My boyfriend decided to rescue a Kiwi plant that was in the sale at our local garden centre, it still has a few leaves on it but it looks a little sad. Its currently inside on the widowsill, in its original pot and we're keeping it well watered.
Any tips on how we could look after this, so it survives?
(picture to come soon)
If you mean the plant that bears the kiwi fruit they are very vigorous and not really suitable for growing indoors, unless you are just letting it recuperate! Don't overwater it and give it a boost of liquid feed, that should keep it going.
Many are not self fertile and will need a mate in order to produce fruit. I bought one of the supposedly self-fertile varieties some years ago and planted it in a sheltered spot where it grew like mad and started twining itself round everything it sight. After three years it had not produced any fruit but its thuggish behaviour meant that it had to come out.
As Colin has said, Kiwis are not a plant for a small (indoor) area.
Also as Colin says, avoid over-watering. Just the moist side of dry is fine - but no more.
Personally I would avoid feeding for two reasons... Unless managed carefully with 'stressed' plants feeding does far more harm than good and 2) we are a week off September so a flush of fresh soft growth really is not wanted either inside or outside!
As Colin says, Kiwis can be slow to fruit with either self-fertile or females (requiring a pollinator) needing to be settled for at least two years (and in my experience 3 - 4 years) to become really productive. I contributed to this article - Killer Kiwis - which you may find useful.