• 25-26 March and 1-2 April: Haldon Grange, Dunchideock, Exeter, Devon EX6 7YE. Camellias, magnolias, rhododendrons, a lake and ponds with river and water cascades. Open 1pm-5pm for NGS, 01392 832349, ngs.org.uk
• 25 March: The Manor House Street, Horncastle, Lincolnshire LN9 5HF. Informal spring garden and orchard bordered by the River Bain and including a short section of Roman fort wall. Open 12pm-4pm for NGS, ngs.org.uk
• 26 March: Bere Mill, London Road, Whitchurch, Hampshire RG28 7NH. Water meadows and wooded valleys, herbaceous borders, an orchard and arboretums. The working mill made paper for the Bank of England in 1716. Open 1.30pm-5pm for NGS, 01256 892210, ngs.org.uk
• 28-30 March: RHS Spring Plant and Orchid Show: RHS Lindley Hall and RHS Lawrence Hall, 80 Vincent Square, Westminster, London SW1P…
