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Clay Soils 100% Wildflowers – JC8000

A native wildflower seed mix specially formulated for heavy clay soils with high water retention. Ideal for BNG delivery, development sites and long-term meadow creation.

Clay Soils 100% Wildflowers (JC8000) is a carefully balanced native wildflower seed mixture developed specifically for heavy clay soils with high water retention, including sites that are seasonally wet yet prone to drying and cracking during high summer heat.

Designed for long-term resilience, this mixture establishes a diverse, floristically rich meadow that performs reliably where free-draining mixes often fail. It is particularly well suited to infrastructure schemes, biodiversity net gain (BNG) delivery, farm diversification, estate management and conservation-led landscape design.

The species composition combines robust perennials with selected annuals and biennials to deliver early establishment, structural diversity and an extended flowering season from spring through to autumn. Once established, the sward supports a wide range of pollinators, farmland birds and invertebrates, while maintaining visual appeal and ecological function under variable moisture conditions.

JC8000 is ideal for new developments, roadside verges, floodplains, field margins, attenuation basins, parkland and low-input grassland creation, where soil conditions are challenging but biodiversity outcomes are a priority.

  • Seedbed Preparation: Create a fine, firm seedbed. Reduce compaction where possible and remove competitive weeds prior to sowing.
  • Sowing Time: Best sown in autumn or spring when soil moisture is reliable.
  • Sowing Rate: Apply evenly and roll lightly to ensure good seed-to-soil contact.
  • Establishment Year: Expect visible flowering from year one, with full meadow character developing over 2–3 seasons.
  • Management: Cut once or twice annually depending on objectives. Remove arisings to prevent nutrient build-up.
  • Long-Term Care: Avoid fertilisers and minimise disturbance to maintain botanical diversity.

Colours

Height  20–100cm depending on species and soil moisture
Usage BNG delivery, meadow creation, clay soil restoration, landscape schemes, field margins, attenuation areas, conservation grassland

Core species, colours and flowering period

Flower Col A M J J A S O
Lady’s Bedstraw – Galium verum
Betony – Stachys officinalis
Bird’s-foot-trefoil – Lotus corniculatus
Salad Burnet – Sanguisorba poterium
Meadow Buttercup – Ranunculus acris
White Campion – Silene latifolia
Wild Carrot – Daucus carota
Cowslip – Primula veris
Oxeye Daisy – Leucanthemum vulgare
Autumn Hawkbit – Leontodon autumnalis
Common Knapweed – Centaurea nigra
Musk Mallow – Malva moschata
Ribwort Plantain – Plantago lanceolata
Common Poppy – Papaver rhoeas
Ragged-Robin – Lychnis flos-cuculi
Selfheal – Prunella vulgaris
Common Sorrel – Rumex acetosa
Meadow Vetchling – Lathyrus pratensis
Yarrow – Achillea millefolium
Yellow-Rattle Or Hay-Rattle – Rhinanthus minor
Location overview Best suited to open sites on heavy clay soils, including low-lying areas, floodplains and sites with variable seasonal moisture. Performs well on both rural and urban land parcels.
Shade tolerance Prefers full sun to light partial shade. Reduced flowering may occur in dense shade.
Soil type Heavy clay soils, including compacted or seasonally wet clays.
Soil fertility Low to moderate fertility is ideal. Avoid enrichment or fertiliser application to maintain species diversity.
Moisture Tolerates waterlogged winter conditions and remains resilient through summer dry periods once established.

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