Growing tomatoes yourself from seed is just fun. I grow the offspring for years in a propagator. Under its roof the offspring is always fine.

Even though my fingers itch at the latest at the beginning of March, I leave the seed bags of tomatoes in the seed box. Because every time I’ve sown the Mediterranean vegetable before mid/late March, my little plants have grown into long, spindly creatures.

I only grow a manageable number of tomatoes in my allotment. That’s why I don’t sow tomatoes in large boxes of growing soil, but use small swelling coconut tablets for sowing. Just like growing media, they contain little to no nutrients and have the same loose structure. In addition, I find them very practical. Because the dried substrate swells within a few minutes simply in a bowl with lukewarm water to small growing pots. The nice thing is that my kitchen remains free of soil crumbs!

For sowing, I place one seed at a time in the well of the coconut swell pots. Since I’m good at mixing up different tomatoes, I place the three varieties in the tray grouped together and labeled with name tags.

Perfect tomato regrowth under a plant light.

For the past few years, I’ve grown my tomatoes on a bright windowsill in an indoor greenhouse. Under its roof, I can keep the humidity high. In addition, the offspring is protected there against drafts and temperature fluctuations. This year, however, the greenhouse is not on the windowsill. Because I have equipped it with a grow light. I was very curious how the seedlings develop under its light influence.

So far, each little seed ticked differently. While some seedlings already took off after a few days, the others took more or less time. And some do not stir at all. How lucky that no one saw how often I lovingly eyed my offspring 🙂 .

This year, however, they all sprouted evenly and there was no failure. That really made me very happy. This success I probably also have to thank the grow light.

Practical tips for sowing tomatoes

Very important during the cultivation is that you put the small tomato flock at 20 to 22 degrees Celsius in a bright place. As long as the offspring is protected under a film or roof, you need to ventilate daily. During the growing period, the substrate should never dry out completely, but also not constantly stand in the water.

When can the little tomatoes move?

As soon as the first foliage leaves are clearly visible, I will move the offspring into larger Jiffy pots. They have some advantages over clay pots. The tomato plants can easily root through their open-pored pot walls made of peat-free coconut-cellulose mixture. Consequently, the young plants do not need to be potted out and the material in the pots breaks down in the soil without leaving any residue.

I put the pots in the house in very bright warm place. They can move to the greenhouse or garden only when there is no threat of frost and temperatures do not fall below 10 degrees Celsius for a long time.