Wildflower Mix for Heavy Clay Soils

Our Wildflower Mixture for Heavy Clay Soils contains a carefully selected blend of British native species which thrive in dense, moisture-retentive soils. 

Key features:

• Designed for clay-rich soils this mix tolerates extremes of soil conditions, from wet and claggy to dry and cracked ground
• Packed with pollinator favourites, this mix supports bees, butterflies, and hoverflies
• Adding seasonal variety, this mix flowers from late spring through to autumn for a long-lasting display
• UK native wildflower seeds 
• Excellent for ecological restoration, wildlife gardens, or naturalised areas

Common Knapweed (Centaurea nigra)
- Deep-rooted perennial for structure

Ribwort Plantain (Plantago lanceolata)
- Tap rooted and beneficial to insects

Meadow Buttercup (Ranunculus acris)
- Vibrant flower for bees and other early season pollinators

Bird's-Foot Trefoil (Lotus corniculatus)
- Supports pollinators and soil life

Cowslip (Primula veris)
- Early spring nectar source for emerging pollinators

Common Sorrel (Rumex acetosa)
- Supports caterpillars and soil biodiversity with edible leaves

Tufted Vetch (Vicia cracca)
- Fast-growing nitrogen fixer

Yarrow (Achilliea millefolium)
- Enhances microbial diversity

Yellow Rattle (Rhinanthus minor)
– Semi-parasitic; suppresses grasses to allow wildflowers to flourish.

White Campion (Silene latifolia)
– Evening-scented blooms; attracts moths and other nocturnal pollinators.

Selfheal (Prunella vulgaris)
– Low-growing; excellent nectar source for bees and butterflies.

Salad Burnet (Sanguisorba minor)
– Deep-rooted perennial; improves soil structure and drought resilience.

Ragged Robin (Silene flos-cuculi)
– Distinctive fringed pink flowers; thrives in damp meadows and supports pollinators.

Pepper-Saxifrage (Silaum silaus)
– A perennial of old meadows; supports a range of pollinators.

Oxeye Daisy (Leucanthemum vulgare)
– Iconic meadow flower; attracts a wide range of insects.

Musk Mallow (Malva moschata)
– Long-flowering; nectar for bees, hoverflies, and butterflies.

Meadowsweet (Filipendula ulmaria)
– Fragrant summer perennial; attracts bees and provides habitat for moth larvae.

Meadow Vetchling (Lathyrus pratensis)
– Nitrogen fixer; climbing plant that supports bees.

Lady's Bedstraw (Galium verum)
– Mat-forming; stabilises soil and provides nectar.

Greater Knapweed (Centaurea scabiosa)
– A robust, long-flowering plant loved by bees and butterflies.

Cow Parsley (Anthriscus sylvestris)
– Early-flowering umbellifer; supports a wide range of insects in spring.

Agrimony (Agrimonia eupatoria)
– Hardy perennial; supports pollinators and adds structure to meadows.

This mix is excellent for wildlife-friendly borders, field margins, habitat corridors, and garden naturalisation projects. It creates critical forage and breeding spaces for bees, butterflies, beetles, and birds. The diversity of flowering times ensures a long nectar season, supporting local ecosystems and increasing your garden’s environmental value.

Sow in autumn (September–November) or spring (March–May) into bare, weed-free soil. Clay soils may need light preparation so rake or break up the surface if heavily compacted. Avoid adding fertiliser, as wildflowers thrive in nutrient-poor conditions.

Scatter evenly and press the seeds lightly into the soil surface, but do not cover deeply as direct light is critical for germination. Water during dry spells in the early establishment phase, but avoid waterlogging. Full flowering often occurs in the second year, with increasing diversity and display over time.

Cut back in late summer after seed set to encourage regrowth and natural reseeding.

We offer a flat shipping rate of £5.99.

Garden lawn seed, wildflower seeds, and wildflower seed mixtures are typically dispatched within 1 to 3 working days.

Products from our agricultural, landscaping, and equine ranges may be shipped separately as they are mixed to order.

We aim to ensure customer satisfaction with all products supplied. If you experience any issues with your order, please contact us at info@kentseeds.co.uk within 5 working days of the dispatch date, quoting your order number and a detailed description of the issue.

Read our full Delivery & Returns policy here.

Q1: Can wildflowers really grow in clay soil?

A: Yes, this mix is specifically designed for heavy clay. It includes robust native species that tolerate wetter, denser soils.

Q2: Will I get flowers in the first year?

A: Yes, some of the perennials may flower in year one, but the display and diversity typically peak from year two onwards.

Q3: Do I need to prepare the soil?

A: For best results, clear existing vegetation and lightly break up the top layer to reduce compaction, especially in heavy clay areas.

Q4: Will this attract bees and butterflies?

A: Absolutely, this mix includes high-nectar species that are magnets for pollinators throughout the growing season.