Sea Campion Wildflower Seed (Silene uniflora) is a salt- and drought-tolerant UK native, ideal for coastal, rocky, and dry meadow plantings, with low-growing foliage and distinctive white flowers that support pollinators.
Benefits
Native coastal wildflower with unique white blooms
Ideal for dry, rocky, or exposed planting areas
Highly tolerant of drought and salt-laden winds
Supports pollinators in low-nutrient habitats
Excellent for green roofs, sea walls, and restoration schemes
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Sea Campion (Silene uniflora) is a resilient native UK wildflower commonly found on coastal cliffs, shingle banks, and rocky shores. Recognised by its trailing grey-green foliage and delicate white, balloon-shaped flowers, this perennial species is well adapted to poor, free-draining soils and exposed conditions. Sea Campion brings visual interest to coastal planting schemes and dry meadows while providing a nectar source for insects.
Ideal for nutrient-poor, sandy, or rocky soils, Sea Campion thrives in full sun and tolerates wind, salt spray, and drought. Its low-growing, clump-forming habit makes it a great choice for green roofs, coastal restoration, and habitat creation in challenging environments.
Features & Benefits
Distinct white flowers with inflated calyxes
Native UK wildflower for coastal and dry soils
Low-growing perennial suited to exposed locations
Tolerant of salt, drought, and wind
Supports pollinators in coastal habitats
Latin Name:
Silene uniflora
Flowering Time:
May – August
Flowering Height:
10 – 30 cm
Life Cycle:
Perennial
Wildflower Seed Approximate Sowing Rate:
2.75kg per acre (6.8kg per hectare)
Sowing Times:
Spring (March – May) or Autumn (August – October)
How to Sow & Preparation
Prepare a free-draining, low-fertility seedbed by removing weeds and lightly raking.
Broadcast seed evenly and press into the soil surface—do not bury.
Avoid fertilising the soil to preserve competitive balance.
Water if dry, but Sea Campion establishes well in lean, dry soils.
Cut back competing vegetation during establishment to encourage growth.
About John Chambers Wildflower Seeds
John Chambers Wildflower Seeds has been a trusted supplier of native UK wildflower seeds for over 35 years. Known for its high-quality, locally sourced seed and outstanding customer service, John Chambers provides ecological solutions for landscape contractors, local authorities, and conservationists focused on creating sustainable, biodiverse landscapes.
Attribute Detail
Latin Name Silene uniflora
Flowering Time May – August
Flowering Height 10 – 30 cm
Life Cycle Perennial
Sowing Rate 2.75kg per acre (6.8kg per hectare)
Sowing Period Spring or Autumn
Preferred Conditions Dry, sandy, or rocky soils; full sun; coastal exposure
Pollinator Friendly Yes
Minimum Order Quantity 100g
Ideal For Coastal areas, cliffs, dunes, green roofs, dry meadows
