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Black bottoms on tomatoes
carol50nyc
Posts: 2
in Fruit & veg
I bought a watering system which holds 40 litres and keeps the plants watered and I add feed weekly - I've just noticed the black bottoms starting on a couple and thought that it's caused by faulty watering?
0
Posts
Do the photos here look a good match?
https://www.google.com/search?q=tomato+blossom+end+rot&source=lnms&tbm=isch&sa=X&ved=0ahUKEwjdrv3en6rjAhWBYcAKHcndDYUQ_AUIECgB&biw=1920&bih=1057
Some info here from the RHS if it is BER
https://www.rhs.org.uk/advice/profile?pid=395
Billericay - Essex
Knowledge is knowing that a tomato is a fruit.
Wisdom is not putting it in a fruit salad.
It happens because the plant is not supplying enough calcium at the tip of the fruit the cells burst and the flesh sinks in.
The soil or potting compost should be kept consistently moist throughout the growing season and must never be allowed to dry out in hot periods it may need watering two or more times a day. It is better to water twice a day than once with a double volume.
Growing bag compost is very difficult to moisten evenly and thoroughly once it has dried out use of larger containers, or growing in border soil are all potential solutions where frequent watering is not possible covering the soil or potting compost with mulch will also help to conserve moisture around plant roots.
Applying liquid fertiliser may help, but this must only be applied to moist soil, and following the manufacturer's recommendations
Very high air humidity can also limit water uptake by plant roots, so good daytime ventilation of greenhouses is helpful.
"You don't stop gardening because you get old, you get old because you stop gardening." - The Hampshire Hog