Greenhouse growing tomato plants

There are a couple of ways for approaching the tomato growing in a greenhouse, you can dig and prepare the ground ready to accept greenhouse tomato plants or you can grow plants in a container like a plant pot (diameter 12 ") or growbag.

Realistically most growbags that are available that can be 35 or 40 litres in size is just enough to support two plants. There are ways in which you can push this out to 3 plants but at the cost of a growbag its probably so just stick to 2 plants, especially if you take care of them and produce a lot of fruit.

If you go to jars, then you should steralise them before use to do this you can use a dilute solution of a suitable disinfectant, something like Jeyes fluid is perfect for this task.

While we're on this topic, I really should clean down inside your greenhouse with disinfectant to ensure any residual contaminants that can also cause disease are removed from the glass.

One of the reasons that I'm suggesting using large pots or growbags for growing tomato plants is because the soil in the greenhouse is going to have to be excavated replaced every 2 or 3 years, however, to ensure that you get rid of any build up of the disease and also because the soil will be virtually spent in terms of nutrients.

Space is limited in a greenhouse, so the best option for plant varieties is to use the indeterminate varieties of tomato plant: a plant vine. You can prune the plant to the required size, leaving about 4-6 main trusses on the stem, which is about 6 ' to 7 ' in height, the greenhouse dimensions permitting. This will give you a lot of fruits on a prolonged period.  You will have to pinch off the main stem when you have enough trusses to stop further growth.

Incidentally, using a variety of bush is less convenient for greenhouses because they, as the name suggests, it forms a crucial dimension of bush without pruning that is probably a little too large diameter average glasshouses. The result also has a tendency to all come at once.

Regardless of which method you choose, growth should start to feed the tomatoes at the first sign of fruit and for the duration of the growing period, twice a week should suffice. As you are in a regular and consistent greenhouse watering is also very important and I recommend 2 or 3 times daily with water, which was allowed to heat in a greenhouse.

As at the end of the season approaching a way of helping the last remaining ripen fruit is to hang a couple of bananas in the height of the greenhouse. If that fails to mature the last bit of fruit you can always use green tomatoes for the production of a delicious chutney.