When To Plant Vegetables?
Planting vegetables is probably the second most exciting time of the year – the first being harvesting them! However, knowing when to plant vegetables can make a big difference to the chances of success.
The difficulty is that the best time to plant vegetables is likely to change each year, based not only on the weather at time of planting, but also the temperature, rainfall, and light levels over the subsequent days and weeks.
An experienced gardener builds up local knowledge of when to plant vegetables on their patch, but even the best get caught out by a late frost or heat wave. Nevertheless, it is possible to describe an outline of what works well for each vegetable, and this is shown in the guide below.
We hope our When To Plant Vegetables Guide helps you, and we wish you the best of luck with your growing! See our vegetable growing guides here.
When To Plant Vegetables Guide
Tip: try searching to check a particular vegetable.
Winter Hardy Vegetable
Semi Hardy Vegetable
Slow Growing Summer Vegetable
Fast Growing Summer Vegetable
Best In Greenhouse
|Possible to overwinter or keep in situ.||Germinate outside in spring or frost tolerant.||Germinate indoors / under cover.||Outdoor germination possible.||But outdoor possible if sunny & sheltered site.|
|Artichokes (Globe)||Perennial plants - 5 year life.|
Plant suckers (offsets) March / April. Harvest from year 2 June / July.
|Artichokes (Jerusalem)||Invasive - best grown in tubs.|
Sow February / April. Harvest from October through winter.
|Asparagus||Perennial - 15+ years life. Plant dormant crowns March / April.|
|Aubergines||Plant February / March. Seeds may benefit from 24hr soaking before planting. Air temp 21oC+. Harvest late summer.|
|Beetroot||Plant from late March onwards. Check variety characteristics. Delay in cold weather. Harvest summer onwards.|
|Broad Beans||Some varieties can overwinter: plant October / November. Harvest late May / June.|
May fail in cold winters.
|Alternatively, plant from February / April. Delay in cold weather. Check variety characteristics. Harvest June / July.|
(true Brocolli - not calabrese)
|Sow April / May outdoors. Harvest March / April the next year.|
|Brussels Sprouts||Sow outdoors March / May. Harvest from September through the winter. Check variety characteristics.|
|Butter Beans||Sow March / May in warm area. Harvest late summer.|
|Cabbages||Can be harvested all year round depending on variety and when sown.|
Savoy cabbages are great for winter harvesting. Sow April / June.
|Calabrese||Sow April / June outdoors. Harvest late August / September the same year.|
|Carrots||Can be sown successionally from March onwards. Check variety characteristics. Harvest from late May until autumn.|
|Cauliflower||Winter varieties: sow late April / early June for harvesting the following spring. |
Reputation for being very difficult to grow.
|Summer varieties: sow April / May. Harvest July / August onwards. |
Need good conditions and care for success.
|Celeriac||Sow under cover April / May (coldframe etc.). Plant out after frosts have passed. Harvest from September through winter.|
|Celery||Trench celery is tricky to grow.|
Requires good conditions and care for success. Frost sensitive seedlings.
Sow in April in temp of 15 degrees. Harvest from September onwards.
|Self blanching celery is a little easier than trench celery. Requires good conditions and care for success. Frost sensitive seedlings.|
Sow in April in temp of 15 oC. Harvest from August onwards.
|Chard||Sow successionally from April - August. Harvest July through winter.|
|Chilli||Sow February / April somewhere warm. Transplant after frosts. Harvest late July / September.|
|Chinese Cabbage||Sow June / July. Harvest August / October.|
|Courgettes||Sow undercover April / May. Plant out after frosts. Harvest from June onwards.|
|Cress||Grow indoors all year round. Line container with damp tissue. Sow seeds on top. Leave in light location, don't allow to dry out. Harvest when young.|
|Cucumbers||Sow in warm environment February - April. Transplant to warm location after frosts have passed. Harvest July / September.|
|French Beans||Sow undercover from April, or in-situ May / June (after frosts). Harvest July onwards.|
|Garlic||Cloves best planted in October / November. Can be planted in March. Harvest June / August (depending on planting time).|
Treat elephant garlic as per normal garlic.
|Kale||Sow April / June. Harvest September onwards through winter.|
|Kohl Rabi||Sow April - July. Harvest late June / October.|
|Leeks||Easy to grow. Sow April / May. Harvest September / May.|
|Lettuce||Spring maturing lettuce.|
Sow in October. Harvest April / May.
