Tomato Problems in Hot Climates

Wilting & Blossom End Rot

Roots First – The first essential requirement a tomato plant needs to withstand a hot summer is a good root system.

This will help avoid wilting in the hot sun and increase nutrient uptake, helping to avoid blossom end rot and other problems associated with mineral deficiency.

Container growing will make the problem worse if measures haven’t been taken to add moisture retention such as gel or perlite etc. to the soil. An automatic watering system will of course do the job!

Using a hand spray/mist with added nutrients can help water and feed plant when roots aren’t sufficient.

Flowers Fail to pollinate

Sowing Seed and Timing – Sow seeds at a time, so that when the flowers arrive the temperature and humidity won’t be to high for the flowers to set. This is a common problem – if the temperature is too hot and dry, pollen is unable to do its job and the same is true if the humidity is too high. So plan ahead and have plants in flower before these conditions arise.

Tomato plants that are better able to cope with high temperatures are usually pants that can set at higher temperatures too. However there is a limit to how plant can perform.

Plants and Fruit top Growing

If you live in a cool climate area where seasons are short, it is hard to believe that tomato plants can get too much sun, but they can!

Perhaps it is more accurate to say too much heat because when the temperature reaches the mid 90′s or around 35 degrees C. growth stops.

This can be avoided by planting in an area that gets some afternoon shade or creating shade with fleece etc.

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