Alphabetical Plant Listing

Silene uniflora (Sea Campion)

Sea Campion, Bladder Campion, Silene maritima


A common sight on the seacoasts of western Europe, Silene uniflora (Sea Campion) is a low-growing, semi-evergreen perennial forming a mat of smooth, blue-green, waxy leaves which are lanceolate, stalkless and borne in opposite pairs. Blooming for 6-8 weeks in late spring to early summer, masses of white flowers, 1 in. across (2.5 cm), are borne singly or in small clusters and rise on short, erect stems above the foliage. Each blossom is adorned with five bi-lobed petals and an inflated green-tinged fused calyx. Rich in pollen, they attract butterflies and other pollinating insects. This perennial wildflower is short-lived but self-seeds. Undemanding, Sea Campion makes an ideal rock garden specimen and looks great dripping out of mixed containers. Excellent as a groundcover in cottage gardens or for naturalizing in hot dry locations.

  • Grows up to 6 in. tall (15 cm) and 8 in. wide (20 cm).
  • Pest and disease free and low maintenance, this eye-catching beauty is also drought tolerant (once established).
  • Thrives in full sun in average, dry to medium moisture, well-drained soils. Excellent drainage is essential.
  • Easily propagated from seed and may self-seed in sunny sites.
  • Native to coastal regions of western and northern Europe.

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Requirements

Hardiness 3 – 8
Heat Zones 1 – 7
Climate Zones 1, 1A, 1B, 2, 2A, 2B, 3, 3A, 3B, 4, 5, 6, 7, 8, 9, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Plant Type Perennials
Plant Family Silene - Campions
Exposure Full Sun
Season of Interest Spring (Late)
Summer (Early)
Height 5" – 6" (12cm – 15cm)
Spread 7" – 8" (17cm – 20cm)
Spacing 8" (20cm)
Water Needs Low
Maintenance Low
Soil Type Chalk, Loam, Sand
Soil pH Alkaline, Neutral
Soil Drainage Moist but Well-Drained, Well-Drained
Characteristics Showy, Semi-Evergreen
Tolerance Drought, Dry Soil, Rocky Soil, Salt
Attracts Butterflies
Garden Uses Beds and Borders, Ground Covers, Patio and Containers
Garden Styles Gravel and Rock Garden, Informal and Cottage

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Arousa, Shutterstock

While every effort has been made to describe these plants accurately, please keep in mind that height, bloom time, and color may differ in various climates. The description of these plants has been written based on numerous outside resources.


Requirements

Hardiness 3 – 8
Heat Zones 1 – 7
Climate Zones 1, 1A, 1B, 2, 2A, 2B, 3, 3A, 3B, 4, 5, 6, 7, 8, 9, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Plant Type Perennials
Plant Family Silene - Campions
Exposure Full Sun
Season of Interest Spring (Late)
Summer (Early)
Height 5" – 6" (12cm – 15cm)
Spread 7" – 8" (17cm – 20cm)
Spacing 8" (20cm)
Water Needs Low
Maintenance Low
Soil Type Chalk, Loam, Sand
Soil pH Alkaline, Neutral
Soil Drainage Moist but Well-Drained, Well-Drained
Characteristics Showy, Semi-Evergreen
Tolerance Drought, Dry Soil, Rocky Soil, Salt
Attracts Butterflies
Garden Uses Beds and Borders, Ground Covers, Patio and Containers
Garden Styles Gravel and Rock Garden, Informal and Cottage

Great Plant Combination Ideas with Silene - Campions

Guides with Silene - Campions

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