Depending on variety, sow from March / June in succession. Harvest June onwards.
|Marrows||Sow undercover April / May. Plant out after frosts. Harvest from June onwards.|
|Melon||Sow February / April in warm environment. Transplant to warm growing location after all frosts have passed. Harvest July / September.|
|Mustard||Grow indoors all year round. Line container with damp tissue. Sow seeds on top. Leave in light location, don't allow to dry out. Harvest when young.|
|Onions||If overwintering check the variety is hardy. Plant in October. Harvest late May / June.|
Risky in cold winters.
|Plant in March. Harvest in late June / August (depending on variety & weather).|
|Pak Choi||Sow July / August. Harvest from 5 weeks old.|
|Parsnips||Sow February / April, ideally in wet but not cold or feezing weather.|
Harvest after first frost (makes them sweeter). Best before start of following spring.
|Peas||Sowing dependent on variety. Early peas from February, later varieties from March / June.|
Harvest May / September.
|Peppers||Sow in warm environment February - April. Transplant to warm location after frosts have passed. Harvest August / September.|
|Potatoes -Early||Sow February / April. Trick is to time first shoots to appear above soil surface after the last frost.|
Harvest June / July / August.
|Potatoes -Main Crop||Sow March / April. Trick is to time first shoots to appear above soil surface after the last frost.|
Harvest August / October.
|Pumpkins||Sow undercover April / May. Plant out after frosts. Harvest from late September onwards.|
Sow August / Septermber. Harvest through winter.
Grow outdoors in succession from April onwards. Harvest in 3 - 6 weeks.
|Rhubarb||Perennial plant for 15+ years.|
Plant crowns when dormant October / March. Harvest March / June from year 2 onwards.
|Rocket||Sow February / June. Harvest 4+ weeks after sowing (best to eat young).|
|Runner Beans||Sow May / June outdoors (avoid frosts). Earlier under cover.|
Harvest July onwards.
|Salsify||Sow April / May outdoors. Harvest roots through winter.|
|Scorzonera||Sow April / May outdoors. Harvest roots through winter.|
|Shallots||Plant in January / February (avoiding very cold weather). Harvest in June / August (depending on variety & weather).|
|Spinach||Winter varieties exist. Plant in September / early October to harvest in March / May.|
Risk of failure in cold winter.
|Sow March / May in succession. Bolts in hot dry soil.|
Harvest June / July.
|Spinach- New Zealand||Sow under cover April. Outdoors from late May (avoid frosts). Harvest July / September.|
|Summer Squash||Sow undercover April / May. Plant out after frosts. Harvest from July onwards.|
|Swedes||Sow March / May. Harvest September onwards through winter.|
|Sweetcorn||Sow undercover April / May. Harvest August / October.|
|Tomatoes||Sow in warm environment February - April. Transplant to warm location after frosts have passed. Harvest August / September.|
|Turnips||Quick growing (compared to swedes).|
Sow March / August. Harvest May / October.
|Winter Squash||Sow undercover April / May. Plant out after frosts. Harvest from late July onwards. Dry in sun to store for winter.|
- See our vegetable growing guides here.
These guides provide a step by step approach to growing a selection of the most common vegetables on an allotment.
- Allotment Planner & Record Keeper
Designed by us and based on how we plan our own allotment, the allotment planner and record keeper provides all the key information to plan your growing, as well as enabling you to record growing positions and planting varieties for future reference.
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