Lawn Seed & Feed Application Rates
Whether you're sowing a brand new lawn, overseeding bare patches, or feeding an established one, getting the application rate right makes all the difference. Too little seed leaves gaps; too much causes overcrowding and disease. This guide covers the rates you need for UK lawns.
Lawn Seed Application Rates
| Seed Type / Purpose | Rate (g/m²) | Best Time to Sow | Notes |
|---|---|---|---|
| New lawn — standard mix | 35–50 | Apr–May or Sep | Most common general-purpose mix |
| New lawn — fine / ornamental | 25–35 | Apr–May or Sep | Fescue-heavy; finer leaf, less traffic |
| New lawn — hard-wearing / family | 35–50 | Apr–May or Sep | Ryegrass-heavy; tolerates heavy use |
| New lawn — shade tolerant | 35–50 | Apr–May | For areas under trees or north-facing |
| Overseeding (existing lawn) | 15–25 | Sep–Oct or Apr | Half the new lawn rate |
| Patch repair | 35–50 | Apr–Oct | Full rate on bare soil |
| Wildflower meadow | 3–5 | Sep–Oct or Mar | Much lower rate; mix with sand for even spread |
September is considered the best month for sowing in most of the UK — the soil is warm and autumn rain aids germination.
Fertiliser Application Rates
| Product Type | Rate (g/m²) | When to Apply (UK) | Notes |
|---|---|---|---|
| Spring / summer lawn feed | 35–70 | Mar–Sep | High nitrogen for green growth |
| Autumn / winter lawn feed | 35–70 | Sep–Nov | High potassium for root strength |
| Weed & feed combined | 35–70 | Apr–Sep | Apply when weeds are actively growing |
| Granular iron sulphate (moss killer) | 10–15 | Oct–Mar | Dissolve in water or apply granular |
| Lime (to raise pH) | 50–100 | Nov–Feb | Only if soil test shows low pH |
Always follow the manufacturer's specific rate — these are general guidelines. Over-application burns the lawn.
Calculate Seed & Feed Quantities
For exact amounts based on your lawn size, use our free calculators:
- Lawn & Turf Calculators — lawn seed quantity, turf calculator, fertiliser amounts and more
Application rates vary by brand and formulation. Always check the product label. Avoid feeding in drought or frost. Water well after applying granular products if no rain is expected within 48 hours.