Ian and Mary Reay opened their gardens at Eden Leas, in Culgaith, for 170 supporters, raising £2,000.
The gardens, which the Reays have worked on since 1963, feature woodlands, rolling lawns, and three lakes with many exotic water plants. Guests were treated to prosecco as they explored the gardens.
The highlight of the event was the resident family of swans with their seven newly hatched cygnets.
Georgina Lamb, regional manager for the North West, said: “I’d like to thank Ian and Mary for choosing to support R.A.B.I by sharing their beautiful gardens with our supporters. We were blessed with a gloriously sunny day, which really topped off the occasion.”