🌱 What Vegetables to Start in February for Summer Harvest

February is the month where summer harvests quietly begin. By starting the right vegetables now — mostly indoors or under cover — you give plants the long growing season they need to crop heavily once summer arrives.

⭐ Recommended Products — February Gardening Essentials

• Early Spring Seed Collection (February Sowing)
A pack of seeds suited for February sowing — think early onions, brassicas, tomatoes, chillies, and early flowers like pansies and primroses. Great for getting a head start on the growing season.
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• Seed & Cutting Propagation Compost
Fine, well-draining compost formulated for seeds and cuttings. Essential for giving young roots the ideal environment to establish strongly without rotting.
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• Seed Trays & Propagator Kit
Includes reusable seed trays, modules, and clear lids to create a controlled germination environment. Helps maintain humidity and protects young seedlings.
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• Heat Mat & Grow Lights for Seed Starting
Provides bottom heat and supplemental light — especially helpful in February’s low light and cooler temperatures to improve germination and early growth.
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• Plant Labels & Waterproof Marker Set
Keep track of your sowings with durable labels and a weather-proof pen — very useful when starting lots of different seeds in February.
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🧅 Onions (From Seed)

One of the most important February sowings.

How to start:

• Sow in trays or modules
• Keep at 10–15°C with good light

Why start now:
Early sowing leads to stronger plants and larger bulbs by summer.

🥬 Leeks

Leeks need time to bulk up properly.

How to start:

• Sow thinly in trays or modules
• Grow on indoors until planting out

Why start now:
February sowings produce thicker stems and better yields.

🥦 Brassicas (Summer & Autumn Crops)

Includes:

• Cabbage
• Calabrese
• Cauliflower
• Brussels sprouts

How to start:

• Sow in modules under cover

Why start now:
Creates strong transplants ready for early planting out and reliable summer crops.

🌿 Celery

A slow-growing crop that needs an early start.

How to start:

• Surface sow (do not cover seed)
• Keep warm and moist

Why start now:
Celery requires a long growing season to reach full size by summer.

🌶️ Chillies & Peppers

Essential February sowings for summer harvests.

How to start:

• Sow in trays or modules
• Maintain 20–25°C

Why start now:
Slow germination and long seasons mean late sowing reduces yields.

🍅 Tomatoes (With Heat and Light)

Only suitable if conditions are right.

How to start:

• Use a heated propagator (18–22°C)
• Provide maximum light

Why start now:
Early sowings give earlier and heavier summer harvests.

🫛 Peas (Early Varieties)

Best started under cover.

How to start:

• Sow in guttering, pots, or modules
• Protect from mice

Why start now:
Strong transplants establish quickly and crop earlier.

🧄 Garlic & Shallots (Last Chance Planting)

Can still be planted outdoors if soil allows.

Why start now:
Later planting reduces bulb size, so February is the final window.

❄️ February Starting Tips for Summer Crops

• Prioritise light over warmth once seeds germinate
• Avoid overwatering cold compost
• Sow little and often rather than everything at once
• Harden off plants gradually before planting out

⚠️ Vegetables Better Left Until March or April

Avoid starting these too early:

• Courgettes
• Squash
• Sweetcorn
• Climbing beans

They grow too quickly and become unmanageable indoors.