Rotten tomatoes

denimiji, Feb 12, 9:24pm
I have dwarf tomatoes growing and fruiting very well in old recycle bin:containers, But as they ripen the bottom of the fruits rot. There is no rot when the fruits are green. Any ideas why!
fleur59, Feb 13, 4:51am
google blossom end rot
cantabman1, Feb 13, 6:18am
Maybe too much water!
benden, Feb 13, 6:33am
That will happen if the ground is very moist.
kaeloch, Feb 14, 8:05am
Mine did something similar (the first few anyway) and I looked it up and found it was a calcium deficiency - weird in that I was feeding them regularly but I must check the food I was using to see if it had added calcium in it.
(Mine weren't actually rotten, jsut had hard brown dry bits on the bottom)
mottly, Feb 14, 8:53am
some of mine did the same, but for them it was lack of water.
spiritofgonzo, Feb 14, 8:59am
although yes, technically it is officially a calcium deficiency, it's much more likely to be a problem with irregular watering, which inhibits the tomatoes ability to take in calcium.This is much more common in pots, because they dry out much quicker and there is no reserve damp soil deeper down.Make sure you include heaps of good quality compost that improves water retention, and water deeply when they need it, usually every 2nd day throughout summer . perhaps twice a day if in pots.
kaeloch, Feb 14, 12:51pm
They are in pots but had awesome medium and regular feeding.
They are watered deeplytwice daily and are already dry when I next get to them (VERY hot and dry here!)
spiritofgonzo, Feb 14, 1:01pm
what size pots were they in!You need to put 1 per pot at very minimum the size of a bucket (although I think that's too small).
spiritofgonzo, Mar 7, 8:41am
in fact, that is too small, I'd say minimum 20lt pot, where a bucket is 10-12lt