Bay Blooms, organised by Tor2, is open to all Torbay residents to enter.
Among the 20 categories is one for allotments.
Entries will be judged during July and August with cups and certificates to be won for achievement and expertise, with a presentation ceremony in October.
The event is sposnored by Suttons, Torbay Town Centres Company and Riviera FM.
For more information and an entry form email firstname.lastname@example.org. The closing date is June 18.