South UK Gardening Guide
Southern England has the UK's longest and mildest growing season. Here's how to make the most of it.
Growing advice verified against RHS guidance by the SoilCommander Growing Team.
8–9 months
Growing season in southern England
Mid-April
Average last frost in the south
Late Feb
When outdoor sowing can begin
Advantages of the Southern Season
- Outdoor sowing can start from late February for cold-tolerant crops under cloches
- Tender crops (tomatoes, courgettes, beans) can go outside from late May
- Long summers allow outdoor tomatoes to ripen fully — choose longer-season varieties
- Overwintering crops (garlic, broad beans, spring cabbages) establish more reliably
- Hardy crops (leeks, kale, parsnips) can be harvested right through to April
Summer Challenges to Plan For
- Heat and drought: July and August bring dry spells; water regularly at the base of plants and mulch well
- Blight risk: warm, humid summers favour potato and tomato blight; monitor the Blightwatch alerts and choose resistant varieties
- Bolting: lettuce, spinach, and radishes bolt quickly in heat; choose bolt-resistant varieties and sow in shadier spots in midsummer
See also: North of England Gardening Guide · Scotland Gardening Guide · UK Regional Gardening
Last updated 22 July 2026
Relevant next steps
Match The Season To The Work
Seasonal jobs come down to timing, soil care, and keeping a simple record of what needs doing next.
Plan the next step
Use the printable SoilCommander planner for your region to turn this guide into sowing dates, bed layouts and weekly garden tasks.