Step by step

Check watering daily: Erratic watering can cause problems such as blossom end rot in tomatoes. Water well and evenly. Ventilate the greenhouse often: Good air circulation is a key factor in keeping your greenhouse plants healthy. Create good support: Cucumbers, melons and tomatoes need good support. Tie them in regularly. Clean surfaces and pots: Keep greenhouse surfaces, windows and pots clean. Disease can spread easily.