❄️

UK Frost Date Checker

Find your last spring frost and first autumn frost dates. Know exactly when it's safe to plant out tender crops β€” and when to bring plants in before winter.

πŸ“ Select your UK region

🌑️

Select a region above

Frost dates based on Met Office historical averages

🌸 Last Spring Frost
β€”
πŸ‚ First Autumn Frost
β€”

Growing season at a glance

Frost risk
Safe to plant out tender crops
Peak growing season

🌱 When to plant out tender crops

πŸ’‘ Frost date tips for UK gardeners

πŸ“…These are averages, not guarantees. A cold snap can arrive 2–3 weeks after the "last frost" date in any given year. Always watch the forecast in spring and keep fleece to hand.
🌑️Your garden has its own microclimate. A south-facing, sheltered spot can be 2–3Β°C warmer than an exposed north-facing one. Frost pockets in low-lying areas stay colder for longer.
🌱Harden off before planting out. Spend 7–10 days putting indoor-raised plants outside in the day and bringing them in at night before leaving them out permanently.
πŸ₯ΆA light frost (0 to -2Β°C) is survivable for many plants if covered with fleece overnight. A hard frost (-4Β°C or below) will kill unprotected tender plants regardless.
πŸ“±Check the Met Office forecast the night before planting out anything tender. A clear night with low humidity after a cold day is the highest frost risk combination.

Why frost dates matter for UK gardeners

The last frost date in spring is one of the most important dates in the UK gardening calendar. Plant out tender crops too early and a late frost will kill them overnight. Wait too long and you shorten the growing season unnecessarily. Knowing your region's typical last frost date lets you plan sowing times, hardening off periods, and planting out dates with confidence rather than guesswork.

UK frost dates by region

Frost dates vary enormously across the UK β€” Scotland and northern England typically see their last frost 4–6 weeks later than the South West and South East. Here are approximate average last spring frost dates for UK regions:

South West England
Last frost: late March – early April
South East England
Last frost: mid April
Midlands
Last frost: late April
Wales
Last frost: late April – early May
Northern England
Last frost: early to mid May
Scotland
Last frost: mid to late May

When to plant out common tender crops

As a general rule, wait until 2 weeks after your last frost date before planting out tender crops, and harden plants off for 7–10 days before transplanting. Here are typical UK planting out windows for the most popular tender vegetables:

πŸ… Tomatoes
Plant out: late May – early June in most UK regions
πŸ₯’ Courgettes
Plant out: late May – early June after last frost
πŸ«‘ Peppers & chillies
Plant out: early June β€” later than tomatoes
🌽 Sweetcorn
Plant out: late May in south, early June further north
🫘 French beans
Plant out or direct sow: late May onwards
πŸŽƒ Squash & pumpkins
Plant out: early June β€” very frost sensitive

Use the checker above to get your specific region's dates, then cross-reference with the seed to harvest timeline to plan your full growing season. See all free GrowGuide tools β†’