New varieties from the French cyclamen breeder will be on show, including some seen in the UK for the first time. There will be plants with unusual colours and flower shapes that are not generally available.
Visitors to the festival, which takes place on 8-16 October, will be asked to vote for their favourite varieties. The results will be fed back into Morel's selection process and influence which plants are grown in the future.
Meadow Croft director Michael Smith said: "The Morel family have a worldwide reputation and have specialised in breeding and growing cyclamen for more than 50 years. They are prolific in developing new varieties and plants grown specially to go on trial at the festival may never be available commercially.
"This is a great opportunity for British gardeners to get an early taste of future cyclamen varieties or to get their hands on some that could be incredibly rare."