On Saturday 16th May 2026 and Sunday 17th May 2026, Gelli Uchaf Garden will be opening from 10.30am until 5.30pm for the NGS. Gelli Uchaf, Rhydcymerau, Llandeilo, Carmarthenshire, SA19 7PY. This 1½ acre garden features trees and shrubs underplanted with hundreds of thousands of snowdrops, crocus, cyclamen, and daffodils. There are rambling roses, Rhododendrons, Hydrangeas, and more. There will be a plant stall. You must pre-book your place to visit this garden, for all the details, please click here.