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Heavy Clay Soils Wildflower Seeds LW5P 100%

Heavy Clay and Wet Soils Wildflower Seeds LW5P 100%

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100% Native Wildflower Species

Heavy Clay Soils Wildflower Seeds LW5P 100%

This mix of wildflowers seeds is selected specifically for use on heavy clay soils, filled with beautiful perennials which will form a magnificent wildflower meadow year after year. This wildflower mix for heavy clay soils features medium-to-tall, nectar-rich wildflowers such as the star-shape scabious and the thin, winding meadowsweet.

Contains 24 different native wildflower species
Sowing Rate: 3 grams per sq/m
1kg covers 330sq/m

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

More information...

Choose a packsize:

10g Covers 3m² £6.00 50g Covers 15m² £12.00 100g Covers 30m² £21.00 250g Covers 75m² £48.00 1kg Covers 300m² £160.00

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Mixture Specification

	Common Name	Latin Name	Quantity	Flowers	Height	Type
1	Agrimony, Common	Agrimonia eupatoria	10%	Jun - Sep	50 - 150cm	Perennial
2	Bedstraw, Lady's	Galium verum	3%	Jun - Sep	50 - 80cm	Perennial
3	Betony	Stachys officinalis	2%	Jul - Sep	25 - 50cm	Perennial
4	Black Medick	Medicago lupulina	6%	May - Oct	15 - 80cm	Annual
5	Burnet, Salad	Sanguisorba minor	7%	Jun - Sep	15 - 50cm	Perennial
6	Buttercup, Meadow	Ranunculus acris	5%	May - Jun	30 - 100cm	Perennial
7	Campion, White	Silene alba	3%	May - Oct	50 - 100cm	Perennial
8	Carrot, Wild	Daucus carota	3%	Jun - Oct	30 - 100cm	Perennial
9	Clary, Wild	Salvia verbenaca	3%	May - Aug	30 - 40cm	Perennial
10	Cowslip	Primula veris	1%	Apr - May	15 - 30cm	Perennial
11	Daisy, Ox-eye	Leucanthemum vulgare	3%	May - Sep	20 - 100cm	Perennial
12	Knapweed, Common	Centaurea nigra	9%	Jun - Sep	30 - 80cm	Perennial
13	Knapweed, Greater	Centaurea scabiosa	5%	Jun - Sep	50 - 90cm	Perennial
14	Meadowsweet	Filipendula ulmaria	2%	Jun - Aug	80 - 200cm	Perennial
15	Plantain, Hoary	Plantago media	2%	May - Sep	15 - 45cm	Perennial
16	Plantain, Ribwort	Plantago lanceolata	3%	Apr - Sep	15 - 50cm	Perennial
17	Poppy, Common	Papaver rhoeas	1%	May - Jul	50 - 70cm	Annual
18	Ragged Robin	Lychnis flos-cuculi	4%	May - Aug	30 - 90cm	Perennial
19	Scabious, Field	Knautia arvensis	8%	Jul - Sep	30 - 200cm	Perennial
20	Self-heal	Prunella vulgaris	5%	Jun - Sep	15 - 30cm	Perennial
21	Sorrel, Common	Rumex acetosa	5%	May - Jul	30 - 100cm	Perennial
22	Vetch, Tufted	Vicia cracca	3%	Jun - Sep	100 - 150cm	Perennial
23	Yarrow	Achillea millefolium	3%	Jun - Oct	20 - 100cm	Perennial
24	Yellow-rattle	Rhinanthus minor	4%	Jun - Sep	25 - 50cm	Annual

LW5P Mixtue Contents

Sowing Instructions

Prepare the Ground
Our Heavy Clay Soils Wildflower Seed Mix performs best in low nutrient soils, which haven’t been heavily fertilised in the past. For best results sow into bare soil after clearing all existing plants and weeds from the area.

Cultivate the ground to a depth of 10cm to relieve compaction and create a fine level tilth, free from obstructions (to allow for mowing at a later stage). Finish the seedbed by treading or lightly rolling the area, so that it is firm enough to stand on without leaving indentations.

