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I have brought a cucumber plant into my kitchen from the greenhouse as it has some baby fruit on but was no longer getting much sun or warmth. It's now on a south-east-facing windowsill. The fruit are shaded by a lot of leaves- is it ok to cut some of them off? Is there anything else I should do to encourage it to keep producing?

 Don't cut any leaves off as they feed the plant and fruit.
Do you have any house plant feed? if so treat the cucumber to a feed of that once a month.
A question. How will the new fruits get pollinated?