wilko wildflower seeds 100% General Purpose Wildflower Meadow Seed Mix

Sowing of Wildflower seeds can take place through most of the year (bar the depths of winter). But generally, the most successful time is August to October (following natures natural cycle) and then by March to April.

General Purpose Wildflower Seed Mix can be used to overseed into existing grass, provided the sward comprises only fine leaved grasses and does not include ryegrass, agricultural species or weeds.

Existing Grass
Firstly mow the grass area very short. Using a rake or harrow, the grass then needs to be raked to remove the thatch (the layer of dead grass and moss that builds up on the soil surface). If necessary, then use a 3 pronged hoe to break up the soil surface. This ‘scarification’ is really important; the seed must be able to reach the soil surface. Aim for at least 50% bare soil, preferably more - as Monty says you need to beat the hell out of the grass! Broadcast the seed at a rate of 2gm per sq metre (The seed can be mixed with sharp sand to ensure a more even spread). Walk over the seeded area ensuring that the total ground is walked upon. This is to ensure that the seeds are in contact with the soil, which is vital for germination.

Seedbed
General Purpose 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. 

Year 1
Perennial species can be slow to establish and are unlikely to flower in the first year. Annual species will generally flower in year one. During the first year remove any weeds which grow before they run to seed. Weed growth is common due to the action of disturbing the ground. 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. 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.

Year 2
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. 

Germination of wildflower seeds can be erratic and some species require vernalisation before germination in spring of the following year, e.g. a period of prolonged cold temperatures.

Be aware that it can take several years for the meadow to become established, patience is required, just as in nature!

Hypericum perforatum

30-90

Yellow

June-Sep

Malva moschata

20-80

Pink

July-Oct

Lychnis flos-cuculi

30-80

Red

May-June