Growing tomatoes (Solanum lycopersicum) has never been easier with our great range of tomato planters and accessories. We stock everything from plastic pots and growbags to mini greenhouses and irrigation systems, so youre sure to find what youre looking for. How do I grow tomatoes? Tomatoes originate from Central and South America, and are suited to warmer climates than the UK. The optimal temperatures for the germination of tomato seeds is from 20 to 26 Celsius, although 15°C is acceptable as they will still germinate, albeit slowly. Once they are established the best temperature range for growth is between 21 and 24°C, although above this is fine, provided they are watered frequently. As such, due to the high temperatures required, tomatoes will grow poorly throughout much of the United Kingdom if left outside, and will need to be placed in greenhouses. Tomatoes are often bought in garden centers, but are easy enough grow from seed. Once established they are usually grow in large plastic pots or growbags with bamboo canes attached to support the stems. They can be left outside to grow in the summer months, but are usually kept in mini greenhouses, cloches (cages) and of course greenhouses, which maintain constantly higher temperatures and protect the plants from the wind. The best practice for watering is little and often, and in the peak of summer they will need watered regularly, especially if left in a greenhouse. Thus, they are often accompanied with irrigation systems that provide a natural steady stream of water. It should be noted that they are very hungry plants and it is common to regularly feed them once they are ready to fruit, often weekly with ammonium nitrate. If you decide to grow your plants outside, you have to wait until the last of the frost is over. It is paramount that they are placed in full sunlight, and it is best if you grow them from seeds indoors before transferring outdoors in late April / May. And again, if you wish to grow them outside from seed, you will have to wait till the soils temperature is at least 15°C. This can be estimated with the use of a soil thermometer.