Kelways Nursery near Langport in Somerset is planning to open a new team room with outside seating and play areas in a barn which currently houses its garden centre shop.
The nursery has requested planning permission from South Somerset District Council to make changes to its site.
The company is hoping to relocate its shop into a redundant horticultural building on the site.
It also intends to convert the first floor above the current shop into a meeting room which will be used for talks and demonstrations for the nursery's customers and local gardening clubs.
Kelways director Dave Root said: "We've applied for planning permission to convert our existing shop, a lovely old barn, into a coffee shop. We want to make ourselves less weather dependent because we're a rural specialist plant centre and when it rains people don't come out. We want to become more of a destination and do what other garden centres have done."
Kelways hopes to open the cafe by Easter 2014 if planning is successful.