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Heavy Clay Soils Wildflower and Grass Seeds LW5M 80/20

A mixture of 24 UK Native wildflower seeds and grasses, best suited for heavy clay soils. Soils of this quality have a tendency to dry up in warmer seasons, so ensure that your meadow is well-watered in the first year as the perennial plants develop. From there, you’ll receive an easy-to-care-for and natural-looking wildflower meadow with a wide variety of attractive species that are recommended by the RHS as perfect for pollinators.

  • Contains 24 different flower species and 10 meadow grasses.
  • Sowing Rate: 5 grams per sq/m
  • 1kg covers 200sq/m

Mixture specifications, sowing instructions and maintenance can be found below.

Choose a packsize:
Mixture Specification
  Common Name Latin Name Quantity Flowers Height Type
1 Agrimony, Common Agrimonia eupatoria 2 Jun - Sep 50 - 150cm Perennial
2 Bedstraw, Lady's Galium verum 0.6 Jun - Sep 50 - 80cm Perennial
3 Betony Stachys officinalis 0.4 Jul - Sep 25 - 50cm Perennial
4 Black Medick Medicago lupulina 1.2 May - Oct 15 - 80cm Annual
5 Burnet, Salad Sanguisorba minor 1.4 Jun - Sep 15 - 50cm Perennial
6 Buttercup, Meadow Ranunculus acris 1 May - Jun 30 - 100cm Perennial
7 Campion, White Silene alba 0.6 May - Oct 50 - 100cm Perennial
8 Carrot, Wild Daucus carota 0.6 Jun - Oct 30 - 100cm Perennial
9 Clary, Wild Salvia verbenaca 0.6 May - Aug 30 - 40cm Perennial
10 Cowslip Primula veris 0.2 Apr - May 15 - 30cm Perennial
11 Daisy, Ox-eye Leucanthemum vulgare 0.6 May - Sep 20 - 100cm Perennial
12 Knapweed, Common Centaurea nigra 1.8 Jun - Sep 30 - 80cm Perennial
13 Knapweed, Greater Centaurea scabiosa 1 Jun - Sep 50 - 90cm Perennial
14 Meadowsweet Filipendula ulmaria 0.4 Jun - Aug 80 - 200cm Perennial
15 Plantain, Hoary Plantago media 0.4 May - Sep 15 - 45cm Perennial
16 Plantain, Ribwort Plantago lanceolata 0.6 Apr - Sep 15 - 50cm Perennial
17 Poppy, Common Papaver rhoeas 0.2 May - Jul 50 - 70cm Annual
18 Ragged Robin Lychnis flos-cuculi 0.8 May - Aug 30 - 90cm Perennial
19 Scabious, Field Knautia arvensis 1.6 Jul - Sep 30 - 200cm Perennial
20 Self-heal Prunella vulgaris 1 Jun - Sep 15 - 30cm Perennial
21 Sorrel, Common Rumex acetosa 1 May - Jul 30 - 100cm Perennial
22 Vetch, Tufted Vicia cracca 0.6 Jun - Sep 100 - 150cm Perennial
23 Yarrow Achillea millefolium 0.6 Jun - Oct 20 - 100cm Perennial
24 Yellow-rattle Rhinanthus minor 0.8 Jun - Sep 25 - 50cm Annual
  Bent, Common Agrostis castellana 4   50 - 100cm Grass
  Bent, Creeping Agrostis stolonifera 3.2   40 - 100cm Grass
  Crested Dogstail Cynosurus cristatus 17.6   30 - 60cm Grass
  Fescue, Chewings Festuca rubra, commutata 17.6   30 - 70cm Grass
  Fescue, Slender Creeping Red Festuca rubra, litoralis 16   10 - 20cm Grass
  Meadow Foxtail Alopecurus pratensis 2.4   70 - 110cm Grass
  Quaking Grass Briza media 1.6   22 - 45cm Grass
  Meadow Grass, Rough Stalked Poa trivalis 4   30 - 60cm Grass
  Meadow Grass, Smooth Stalk Poa pratensis 5.6   30 - 90cm Grass
  Timothy, Small Leaved Phleum pratense ssp Bertolinii 8   50 - 100cm Grass

BS5M Mixtue Contents

Sowing Instructions

How to sow wildflower seeds

  • Remove all weeds and debris.
  • If the area has been overtaken by weeds, it is important to reduce the number of weeds in the soil.
  • It may be necessary to allow time for the first flush of weeds to germinate and then remove them before attempting to sow wildflowers.
  • Wildflowers prefer poor soil with low nutrients and if it is practical to do so you could remove any good quality topsoil.
  • Prepare the soil to a fine tilth.
  • Try not to disturb the soil any further as this may bring more weed seeds to the surface.
  • Most wildflower seeds are best sown February to April and late August to October, with the ideal time being autumn. Avoid hot summer months.
  • It is advisable to mix the wildflower seed with a carrier (dry sand) to assist with sowing. This will help in distributing the seed evenly over a large area.
  • Sow pure wildflower mixtures (100%) at a rate of 3g/m2
  • Sow wildflower with grass mixtures at 5 g/m2
  • It should not be necessary to rake the seed over as the light helps germination on many species.

 

A few weeks after sowing, the seeds will begin to germinate. If you are using a wildflower seed mixture the growth of the different flowers (and grasses if you have them in the mix) will vary, so if grasses start to emerge first there's no need to worry. 

 

  • Annuals will flower the same year if sown during the spring or the previous autumn.
  • Perennial wildflower species will establish during the first year of sowing and flower during the second year.

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