Heavy Clay Soils Wildflower Mix 1kg

SKU: 190851

Sale price£51.55 ex. VAT
£61.86 inc. VAT
(minimum of 1)


The heavy clay soils wildflower mix is perfect for soils which tend to be more water and nutrient retentive due to a high proportion of clay particles. The mix contains species which are better adapted to growing in the moist conditions that can be generated in clay soils.

*Please Note: The contents of our wildflower mixtures will vary according to seed and species availability.

Product Summary

Type of Mix Main flowering period Sowing Rate Bag Weight Bag Coverage
20% wildflower & 80% grass June - September 5 g/m2 1 kg 200 m2



Scientific Name Common Name 80/20 mix
Achillea millefolium Yarrow 0.6%
Agrimonia eupatoria Agrimony 2.0%
Centaurea nigra Common knapweed 1.8%
Centaurea scabiosa Greater knapweed 1.0%
Daucus carota Wild carrot 0.6%
Filipendula ulmaria Meadowsweet 0.4%
Galium verum Lady's bedstraw 0.6%
Knautia arvensis Field scabious 1.6%
Leucanthemum vulgare Oxeye daisy 0.6%
Medicago lupulina Black medic 1.2%
Papaver rhoeas Corn poppy 0.2%
Plantago lanceolata Ribwort plantain 0.6%
Plantago media Hoary plantain 0.4%
Poterium sanguisorba Salad burnet 1.4%
Primula veris Cowslip 0.2%
Prunella vulgaris Selfheal 1.0%
Ranunculous acris Meadow buttercup 1.0%
Rhinanthus minor Yellow rattle 0.8%
Rumex acetosa Common sorrel 1.0%
Salvia verbenaca Wild clary 0.6%
Silene flos-cuculi Ragged robin 0.8%
Silene latifolia White campion 0.6%
Stachys officinalis Betony 0.4%
Vicia cracca Tufted vetch 0.6%


Scientific Name Common Name 80/20 mix
Agrostis capillaris Common bent 4.0%
Agrostis stolonifera Creeping bent 3.2%
Alopecurus pratensis Meadow foxtail 2.4%
Briza maxima Quaking grass 1.6%
Cynosaurus cristatus Crested dogstail 17.6%
Festuca rubra Slender creeping red fescue 16.0%
Festuca rubra ssp commutata Chewings fescue 17.6%
Phleum pratense Timothy 8.0%
Poa pratensis Smooth meadow grass 5.6%
Poa trivialis Rough meadow grass 4.0%

Application Recommendations

Where to use

Soil pH Soil Types Soil Fertility Topography Soil moisture
5.5 - 7.5 Clay loams
Low-moderate nutrient Lowland Poorly drained

When to use

In general, the best time for sowing perennial wildflower seeds is late summer/autumn (late August-October) when there is likely to be consistent moisture and warmth without extremes of cold or dry. Spring (late March-May) is usually considered the next best time to sow perennial wildflower seed, particularly if the ground is likely to be waterlogged over the winter.

Application Window
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

How to use

Prepare the ground
New Seed Bed Overseeding
Remove unwanted vegetation

Cultivate the soil to a depth of 150 mm removing the stones and debris

Level, then firm the seedbed

Rake the surface to product a fine tilth
Cut the grass short as possible and remove the clippings

Remove excess thatch to allow the seed to reach the soil surface

If compacted, aerate the soil
Provide water
If there has been little rainfall irrigate gently and slowly to fully wet through the soil profile
Sow seed
Sow seeds evenly using the correct sowing rate for the seed mix

Because sowing rates for wildflower seed are low, it is usually helpful to mix the seed with a carrier material such as slightly damp sand

Press the seeds into the soil using a roller or the back of a rake to ensure good seed to soil contact
Provide water
Keep the soil surface moist but not wet until the seeds have germinated AND established

Irrigate slowly and gently to avoid disturbing the seeds

Management & aftercare

Livestock grazing

Grazing with livestock is an effective method of managing wildflower meadows and grasslands because it creates uneven growth and distribution of species which leads to habitat niches. Grazing is also a good option in areas where it is difficult to utilise machinery, perhaps because it is too wet or because the ground is too rough.

Suggested grazing regime
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Graze if ground conditions allow Remove livestock to allow the plants to flower Graze with between 0.4-1 LU/ha


Mowing and removing the clippings can be used to replicate the process of hay cutting and grazing. It is important to remove clippings to avoid nutrients being returned to the soil. Soils for wildflowers are usually low in nutrients to encourage species diversity.

Suggested mowing regime
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Leave uncut unless growth is vigorous Cut and collect clippings Allow to flower and seed Cut and collect clippings Leave uncut unless growth is vigorous

For further information regarding the Heavy clay soils wildflower mix or to discuss placing a bulk order, please contact our technical sales team on 01952 897917.

Find more information in our guide How To Create and Maintain Wildflower and Ornamental Flowering Meadows

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