The John Chambers Pro Clay Soils 80/20 Grass & Wildflower Seed Mix is expertly crafted for professional use, providing a high-quality 80/20 mix of native wildflowers and low-maintenance grasses. Designed specifically for clay soils, this mix offers a versatile solution for creating vibrant, biodiverse wildflower meadows across a range of environments, including parks, roadsides, and open spaces. The 80% grass content ensures robust growth, stability, and low maintenance, while the 20% wildflower blend adds seasonal colour and supports pollinators, providing essential habitat and food sources for wildlife.

This mix is ideal for professional landscapers, councils, and landowners looking to enhance biodiversity, restore meadows, or create sustainable green spaces. The wildflowers included in this mix, such as Betony, Meadow Vetchling, Salad Burnet, Yellow Rattle, Common Sorrel, and Meadow Buttercup, are carefully selected for their compatibility with clay soils and ability to thrive in diverse conditions. The seeds are UK native, ensuring they provide lasting ecological value in both rural and urban settings.

Features & Benefits
Tailored for clay soils – thrives in heavy, moisture-retentive ground
80/20 mix – 80% low-maintenance grasses, 20% UK native wildflowers
Boosts biodiversity, offering habitat and nourishment for pollinators
Long-lasting, low-maintenance solution for professional landscapers and councils
Suitable for a range of applications, including gardens, open spaces, roadsides, and farmland

Example Wildflower Species in the Mix
Betony (Stachys officinalis) – a valuable nectar source for bees and butterflies
Meadow Vetchling (Lathyrus pratensis) – enhances plant diversity and supports nitrogen fixation
Salad Burnet (Sanguisorba minor) – early-flowering and highly attractive to pollinators
Yellow Rattle (Rhinanthus minor) – parasitic wildflower that helps reduce dominant grasses, fostering more wildflowers
Common Sorrel (Rumex acetosa) – adds a touch of tangy flavour and is beneficial for wildlife
Meadow Buttercup (Ranunculus acris) – iconic yellow flowers that brighten meadows and attract pollinators
Note: Wildflower seed mix contents may vary based on seasonal availability and harvest conditions. Additional species may be included beyond those listed above.

Applications
Perfect for creating wildflower meadows in:
Public spaces such as parks, road verges, and open spaces
Set-aside farmland, field margins, and hedgerows
Riverbanks and wildlife corridors
Domestic gardens and large estates
Conservation projects and urban greening

Sowing Rate & Times
Sowing rate: 5g per m²

Best sowing times:
Autumn (August–October) – allows for natural rainfall to support germination
Spring (March–May) – optimal for frost-free soil conditions

How to Sow Wildflower Seed Mixes
Prepare the seedbed by clearing the ground of existing vegetation and lightly cultivating the soil to a depth of 5–10cm.
Rake the soil to create a fine, level seedbed, ensuring good seed-to-soil contact.
Mix seeds with sand for even distribution and sow at the recommended rate (5g per m²).
Press seeds into the soil with a roller or gentle pressure—do not cover with soil.
Water if necessary; otherwise, let natural rainfall assist in the germination process.

About John Chambers Wildflower Seed
John Chambers Wildflower Seed has been a trusted supplier for over 35 years, offering the UK’s most extensive range of native wildflower seeds. The Pro Clay Soils Mix is part of the Professional Range, developed to provide high-performance and low-maintenance solutions for landscapers, councils, and environmental projects. This carefully formulated mix supports sustainable biodiversity and pollinator health, while meeting industry standards for conservation and habitat restoration.

Seed Mix Type | 80% Low-maintenance grasses, 20% native wildflowers

Soil Type | Clay-rich, moisture-retentive soils

Wildflower Origin | UK native species

Sowing Rate | 5g per m²

Sowing Seasons | Spring (Mar–May) or Autumn (Aug–Oct)

Main Wildflower Species | Betony, Meadow Vetchling, Salad Burnet, Yellow Rattle, Common Sorrel, Meadow Buttercup

Brand | John Chambers Wildflower Seed – Professional Range