The Nettle-Leaved Bellflower is a striking, native perennial wildflower known for its deep violet, bell-shaped flowers and tall, upright growth habit. Flourishing in semi-shade and nutrient-rich soils, it’s an ideal choice for woodland edges, hedgerows, and wildlife-rich planting schemes. With its long flowering period from mid-summer into early autumn, this species provides a valuable nectar source for bees, butterflies, and other pollinators.
Its coarse, nettle-like leaves give the plant its common name, but unlike true nettles, this bellflower is non-stinging and highly ornamental. It adds height, texture, and vivid colour to conservation projects, cottage gardens, and wildflower borders. Left undisturbed, it will happily self-seed and naturalise to form part of a resilient and biodiverse planting palette.
All seed is carefully sourced through John Chambers Wildflower Seeds, with over 35 years of supplying trusted, UK-native wildflowers for landscape professionals, conservationists, and rewilding schemes. This ensures provenance, performance, and reliability in every sowing.
Features & Benefits
Striking violet-blue bell-shaped flowers
Valuable nectar source for pollinators
Native UK wildflower ideal for shaded habitats
Tolerates a range of soils and naturalises easily
Adds height and texture to borders and mixes
Supports biodiversity and habitat creation
Latin Name:
Campanula trachelium
Flowering Time:
June – September
Flowering Height:
50 – 100 cm
Life Cycle:
Perennial
Wildflower Seed Approximate Sowing Rate:
1g per m² (10kg per hectare)
Sowing Times:
Best sown in spring (March–May) or autumn (August–October)
Germination improves when sown in cooler, moist conditions
How to Sow & Preparation
Choose a well-drained site with partial shade or dappled sunlight.
Clear the area of weeds and lightly cultivate the soil.
Broadcast the seed evenly by hand or using a seed spreader.
Do not bury the seed – rake in gently or firm with a roller for surface contact.
Water during dry spells until established.
Avoid fertilisers, which can encourage competitive grasses.
About John Chambers Wildflower Seeds
John Chambers Wildflower Seeds is one of the UK’s most established suppliers of native wildflower seeds, with over three decades of expertise supporting conservation and landscaping schemes. Their seeds are of UK-native origin, carefully tested for quality, and widely used by councils, landscape contractors, and ecological professionals across the country.

Attribute Detail
Latin Name Campanula trachelium
Flowering Time June – September
Flowering Height 50 – 100 cm
Life Cycle Perennial
Sowing Rate 1g per m² (10kg per hectare)
Sowing Period Spring or Autumn
Preferred Conditions Semi-shade, well-drained, fertile soils
Pollinator Friendly Yes
Minimum Order Quantity 100g
Suitable For Woodland edges, shaded borders, habitat planting, rewilding, hedgerows