Free tool
UK planting calendar
Choose a month to see exactly what to sow indoors, sow outdoors, plant out and harvest — then scan the whole-year view to plan the season ahead.
We default to the current month — change it to plan ahead.
Shifts frost-tender crops to suit your area, and shows your frost dates.
Add one or more crops to focus the calendar. Leave empty to show everything.
Dates are typical UK averages for guidance only. A frost-free spot, a greenhouse or a milder region lets you start earlier; a cold northern garden runs a few weeks behind.
What to do in March
39 jobs for the plot
Sow, plant and harvest jobs across our crop list.
Sow indoors
Plant out
⏳ means this is the last month to do that job — get it done before the window closes.
The whole year at a glance
Bars show each crop's sow / plant and harvest windows across the year. Scroll sideways on a small screen.
Sow, plant and harvest windows for each crop, month by month across the year.
Guidance for an average UK season. Always check the seed packet and your local frost dates — our Frost Date Checker helps you nail the safe window for tender crops.
🌱 Planned with Farm Simple · farmsimple.co.uk
Add to your calendar
Adds reminders for the crops shown — tip: filter to just your crops first. For Apple, Google or Outlook; nothing is uploaded.
Keep your plan
Print it, or save it as a PDF — your browser's print box does both (and on a phone you can share the PDF too). Nothing is uploaded.
How to use it
The calendar opens on the current month, so you can see today's jobs at a glance. Change the month dropdown to look ahead or back, and use the filter box to focus on a single crop — handy when you just want to know when to start your tomatoes or lift your garlic. Each crop appears as a tappable chip under the relevant heading, and many link straight to a full growing guide. Below the month view, the whole-year table colours every crop's active months so you can spot the busy spring and autumn windows at a glance. Your choices are saved in your browser, so the tool remembers where you left off next time.
How the calendar works
Each crop in our database carries typical UK month ranges for four activities: sowing indoors, sowing outdoors, planting out and harvesting. When you pick a month, the tool checks which of those windows that month falls inside and sorts every crop into the right column — a crop can appear in more than one, because you might be sowing one batch while harvesting an earlier one. These windows reflect an average British season; weather, soil, variety and your region all shift them. Gardens in the mild South West can run two to three weeks ahead of a Highland plot, and a greenhouse buys you extra time at both ends. Use the dates as a sensible starting point, then read the seed packet and watch the weather. To pin down the safe planting window for frost-tender crops, pair this with our Frost Date Checker.
Frequently asked questions
- What can I sow and plant this month in the UK?
- Pick the month at the top of the tool and it lists every crop you can sow indoors, sow outdoors, plant out or harvest right now. In spring the busy jobs are sowing tender crops like tomatoes and courgettes indoors; by autumn it shifts to planting garlic and harvesting roots and squash. The whole-year table shows how each crop moves through the seasons.
- Are these dates right for my part of the country?
- They are typical averages for a middle-of-the-road UK season, so treat them as guidance. A sheltered southern garden or a greenhouse lets you start a couple of weeks earlier, while a cold northern or upland plot runs a couple of weeks behind. Always cross-check your last frost date — our Frost Date Checker gives a safe window for tender crops by region.
- What is the difference between sowing indoors and sowing outdoors?
- Sowing indoors means starting seeds in trays or pots on a windowsill, in a heated propagator or in a greenhouse, then planting the young plants out once the risk of frost has passed. Sowing outdoors (direct sowing) means putting seeds straight into the soil where they will grow. Tender crops are usually started indoors; hardy roots and leaves are often sown direct.