Five typical mistakes when growing tomatoes - and how you can do it better. Around mid-March is a good time to grow tomatoes indoors; you can also start growing tomatoes in the greenhouse at the end of February.
Tomatoes are light germinators. Covering the seeds with too much soil when sowing makes germination more difficult. Too little of it causes them to become long and thin, they become susceptible to disease and break off more easily. Use peat-free potting soil, which is lower in nutrients.