Bladder Campion (Silene vulgaris) is a hardy and distinctive native UK wildflower, named for its inflated, bladder-like calyx that gives its small white flowers a unique appearance. This perennial species is commonly found in grasslands, road verges, field margins, and dry banks, thriving in poor, well-drained soils. Its upright, branching stems and delicate flowers add charm and structure to wildflower meadows.

Bladder Campion is tolerant of dry, calcareous, and sandy soils and performs well in full sun. The flowers are lightly scented and attract a range of pollinators, including bees and moths, making it a valuable component in wildflower mixes designed for biodiversity and habitat creation.

Features & Benefits
Distinctive white flowers with inflated calyx
Native UK perennial well-suited to dry soils
Attracts pollinators such as bees and moths
Excellent for meadows, roadsides, and field margins
Tolerant of drought and low-fertility soils

Latin Name:
Silene vulgaris

Flowering Time:
May – September

Flowering Height:
30 – 60 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
Choose a dry, free-draining site in full sun.
Clear the area of weeds and prepare a fine seedbed.
Broadcast seed evenly over the surface—do not cover deeply.
Lightly press the seed into the soil using a roller or by treading.
Water only if conditions are very dry during establishment.
For best results, reduce mowing in the first year to help establishment.

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.

Latin Name | Silene vulgaris

Flowering Time | May – September

Flowering Height | 30 – 60 cm

Life Cycle | Perennial

Sowing Rate | 2.75 kg per acre (6.8 kg per hectare)

Sowing Period | Spring (March – May) or Autumn (August – October)

Preferred Conditions | Dry, well-drained, low-fertility soils; full sun

Pollinator Friendly | Yes

Minimum Order Quantity | 10g

Ideal For | Meadows, field margins, roadside schemes, dry banks