Kemps, near Yate, in Somerset, is on a greenbelt site, but planning consultant Chris Primett said that as a mixed development and not a garden centre he won consent for a 2,000sq m plant centre with a shop canopy sales-area selling "imported plants and products".
The shop is part of a larger 23,000sq m nursery.
The client is talking to building suppliers and wants to start work in late summer.
Meanwhile, work has also begun on the first phase of development at Palmer Gardens, Trowbridge, Wiltshire, a garden centre and cafe that is owned and managed by national employment charity the Shaw Trust. Planning permission was gained by Malcolm Scott Consultants in August 2008 on behalf of the Shaw Trust for the erection of a 479sq m canopy over the plant sales area, and five new car-parking places, including three for disabled people.
The shop is to have a 61sq m extension, said planning consultant Tracey Hubbard.