In The Greenhouse This February

Here are your top tips for the greenhouse this February  🌱🌤️ This is a quiet-but-crucial month — a bit of care now prevents headaches later.

🧼 Clean & disinfect (if you haven’t already)

• Wash glass, staging, and pots to maximise light.

• Disinfect seed trays to prevent damping-off disease.

• Remove algae and moss — they reduce light and cause slips.

🌬️ Ventilate on mild days

• Open doors or vents whenever temperatures rise above ~8–10°C.

• Good airflow reduces mould, mildew, and grey mould (botrytis).

• Close up again mid-afternoon to trap warmth.

🌱 Start early sowings (with care)

Sow sparingly — light levels are still low:

• Tomatoes, peppers, chillies, aubergines

• Lettuce, salad leaves, spinach

• Early peas and broad beans

Use a heated propagator if you have one; otherwise, wait for brighter days.

❄️ Frost protection is key

• Keep horticultural fleece or bubble wrap handy.

• Protect tender plants and seedlings at night.

• Water plants earlier in the day — wet compost overnight = cold roots.

🌡️ Temperature & watering balance

• Aim for steady temperatures, not hot days and freezing nights.

• Water very sparingly — compost should be just moist, not wet.

• Raise pots off cold floors using feet or bricks.

🐌 Pests & hygiene

• Check under pots for slugs and snails.

• Watch for aphids on overwintering plants.

• Remove dead leaves promptly to stop disease spreading.

🛠️ Check equipment

• Test heaters and thermostats.

• Repair cracked glass and seal draughts.

• Clean greenhouse glazing to boost light by up to 10%.

📋 Plan your space

• Decide where tomatoes, cucumbers, and peppers will go later.

• Avoid overcrowding now — airflow is everything.

🌤️ Slow and steady wins

If in doubt, delay sowing by a week — February seedlings need extra care.