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Tomato Seeds Sowing instructions:
Few vegetables have suffered at the hands of the commercial food chain as much as the tomato. The simple fact of the matter is that most of the tomatoes that we buy year-in, year-out in our supermarkets taste of absolutely nothing at all. It is not until you grow your own that you realise this.
Commercial growers pick varieties that have thick skins so that they last longer and are less prone to wastage in storage and distribution. On the other hand, the homegrown tomato is a delectable treat – a meal in itself, best eaten fresh in the warmth of the greenhouse for maximum effect.
Tomatoes do require a certain level of TLC (pinching out sideshoots, watering, feeding, etc), but it’s definitely worth the effort.
Sow
March to April
Harvest
July to October
Sow
The soil needs to be fertile for tomatoes, so the addition of compost and a general fertiliser is usually beneficial.
If growing in containers then use good quality potting compost.
Tomatoes need to grow in warm temperatures so a greenhouse will give you the best results, but you can also try growing at a sunny windowsill.
Tomatoes are usually grown in a glasshouse or polytunnel in Ireland. Some people have had success growing outside in a warm summer, but in a poor summer they are a very difficult crop outdoor.
Tomatoes can be grown in soil or containers – management is easier in the soil, but successful crops can be produced in large pots or grow bags.
Sow seeds in 2cm deep pots or module trays in March, indoors on a heated mat, in a greenhouse or a warm, sunny spot.
Grow
Tomatoes can be planted out into the polytunnel from mid-April onwards.
Plants sown in pots in March will be ready for transplanting when they are about 12-15cm high – space out plants 60cm each way.
If growing tomatoes in containers we suggest giving your plant liquid feed regularly. Liquid feeding is unnecessary when growing in fertile soil. Learn how to make your own here.
Tomatoes are either bush varieties or tall (cordon) varieties. Bush varieties are left largely untrained to grow. The tall varieties are trained up a single stem – this requires a way of supporting them and regular pruning. Support can either be a stake or a vertical string tied to a horizontal wire. If a string is used then this can be loosely tied to the base of the tomato, which is gently wound around the string as it grows.
Pruning consists of the regular removal of the side shoots that grow from the stem at the base of the leaves. This is to keep the plant manageable and allow good airflow. Leaves are removed, starting at the base, once the plant has reached around a metre tall.
Continue removing leaves as the fruit trusses ripen up the stem. This is to allow airflow around the plants.
Finally remove the growing tip in late August – this is because any fruit set after this would not have time to ripen.
Tomatoes need over 10 litres of water a week. For plants growing in the soil this can be given weekly in one watering. Daily watering is usually needed in containers or grow bags.
Harvest
The first tomatoes should be ready in late June/early July and cropping can continue into October or early November.
Harvest when the fruits are ripe.
Fruit will split if left on the plants so remove as it ripens – surplus fruit can be made in to sauces for the freezer.
You are likely to be left with lots of green fruit at the end of the season – use these for chutneys.
Visit the GIY Veg directory for more growing details and tips.
