20 to -15)</li><li _ngcontent-sc34=""><strong _ngcontent-sc34="">H7</strong>: hardy in the severest European continental climates (< -20)</li></ul></span> </div></div></popover-content></h6><span _ngcontent-sc34="">H7</span></div></div></div></div></div></div></div></div></div></section><section _ngcontent-sc34="" class="section"><div _ngcontent-sc34="" class="section__container"><div _ngcontent-sc34="" class="l-row l-row--space"><div _ngcontent-sc34="" class="l-col-lg-7"><div _ngcontent-sc34="" class="l-module"><div _ngcontent-sc34="" class="panel panel--border"><div _ngcontent-sc34="" class="panel__content"><div _ngcontent-sc34="" class="panel__heading"><h5 _ngcontent-sc34="">Botanical details</h5></div><div _ngcontent-sc34="" class="panel__body"><div _ngcontent-sc34="" class="content"><dl _ngcontent-sc34="" class="columns columns--xs-1 columns--sm-2 text-small u-m-b-0"><span _ngcontent-sc34="" class="columns__group ng-star-inserted"><dt _ngcontent-sc34="">Family</dt><dd _ngcontent-sc34="">Campanulaceae</dd></span><span _ngcontent-sc34="" class="columns__group"><dt _ngcontent-sc34="">Native to GB / Ireland</dt><dd _ngcontent-sc34="">Yes</dd></span><span _ngcontent-sc34="" class="columns__group ng-star-inserted"><dt _ngcontent-sc34="">Foliage</dt><dd _ngcontent-sc34=""><span _ngcontent-sc34="" class="ng-star-inserted">Deciduous</span></dd></span><span _ngcontent-sc34="" class="columns__group ng-star-inserted"><dt _ngcontent-sc34="">Habit</dt><dd _ngcontent-sc34=""><span _ngcontent-sc34="" class="ng-star-inserted">Clump forming</span></dd></span><span _ngcontent-sc34="" class="columns__group ng-star-inserted"><dt _ngcontent-sc34="">Genus</dt><dd _ngcontent-sc34=""><p _ngcontent-sc34="">Campanula may be annuals, herbaceous or evergreen perennials, with bell or star-shaped, often blue, flowers in late spring or summer</p></dd></span><span _ngcontent-sc34="" class="columns__group ng-star-inserted"><dt _ngcontent-sc34="">Name status</dt><dd _ngcontent-sc34=""><p _ngcontent-sc34="">Correct</p></dd></span><span _ngcontent-sc34="" class="columns__group ng-star-inserted"><dt _ngcontent-sc34="">Plant range</dt><dd _ngcontent-sc34="">Europe, temp. Asia</dd></span></dl></div></div></div></div></div></div><div _ngcontent-sc34="" class="l-col-lg-4 l-col-lg--push-1 ng-star-inserted"><div _ngcontent-sc34="" class="l-full-width-xs-only"><div _ngcontent-sc34="" class="ad-slot ad-slot--responsive"><app-advertisement _ngcontent-sc34="" uniqueid="plantDetailsMpuAd" adtype="mpu"><div id="plantDetailsMpuAd"></div></app-advertisement><p _ngcontent-sc34="" class="ad-slot__label"><a _ngcontent-sc34="" data-ga-link-type="text" data-ga-component-name="app-plant-details-full" target="_self" href="/about-us/commercial-opportunities/advertising">Advertise here</a></p></div></div></div></div></div></section><section _ngcontent-sc34="" class="section"><div _ngcontent-sc34="" class="section__container"><div _ngcontent-sc34="" class="l-row l-row--space"><div _ngcontent-sc34="" class="l-col-lg-9"><div _ngcontent-sc34="" class="l-module"><div _ngcontent-sc34="" class="content"><h2 _ngcontent-sc34="">How to grow</h2><span _ngcontent-sc34="" class="ng-star-inserted"><h5 _ngcontent-sc34="">Cultivation</h5><p _ngcontent-sc34="">Grow in fertile neutral to alkaline, moist but