PlantPeers
Back to Catalog
No image available
Campanulaceae FAMILY

Campanula glomerata

Campanula glomerata

Edibility
3/5
Medicinal
0/5

Safety & Hazards

None known

Cultivation Details

HabitPerennial
GrowthMedium

Campanula glomerata is fairly cold hardy, able to withstand winter temperatures down to at least -15°c[1]. Prefers a moist but well-drained rich sandy loam and a neutral or alkaline soil in sun or partial shade[2, 1]. Succeeds in any well-drained soil in sun or partial shade[3]. In hot summer climates the plant benefits from some shade at the hottest time of the day[4]. A very ornamental plant, there are several named forms[1]. This is a very vigorous species and can be invasive, spreading by means of its creeping rootstock, when well suited to its site[1]. Divide clumps in the autumn every 3 - 5 years in order to maintain vigour and/or to control its spread[4]. Members of this genus are rarely if ever troubled by browsing deer[3]. The species in this genus do not often hybridize and so seed can generally be relied upon to come true[5]. The plants are self-fertile[5].

Propagation

Seed - surface sow spring in a cold frame. The seed usually germinates in 2 - 4 weeks at 18°c. Very easy[5]. When they are large enough to handle, prick the seedlings out into individual pots and grow them on in a cold frame for at least their first winter. Plant them out into their permanent positions in late spring or early summer, after the last expected frosts. Basal cuttings in spring. Very easy[5]. Harvest the shoots when they are about 10 - 15cm long with plenty of underground stem. Pot them up into individual pots and keep them in light shade in a cold frame or greenhouse until they are rooting well. Plant them out in the summer. Division in spring or autumn. Very easy[5], larger clumps can be replanted direct into their permanent positions, though it is best to pot up smaller clumps and grow them on in a cold frame until they are rooting well. Plant them out in the summer or following spring. Cite as: Temperate Plants Database, Ken Fern. temperate.theferns.info. 2026-02-20. <temperate.theferns.info/plant/Campanula+glomerata>

Pollinators

Data unavailable

References

  1. [1]The New RHS Dictionary of Gardening. 1992. — Huxley. A. · MacMillan Press · 1992 · ISBN 0-333-47494-5 ↩︎Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
  2. [2]RHS Dictionary of Plants plus Supplement. 1956 — F. Chittendon. · Oxford University Press · 1951 · ISBN - ↩︎Comprehensive listing of species and how to grow them. Somewhat outdated, it has been replaced in 1992 by a new dictionary (see [ 200 ]).
  3. [3]Perennial Garden Plants — Thomas. G. S. · J. M. Dent & Sons, London. · 1990 · ISBN 0 460 86048 8 ↩︎A concise guide to a wide range of perennials. Lots of cultivation guides, very little on plant uses.
  4. [4]KemperCentreForHomeGardeningPlantFinder — Missouri Botanical Garden · http://www.mobot.org/gardeninghelp/plantfinder/ ↩︎Basic cultivation details, plant uses, habitat etc for several thousand species of plants, mainly from the temperate zone.
  5. [5]Campanulas - their cultivation and classification. — Crook. H. Clifford. · Country Life · 1951 · ISBN - ↩︎The most comprehensive treatment of the genus yet written (2002).
  6. [6]Flora of the USSR. — Komarov. V. L. · Israel Program for Scientific Translation · 1968 · http://www.biodiversitylibrary.org · ISBN - ↩︎An immense (25 or more large volumes) and not yet completed translation of the Russian flora. Full of information on plant uses and habitats but heavy going for casual readers. It can be downloaded from the Internet.
  7. [7]Flora of the British Isles. — Clapham, Tutin and Warburg. · Cambridge University Press · 1962 · ISBN - ↩︎A very comprehensive flora, the standard reference book but it has no pictures.
  8. [PFAF]Plants for a Future — pfaf.org ↩︎