Where weeds have been prevalent, allow a flush of weeds to germinate and remove these before sowing. In areas of high fertility, it may be necessary to remove the topsoil and sow into the subsoil. High nutrient soils encourage weeds and fast growing grasses which may outcompete the wildflowers in this mixture.

Heavy Clay Soils Wildflower Seeds can be used to overseed into existing grassland, provided the sward comprises only fine leaved grasses and does not include ryegrass, agricultural species or weeds. Cut the grass as short as possible and thoroughly scarify or rake the ground to remove any thatch, moss and other debris from the area.

Sowing
Heavy Clay Soils Wildflower Seeds should be sown between March and November. Spring and autumn provide ideal conditions as moisture and warmth are in good supply. If overseeding into grass, it is best to sow during autumn when grass growth has slowed down.

Distribute seed at the recommended sowing rate of 3g/sqm.

If possible, mix the wildflower seeds with an inert carrier (such as sharp sand), at a ratio of four parts sand to one part seed (by weight). This makes it easier to achieve an even distribution and also provides a visual marker, making it easier to see any missed patches and avoid seeding areas twice.

Regularly mix the seed when sowing, as seeds will naturally separate due to variations in size and weight.

Once sown, ensure good ‘seed to soil’ contact by lightly raking to a depth of 0.5cm or rolling the area. When overseeding this encourages the seeds to fall down to the ground underneath.

It is also possible to broadcast, drill or hydroseed this mixture for larger or hard to reach areas. However, broadcast spreading throws heavier seeds further so this may impact the distribution and when drilling, the seed must not be buried deeper than 0.7cm.

Sowing Rate
The sowing rate of 3g/sqm is designed to produce optimum results. Reducing the sowing rate is likely to result in invasion from weed species. Increasing the sowing rate generally leads to reduced diversity as the more aggressive species will outcompete slower growing plants.

This rate also applies when overseeding into grassland as many seeds may fail to germinate due to the increased competition from the existing grasses, and some seeds not reaching the soil surface.

Maintenance

First Year
BS5P contains mainly perennial species, which can be slow to establish and are unlikely to flower in the first year. Annual species such as Black Medick, Red Poppy and Yellow Rattle will generally flower in year one.

During the first year remove any weeds which grow before they run to seed, either by topping, mowing or by hand for smaller areas. Weed growth is common due to the action of disturbing the ground (rather than being caused by contaminated seed mixtures).

The area can be cut once the flowers have died back in the autumn. We recommend leaving the area undisturbed for as long as possible, ideally until February / March (before the first
spring growth). The dead flowers and stems provide a diverse environment which is a haven for wildlife through the winter months. In particular, it provides habitat for butterflies such as
the Red Admiral and the Clouded Yellow which remain in their chrysalis during the winter months.

Cut the area down to around 10cm using a scythe, strimmer or mower, leaving the cuttings for up to a week before removing. This will allow them to dry and shed seeds back into the soil.

Second Year
After twelve months the sward should be well established and requires little additional maintenance. Simply follow the same annual cut pattern (either in spring or autumn
depending on your preference).

As an ongoing process, observe and remove any weeds which invade the area.

Over time, some species within the mixture may become more dominant due to environmental factors and natural selection. To encourage diversity, simply reduce the number of dominant plants in order to restore the balance.

Overseeding
If overseeding into grassland, we recommend incorporating at least two 10cm cuts each year; at the beginning of March and November. This reduces the grass canopy, allowing light
and air to reach the wildflowers and encourage growth. Where aggressive grasses are dominating, it may be necessary to employ a more regular cutting regime to ensure the
wildflowers are not smothered.

UK Native Wildflower Seeds

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About Us

Landlife Wildflowers grow and supply high-quality, native wildflower products, restoring wildflowers right across the UK. Working in conjunction with wildlife charity, Buglife, we’re bringing back Britain’s treasured wildflowers! Find out more about why we’ve been trusted by the general public, Natural England and The National Trust for over twenty years.

Heavy Clay Soils Wildflower Seeds LW5P 100%

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