''Campanula portenschlagiana'', the wall bellflower, is a

species In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate s ...

flowering plant Flowering plants are plants that bear flowers and fruits, and form the clade Angiospermae (), commonly called angiosperms. The term "angiosperm" is derived from the Greek words ('container, vessel') and ('seed'), and refers to those plants th ...

in the

family Family (from la, familia) is a group of people related either by consanguinity (by recognized birth) or affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its members and of society. Idea ...

Campanulaceae,

native Native may refer to: People * Jus soli, citizenship by right of birth * Indigenous peoples, peoples with a set of specific rights based on their historical ties to a particular territory ** Native Americans (disambiguation) In arts and entert ...

to the Dalmatian Mountains in

Croatia , image_flag = Flag of Croatia.svg , image_coat = Coat of arms of Croatia.svg , anthem = "Lijepa naša domovino"("Our Beautiful Homeland") , image_map = , map_caption = , capit ...

. It is a vigorous, low-growing, mound-forming

evergreen In botany, an evergreen is a plant which has foliage that remains green and functional through more than one growing season. This also pertains to plants that retain their foliage only in warm climates, and contrasts with deciduous plants, whic ...

perennial A perennial plant or simply perennial is a plant that lives more than two years. The term ('' per-'' + '' -ennial'', "through the years") is often used to differentiate a plant from shorter-lived annuals and biennials. The term is also wid ...

with deep purple flowers in summer. Other common names include Dalmatian bellflower,

Adria Adria is a town and ''comune'' in the province of Rovigo in the Veneto region of northern Italy, situated between the mouths of the rivers Adige and Po River, Po. The remains of the Etruria, Etruscan city of Atria or Hatria are to be found below ...

bellflower and Campanula muralis.

Description

The plant forms a mat of foliage about high and or more wide, with many heart- or kidney-shaped leaves. Deep purple or blue, funnel-shaped, 5-petalled flowers, 2 cm long, are borne in profusion, completely covering the plant from mid- to late summer. Flowers may be pollinated by beetles, flies, bees and butterflies, but are also capable of

self-pollinating Self-pollination is a form of pollination in which pollen from the same plant arrives at the stigma of a flower (in flowering plants) or at the ovule (in gymnosperms). There are two types of self-pollination: in autogamy, pollen is transferred t ...

. The Latin specific epithet ''portenschlagiana'' commemorates the Austrian naturalist Franz von Portenschlag-Leydermayer (1772–1822).

Cultivation and uses

''Campanula portenschlagiana'' is an alpine plant requiring sharp drainage, so is suitable for an

alpine garden An alpine garden (or alpinarium, alpinum) is a domestic or botanical garden, or more often a part of a larger garden, specializing in the collection and cultivation of alpine plants growing naturally at high altitudes around the world, such as in ...

, rock garden, or as groundcover, in sun or partial shade. Given suitable conditions, it will rapidly colonise cracks and crevices in walls and pavements. It is hardy to USDA hardiness zone 3. This plant has gained the

Royal Horticultural Society The Royal Horticultural Society (RHS), founded in 1804 as the Horticultural Society of London, is the UK's leading gardening charity. The RHS promotes horticulture through its five gardens at Wisley (Surrey), Hyde Hall (Essex), Harlow Carr (Nor ...

's Award of Garden Merit.

References

{{Taxonbar, from=Q847433 portenschlagiana Alpine flora Flora of Croatia