well-drained soil in sun or part shade. Delicate flower colours are best preserved in shade. Suitable for naturalizing in woodland and wildflower gardens</p></span><span _ngcontent-sc34="" class="ng-star-inserted"><h5 _ngcontent-sc34="">Propagation</h5><p _ngcontent-sc34="">Propagate by seed, propagate by <a href="https://www.rhs.org.uk/plants/types/perennials/dividing">division</a> in spring or autumn or by basal <a href="https://www.rhs.org.uk/propagation/softwood-cuttings">softwood</a> cuttings in spring</p></span><span _ngcontent-sc34="" class="ng-star-inserted"><h5 _ngcontent-sc34="">Suggested planting locations and garden types</h5><ul _ngcontent-sc34=""><li _ngcontent-sc34="" class="ng-star-inserted">Cottage and informal garden</li><li _ngcontent-sc34="" class="ng-star-inserted">Wildflower meadow</li><li _ngcontent-sc34="" class="ng-star-inserted">Wildlife gardens</li><li _ngcontent-sc34="" class="ng-star-inserted">Flower borders and beds</li><li _ngcontent-sc34="" class="ng-star-inserted">Ground cover</li></ul></span><span _ngcontent-sc34="" class="ng-star-inserted"><h5 _ngcontent-sc34="">Pruning</h5><p _ngcontent-sc34="">Cut back after flowering to prevent self-seeding and to encourage a second flush of flowers</p></span><span _ngcontent-sc34="" class="ng-star-inserted"><h5 _ngcontent-sc34="">Pests</h5><p _ngcontent-sc34="">May be susceptible to <a href="https://www.rhs.org.uk/biodiversity/slugs">slugs</a> and <a href="https://www.rhs.org.uk/biodiversity/snails">snails</a></p></span><span _ngcontent-sc34="" class="ng-star-inserted"><h5 _ngcontent-sc34="">Diseases</h5><p _ngcontent-sc34="">May be susceptible to <a href="https://www.rhs.org.uk/disease/rust-diseases">a rust</a>, <a href="https://www.rhs.org.uk/disease/powdery-mildews">powdery mildews</a> and a leaf spot</p></span></div></div><div _ngcontent-sc34="" class="l-module"><div _ngcontent-sc34="" ub-in-page="56c1d09b42ec901fe4241109"></div></div></div></div></div></section></lib-plant-details-full><div _ngcontent-sc76="" class="f2"><div _ngcontent-sc76="" class="rmg-quick-heart"></div></div></app-plant-details-page><app-footer _ngcontent-sc126="" _nghost-sc109=""><section _ngcontent-sc109="" id="get-involved" class="section u-compact-page-hide"><div _ngcontent-sc109="" class="section__container"><h2 _ngcontent-sc109="" class="alpha text-center u-m-t-0">Get involved</h2><div _ngcontent-sc109="" class="text-center"><p _ngcontent-sc109="">The Royal Horticultural Society is the UK’s leading gardening charity. 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_ngcontent-sc109="" class="l-col-sm-6"><div _ngcontent-sc109="" class="l-module"><p _ngcontent-sc109="" class="footer__reg text-right-sm"><a _ngcontent-sc109="" data-ga-link-type="text" data-ga-component-name="app-footer" href="/about-us/what-we-do">RHS Registered Charity no. 222879 / SC038262</a></p></div></div></div></div></div></div></div></footer><app-scroll-top _ngcontent-sc109=""><a role="button" class="back-to-top u-cursor-pointer"><i aria-hidden="true" class="fa fa-chevron-up"></i></a></app-scroll-top></app-footer><lib-login-and-register-popup-form _ngcontent-sc126="" _nghost-sc115=""></lib-login-and-register-popup-form><lib-save-collection-modal _ngcontent-sc126=""></lib-save-collection-modal></app-root><script