Lots of green tomatoes but not reddening
I started my tomato plant indoors but have taken it inside since temperatures here in the UK are down to 50 at night and not that warm during the day. I placed the plant in our conservatory. I have at least 50 green tomatos but none seem to be ripening. What can I do? I need to trim off some longer shoots so just did that two days ago. I have also given it tomatoe feed in its water.
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