Sow now › South West London (SW) › May
What to sow in May
in South West London (SW)
44 crops can go in this month. Typical last frost SW: about 25 April. First autumn frost about 5 November. This is the May page; jump to this month.
Sow in May
Plant out in May
Sown earlier under cover, hardened off, and going in the ground once the last frost has passed.
Ready to pick in May
Your postcode
Type the first half of your postcode (NE12, SW1A) and you'll get the page for your area. Or a US ZIP and you'll get your zone.
Questions people ask
What can I sow in May in South West London (SW)?
44 crops go in this month in South West London (SW): Basil, Beetroot, Blueberry, Broccoli, Cabbage (Red), Cabbage (Winter), Calabrese, Carrot and more.
When is the last frost in South West London (SW)?
Typically around 25 April, with the first autumn frost about 5 November. Treat those as averages and watch the forecast; a cold spring can push them back a fortnight.
What's ready to harvest in May in South West London (SW)?
Asparagus, Cabbage (Spring), Coriander, Lettuce, Lettuce (Butterhead), Mizuna, Mustard Greens, Onion (Salad/Spring) and more.
Plan the plot, track every sowing, cook the harvest
Sowing reminders and harvest forecasts for your own frost dates, the Seed Tin, Scan Centre for any label or packet, and the Potty Mouth Garden Club. Free to start.
Allotment keeper in the North East of England, the voice behind the Tony C Smith YouTube channel, and the gardener who built GrowMore CookMore. Club numbers on this page update as members log their plots. Last updated 4 September 2026.