Sow now › Hemel Hempstead (HP) › March
What to sow in March
in Hemel Hempstead (HP)
63 crops can go in this month. Typical last frost HP: about 1 May. First autumn frost about 30 October. This is the March page; jump to this month.
Sow in March
Ready to pick in March
Coming up in April
Basil, Broad Beans, Cabbage (Winter), Chard (Swiss Chard), Courgette, Cucumber, Dill, fennel bulb, Kale, Melon, Oregano, Pak Choi, Sage, Squash & Pumpkin, Sweetcorn, Thyme, Watercress, Watermelon. See the April page.
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 March in Hemel Hempstead (HP)?
63 crops go in this month in Hemel Hempstead (HP): Apple, Asparagus, Aubergine, Beetroot, Blackberry, Blackcurrant, Blueberry, Broccoli and more.
When is the last frost in Hemel Hempstead (HP)?
Typically around 1 May, with the first autumn frost about 30 October. Treat those as averages and watch the forecast; a cold spring can push them back a fortnight.
What's ready to harvest in March in Hemel Hempstead (HP)?
Apple, Cabbage (Spring), Cabbage (Winter), Kale.
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.