
Campanula punctata
Campanula punctata
Safety & Hazards
None known
Cultivation Details
Campanula punctata is a fairly cold-hardy plant, tolerating winter temperatures falling to around -10 to -15°c[1]. Succeeds in most fertile well-drained soils[2], though it prefers a moist but well-drained rich sandy loam and a neutral or alkaline soil in sun or partial shade[3, 1]. Plants appreciate part-day shade when growing in areas with hot summers[4]. This species has proved to be difficult of cultivation in many gardens, though it spreads freely in others[5] and can become invasive[2]. It probably requires a very light soil, and is more inclined to die out when growing in clay[5, 6]. Where successful, the plants usually produce an abundance of seed and sometimes self-sow[5, 6]. The species in this genus do not often hybridize and so seed can generally be relied upon to come true[5]. This species is self-fertile[5]. There are several named forms selected for their ornamental value[1]. Members of this genus are rarely if ever troubled by browsing deer[2].
Propagation
Seed - surface sow spring in a cold frame. The seed usually germinates in 2 - 4 weeks at 18°c. 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. 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+punctata>
Pollinators
Data unavailable
References
- [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]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.
- [3]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 ]).
- [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]Campanulas - their cultivation and classification. — Crook. H. Clifford. · Country Life · 1951 · ISBN - ↩︎The most comprehensive treatment of the genus yet written (2002).
- [6]Campanulas - A Gardener's Guide. — Lewis. P. & Lynch. M. · B. T. Batsford. London. · 1998 · ISBN 0-7134-8266-4 ↩︎Very readable account of almost 150 members of the genus, together with their hybrids and cultivars, that are more commonly grown in gardens. Excellent photographs of many of the species.
- [7]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.
- [8]Flora of Japan. (English translation) — Ohwi. G. · Smithsonian Institution · 1965 · ISBN - ↩︎The standard work. Brilliant, but not for the casual reader.
- [9]Flora of Japan — http://www.foj.info ↩︎An on-line version of the flora - an excellent resource.
- [10]Plants for Human Consumption. — Kunkel. G. · Koeltz Scientific Books · 1984 · ISBN 3874292169 ↩︎An excellent book for the dedicated. A comprehensive listing of Latin names with a brief list of edible parts.
- [11]Famine Foods listed in the Chiu-Huang Pen-ts'ao. — Reid. B. E. · Southern Materials Centre; Taipei · 1977 · ISBN - ↩︎A translation of an ancient Chinese book on edible wild foods. Fascinating.
- [12]Cornucopia - A Source Book of Edible Plants. — Facciola. S. · Kampong Publications · 1990 · ISBN 0-9628087-0-9 ↩︎Excellent. Contains a very wide range of conventional and unconventional food plants (including tropical) and where they can be obtained (mainly N. American nurseries but also research institutes and a lot of other nurseries from around the world.
- [PFAF]Plants for a Future — pfaf.org ↩︎