Burglars are taking £72.21's worth on average, said insurer More Than.
Some 20 per cent of those surveyed said their gardens have been subject to theft in the last 12 months alone, with researchers suggesting that thieves have been casting their nets wider for items of value in tough economic times.
Rare lilies, olive trees, hanging baskets, bay trees and roses were among the plants that are most frequently taken.
Worst hit was the North East and North West of England. East Midlands was least affected.
Seven out of ten people said their front garden had been targeted at some point.