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Campanula ‘Cup and Saucer’
Campanula ‘Cup and Saucer’

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Zone
Zones 1-9, 14-24, 31-45
Full SunPartial Sun
Full, Partial
Regular Water
Moderate

Campanula punctata

Campanulaceae (Lobeliaceae)
Ground covers, Perennials, Flowers

CAMPANULA

Campanulas are most often recognized by their blue or white flowers (they also come in pink, violet, and lavender). Usually, flower stalks rise above basal leaf rosettes. The perennial species tend to spread from the root; width depends mainly on the vigor of their rootstocks and the time they have been in one spot. Flowers are generally bell shaped, though some are star shaped, cupped, or round and flat. Bloom comes at some time from spring to fall, depending on the species. Native throughout the Northern Hemisphere; those featured here come mostly from southern Europe, Turkey, the Caucasus, and northern Asia.

Uses are as varied as the plants. Gemlike miniatures deserve special settings—close-up situations in rock gardens, niches in dry walls, raised beds, or containers. Trailing kinds are ideal for hanging pots or baskets and wall crevices; vigorous, spreading growers serve well as groundcovers. Upright growers are valuable in borders, for cutting, and occasionally in containers.

Campanulas grow best in good, well-drained soil. Most species are easy to grow from seeds sown in spring or early summer. Set transplants out in fall for bloom the following year. Also may be increased by divisions or cuttings. Divide clumps in fall every 3 or 4 years; some may need yearly division. Some species seed freely, and a few have invasive tendencies; may be difficult to remove when entwined with roots of shrubs, trees, or other perennials. For these species, choose sites carefully. Some campanulas are attractive to slugs and snails. Watch for spider mites in hot, dry weather.

Campanula punctata ‘Cherry Bells’ (photo courtesy of Denver Botanic Gardens)
Campanula punctata ‘Cherry Bells’ (photo courtesy of Denver Botanic Gardens)

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Campanula punctata

Flat basal rosette spreads rapidly by underground runners. Wiry 1–1 1/2-ft. flower stems arch over at the tip. Foliage is dark green, toothed, 4–5 in. across, heart shaped; leaves are narrower on upper stems. Flowers are 2–2 1/2 in. long, tubular, waxy, and shaped like drooping bells, in shades from cream through pink to deep maroon. The inside of the flower is paler and spotted with crimson. Blooms late spring to early summer, with some scattered bloom until frost.

Forms a dense, weed-suppressing mat between shrubs but is too invasive for mixed borders. Some dwarf forms exist.

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