What to sow in London
The urban heat island effect gives London gardeners a head start — the city centre can be 2-3°C warmer than surrounding countryside, making it one of the mildest spots in the UK for growing. Space is the main challenge, but balconies, window boxes, and allotments are everywhere.
What to sow in London right now
Based on a last frost date of 19 April, these are the crops you can get going in London this month.
No crops to sow this month in London. Check back soon, or browse the full calendar.
London sowing calendar
Month-by-month sowing times for London, based on a last frost date of 19 April.
No sowing activity this month.
No sowing activity this month.
No sowing activity this month.
No sowing activity this month.
No sowing activity this month.
Get more precise dates for London
This guide uses the frost date for London city centre. Your exact frost date depends on your postcode — enter it below for personalised sowing dates, soil temperature, and frost forecasts.
All UK sowing guides
Browse all 50 city guides or use the postcode tool.