id="serverApp-state" type="application/json">{&q;plantDetailsStateKey_96441&q;:{&q;id&q;:96441,&q;synonyms&q;:[],&q;isSynonym&q;:false,&q;synonymParentPlantId&q;:0,&q;synonymParentPlantName&q;:null,&q;autoCompleteField&q;:&q;Campanula glomerata|clustered bellflower|clychlys clwstwr&q;,&q;autoCompleteFieldList&q;:[&q;Campanula glomerata&q;,&q;clychlys clwstwr&q;],&q;botanicalName&q;:&q;&l;em&g;Campanula&l;/em&g; &l;em&g;glomerata&l;/em&g;&q;,&q;botanicalNameUnFormatted&q;:&q;Campanula glomerata&q;,&q;family&q;:&q;Campanulaceae&q;,&q;genus&q;:&q;Campanula&q;,&q;entityDescription&q;:&q;Vigorous rhizomatous perennial to about 45cm tall, forming an extensive clump of erect stems bearing dark green ovate leaves, and dense terminal racemes of deep violet-blue, or white, bell-shaped flowers all summer&q;,&q;genusDescription&q;:&q;Campanula may be annuals, herbaceous or evergreen perennials, with bell or star-shaped, often blue, flowers in late spring or summer&q;,&q;price&q;:null,&q;plantType&q;:[1],&q;foliage&q;:[1],&q;notedForFragrance&q;:false,&q;fragrance&q;:&q;&q;,&q;isNative&q;:true,&q;habit&q;:[3],&q;images&q;:[{&q;image&q;:&q;WSY0034339_11017.jpg&q;,&q;copyRight&q;:&q;www.gardenworldimages.com&q;},{&q;image&q;:&q;RHS0000234_308.jpg&q;,&q;copyRight&q;:&q;RHS&q;}],&q;imageCopyRight&q;:&q;[www.gardenworldimages.com], [RHS]&q;,&q;commonName&q;:&q;clustered bellflower&q;,&q;commonNameSortField&q;:&q;clustered bellflower&q;,&q;commonNames&q;:[&q;clychlys clwstwr&q;],&q;nurseriesCount&q;:11,&q;isAgm&q;:false,&q;isGenus&q;:false,&q;isSpecie&q;:false,&q;isPlantsForPollinators&q;:true,&q;hardinessLevel&q;:9,&q;sunlight&q;:[1,2],&q;soilType&q;:[2,3,1],&q;spreadType&q;:[3],&q;heightType&q;:[2],&q;spread&q;:&q;0.5-1 metres&q;,&q;height&q;:&q;0.1-0.5 metres&q;,&q;timeToFullHeight&q;:[3],&q;aspect&q;:[3,2,1,4],&q;moisture&q;:[3],&q;ph&q;:[2,3],&q;suggestedPlantUses&q;:[4,10,11],&q;plantingPlaces&q;:[3,5],&q;exposure&q;:[2,1],&q;cultivation&q;:&q;Grow in fertile neutral to alkaline, moist but well-drained soil in sun or part shade. 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Suitable for naturalizing in woodland and wildflower gardens&q;,&q;pestResistance&q;:&q;May be susceptible to &l;a href=\&q;https://www.rhs.org.uk/biodiversity/slugs\&q;&g;slugs&l;/a&g; and &l;a href=\&q;https://www.rhs.org.uk/biodiversity/snails\&q;&g;snails&l;/a&g;&q;,&q;diseaseResistance&q;:&q;May be susceptible to &l;a href=\&q;https://www.rhs.org.uk/disease/rust-diseases\&q;&g;a rust&l;/a&g;, &l;a href=\&q;https://www.rhs.org.uk/disease/powdery-mildews\&q;&g;powdery mildews&l;/a&g; and a leaf spot&q;,&q;pruning&q;:&q;Cut back after flowering to prevent self-seeding and to encourage a second flush of flowers&q;,&q;propagation&q;:&q;Propagate by seed, propagate by &l;a href=\&q;https://www.rhs.org.uk/plants/types/perennials/dividing\&q;&g;division&l;/a&g; in spring or autumn or by basal &l;a href=\&q;https://www.rhs.org.uk/propagation/softwood-cuttings\&q;&g;softwood&l;/a&g; cuttings in spring&q;,&q;isLowMaintenance&q;:false,&q;isDroughtResistance&q;:false,&q;supplierURL&q;:&q;&q;,&q;hortGroupDescription&q;:&q;&q;,&q;range&q;:&q;Europe, temp. 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Campanula glomerata | clustered bellflower Herbaceous Perennial/RHS