Only two women designers, Jo Thompson and Kamelia bin Zaal, had show gardens in 2015, a record low in recent years.
Thompson, Ann Marie Powell and at least one other woman are set to design for Chelsea in 2016.
Other designers who will exhibit are Andy Sturgeon (Telegraph) Cleve West (M&G), Hugo Bugg (RBC), Rich Brothers (Cloudy Bay) and James Basson (L'Occitane). The is set to be a herb garden and Coutts and Laurent Perrier will also have a garden. The RHS meet on 29 October to decide which gardens it will pick. They will be announced on 11 November.