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SuDs Mix 70/30 Meadow Wildflowers – JC3556

A 70/30 grass and wildflower mix for SuDS schemes. Ideal for swales, attenuation basins and rain gardens with seasonal wet and dry conditions.

SuDS Mix 70/30 Meadow Wildflowers (JC3558) is a robust grass and wildflower seed mixture specifically designed for Sustainable Drainage Systems (SuDS). Combining 70% carefully selected grasses with 30% native wildflowers, this mix provides excellent ground stability, rapid establishment, and long-term ecological performance in sites subject to extreme moisture variation.

Designed for use in swales, attenuation basins, rain gardens, and water management landscapes, JC3558 tolerates waterlogged soils during winter and remains resilient through dry summer periods once established. The grass component ensures structural integrity and erosion control, while the wildflowers deliver seasonal colour, biodiversity value, and pollinator support.

JC3558 is ideal for developers, civil engineers, landscape architects, BNG partners, and local authorities, where hydrological performance, visual quality, and ecological outcomes must align within SuDS infrastructure.

  • Seedbed Preparation: Prepare a fine, firm seedbed. Remove aggressive weeds and reduce compaction where possible.
  • Sowing Time: Best sown in spring or autumn when soil moisture is reliable.
  • Sowing Rate: Broadcast evenly and roll lightly to ensure good seed-to-soil contact.
  • Establishment: Grasses establish quickly to stabilise soils; wildflowers flower from year one. Full diversity develops over 2–3 seasons.
  • Management: Cut once or twice annually depending on SuDS design objectives. Remove arisings to prevent nutrient build-up.
  • Long-Term Care: Avoid fertiliser inputs and excessive disturbance to maintain species balance and biodiversity value.

Colours

Height 20–150cm depending on species and moisture conditions
Usage SuDS swales, attenuation basins, rain gardens, floodplain planting, BNG delivery, wetland conservation, low-input ecological landscaping

Core species, colours and flowering period

 

Flower Col A M J J A S O
Bird’s-foot-trefoil – Lotus corniculatus ✔ ✔ ✔ ✔ ✔ ✔
Great Burnet – Sanguisorba officinalis ✔ ✔ ✔ ✔
Salad Burnet – Sanguisorba poterium ✔ ✔ ✔ ✔
Creeping Buttercup – Ranunculus repens ✔ ✔ ✔ ✔ ✔ ✔ ✔
Meadow Buttercup – Ranunculus acris ✔ ✔ ✔ ✔ ✔
Oxeye Daisy – Leucanthemum vulgare ✔ ✔ ✔ ✔ ✔
Fleabane; Common – Pulicaria dysenterica ✔ ✔ ✔ ✔
Gypsywort – Lycopus europaeus ✔ ✔ ✔
Autumn Hawkbit – Leontodon autumnalis ✔ ✔ ✔ ✔ ✔
Hedge Bedstraw – Galium mollugo ✔ ✔ ✔ ✔
Iris; Yellow/Flag – Iris pseudacorus ✔ ✔ ✔ ✔
Lady’s Bedstraw – Galium verum ✔ ✔ ✔
Meadowsweet – Filipendula ulmaria ✔ ✔ ✔ ✔ ✔
Purple; Loosestrife – Lythrum salicaria ✔ ✔ ✔
Ribwort Plantain – Plantago lanceolata ✔ ✔ ✔ ✔ ✔ ✔ ✔
Devil’s-bit Scabious – Succisa pratensis ✔ ✔ ✔ ✔
Selfheal – Prunella vulgaris ✔ ✔ ✔ ✔
Yellow-Rattle Or Hay-Rattle – Rhinanthus minor ✔ ✔ ✔

 

Location overview Best suited to SuDS features and water-sensitive landscapes, including swales, basins, rain gardens, and seasonal wetland margins. Performs well in urban infrastructure projects and rural flood management schemes.
Shade tolerance Prefers full sun to partial shade. Reduced flowering may occur under heavy shade.
Soil type Adapted to soils that experience winter waterlogging and summer drying, including compacted or engineered SuDS substrates.
Soil fertility Low to moderate fertility is ideal. High fertility can favour grasses and reduce wildflower diversity.
Moisture Highly tolerant of seasonal waterlogging and summer drought conditions once established.

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