In my garden we had to trees and we had them cut down know every time it rains the grass becomes saturated and boggy is there any plants that drink vast amounts of water but don't grow big.
i have clay soil
Maybe that's why the trees were there in the first place Luke. If you are on clay plants won't solve your problem. You need to improve the drainage and if it's that bad you'll need drainage pipes under the soil and a different approach to your garden.
It's not easy to solve and you'll need professional help and advice as installing drainage is costly and labour intensive.
Hi Luke have you considered a bog garden ,,done right they can be stunning,also look at this info from RHS https://www.rhs.org.uk/advice/profile?pid=303
thanks for the help. I have a space in my garden and was thinking about putting a small tree what one would be suitable and drink a lot of water to help with the flooding
The coloured stemmed dogwoods can stand boggy ground but won't take up as much water as a big tree. Don't forget a deciduous tree only sucks up water in the leafy season and an evergreen wouldn't take up much in winter