Growing grass from seed in the UK costs 70-80% less than turf and offers a wider choice of grass types. September is the best sowing month because soil temperatures sit at 12-15C with reliable autumn rainfall. The standard sowing rate is 35g per square metre. Perennial ryegrass germinates in 5-7 days while fine fescues take 14-21 days. A new lawn from seed is ready for regular use within 12-16 weeks of sowing.
Key takeaways
- September is the best month to sow grass seed, with soil temperatures of 12-15C and natural autumn rain
- The standard sowing rate is 35g per square metre for new lawns and 25g per square metre for overseeding
- Perennial ryegrass germinates in 5-7 days, fine fescues take 14-21 days
- Soil temperature must reach at least 8-10C for reliable germination
- A new lawn needs watering twice daily for the first 4-6 weeks if no rain falls
- Wait until grass reaches 7-8cm before the first cut, then mow at 5cm height
lawn grass seed lawn care sowing garden soil preparation overseeding
Our team produces practical UK gardening guidance from source research, contributor records and established horticultural practice. Editorial standards are overseen by Matt W.
