Can any kind soul advise what's happening to this #tomato plant? It just stopped growing and the leaves lost their deep green colour. The flower buds have not opened. The bottom of the plant is okay.
It's one of four plants in my greenhouse. It shares a growbag with one other. The other plants are all healthy. I can see no sign of pests, like whitefly. Location, UK, north.
Input appreciated!

#gardening #allotments #gardeners #greenhouse

A picture of a sickly looking tomato plant. The leaves are curled and have lost colour
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Replying to @rootsandcalluses@mstdn.social

@rootsandcalluses
There are four plants in a row, two Shirley, a Marmande and this one, Alicante.
They all get the same light (filtered through a fleece), the same amount of water, in fact, the same everything.
The leaves are soft, no odd smells. The stem below the growing top looks healthy. Nothing on the leaves, no spots or living things.
Affected plant second from left

A picture of 4 tomato plants in growbags
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Jul 5, 2026, 09:33 UTCen