Growing Tomatoes

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Peter Pitman
Thursday, 14 August, 2025
Tomatoes – Peter Pitman

Tomatoes are a member of the solium family of plants, which includes potatoes.

They originated growing wild in the Andes, where they were domesticated and cultivated around 500BC.

They are one of the most widely cultivated plants in the world today.  

Fun facts about tomatoes:

• They are not always red, varying in colour from yellow, pink, black, orange and other colours in between
• The first tomatoes were gold in colour and considered an aphrodisiac! 
• China is today the largest producer of tomatoes in the world
• The original cherry-size tomatoes were from Ecuador, 80, 000 years ago
• The lifespan of a tomato depends on the growing conditions – from the time of germination until the plant dies is around six months
• Tomato plants symbolise life, love and fertility

Growing conditions are pretty standard, they like plenty of sun so choose north or west facing positions

Now is the time – mid- to late August – to prepare the soil, if growing in the ground.  Mix plenty of well-composted compost with a good amount of chicken manure, for a well-developed root system, plus a good amount of potash, about a handful per plant, for good flower and fruit development.  

You can plant established plants from mid-September through until mid- or late December.  

By adding a small amount of baking soda – about a handful per plant – will lower soil acidity.  You can also add an egg to each hole to help calcium deficiency.  

Once developed – in two to three weeks – they should develop a nice purple stem.

Diseases:

Blossom rot is caused by calcium deficiency, so dusting with dolomite lime will eliminate this, and will also help to stop club foot, which is small lumps around the roots.  The plant will appear limp and lifeless, as if it needs more water – in fact, the roots are actually rotting away, killing the plant.  

Companion Plants:  

Plants that flourish around tomatoes are basil, nasturtiums and English or French marigolds, which are all edible and help to keep the plants insect-free.

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