As the tomatoes begin to sprout on a sunny windowsill, my thoughts have turned to keeping them healthy and getting big, ripe tomatoes at the end of the season.
The process will start with ensuring that the tomato plants form strong, healthy roots. This will be helped by potting up the immature plants several times.
To form juicy fruits and continue growing strong, tomato plants need a potassium rich fertiliser. Rather than using a proprietary tomato feed I plan to feed the plants with comfrey tea once they flower.
Companion planting will also be part of the equation. The main ones I will be sowing next to our tomatoes when they reach the polytunnel are peppers, basil and marigolds.