The Pro Calcareous Soils 100% Mix Wildflower Seed is specifically designed for soils with a higher pH, such as chalky or alkaline soils. This 100% wildflower mix is perfect for creating vibrant, biodiverse meadows in areas where the soil conditions are naturally calcareous. The carefully selected species in this mix, including Selfheal, Common Poppy, and Wild Carrot, are all well-suited to thrive in the unique conditions found in these soils.
Ideal for creating natural, wildlife-friendly habitats, this wildflower mix is well-suited for areas like field margins, road verges, meadows, and parklands. It provides a rich display of colour, supports pollinators, and enhances biodiversity in calcareous environments. This professional-grade mix is perfect for councils, landscapers, farmers, and landowners looking to create sustainable, low-maintenance wildflower habitats.
Features & Benefits
100% wildflower mix specifically formulated for calcareous (alkaline) soils
Supports a wide range of pollinators, including bees, butterflies, and other beneficial insects
Long-lasting beauty with a range of perennial species, including Selfheal and Bird’s-foot-trefoil
Perfect for creating diverse, low-maintenance meadows and grassland habitats
Great for road verges, field margins, and chalky areas
Example Wildflower Species in the Mix
Selfheal (Prunella vulgaris) – Low-growing perennial with purple flowers, known for its medicinal properties
Dropwort (Filipendula vulgaris) – Delicate, white flowers that thrive in calcareous conditions
Common Vetch (Vicia sativa) – Nitrogen-fixing legume that enriches soil and attracts pollinators
Wild Carrot (Daucus carota) – Umbellifer with white flowers, attracting beneficial insects
Bird’s-foot-trefoil (Lotus corniculatus) – Bright yellow flowers, provides nectar for pollinators and enriches soil
Common Poppy (Papaver rhoeas) – Vibrant red flowers that are iconic in wildflower meadows
Please note: Wildflower seed mixes may vary depending on seasonal availability and harvest. Additional species may be included.
Applications
Road verges and embankments on calcareous soils
Field margins and farmland
Parkland, meadows, and green spaces in chalky areas
Wildflower corridors and biodiversity habitats
Eco-friendly landscaping projects for pollinator support
Sowing Rate & Timing
Recommended sowing rate: 3g per m²
Minimum order: 100g
Sowing windows:
Spring: March to May
Autumn: August to October
How to Sow Wildflower Seed Mixes
Prepare the site by clearing any existing vegetation and weeds.
Mix seed with sand for even distribution.
Sow evenly at the recommended rate (5g per m²) using a broadcast method.
Firm the seedbed by lightly rolling or treading to ensure good seed-to-soil contact.
Water as needed if conditions are dry.
Avoid using fertilisers, as wildflowers thrive in nutrient-poor soils.
About John Chambers Wildflower Seed
With over 35 years of experience, John Chambers Wildflower Seed is a leader in the UK’s wildflower seed industry. Their Pro Calcareous Soils 100% Mix Wildflower Seed is expertly crafted to create sustainable, biodiverse habitats, enhancing landscapes and supporting native wildlife. This professional-grade wildflower mix is trusted by landscapers, councils, and landowners across the UK.

Seed composition: 100% Wildflowers
Minimum order: 100g
Sowing rate: 3g per m²
Sowing windows: Spring (Mar–May) or Autumn (Aug–Oct)
Soil suitability: Calcareous (alkaline) soils, including chalky areas
Brand: John Chambers Wildflower Seed – Professional Range