This month...

WALLED GARDEN OPENINGS Weekends in Sept, 11am-5pm National Trust Croome, nr High Green, Worcester WR8 9DW Britain’s largest walled garden opens its doors after renovation. Adults £5 01905 370901; www.croomewalledgardens.com

DAHLIA FESTIVAL 2 and 16 September, 11am-4pm Kelmarsh Hall, Main Road, Kelmarsh, Northamptonshire NN6 9LY Spectacular dahlia displays, clinic, tours and demonstrations. Adults £10 01604 686543; www.kelmarsh.com

GARDENING FOR BEES WALK 5 Sept, 10am-12pm RHS Harlow Carr, Crag Lane, Harrogate, North Yorkshire HG3 1QB Find out more about bees in the garden and our role supporting these vital creatures. Adults £37; RHS £26 020 3176 5830; www.rhs.org.uk

INSPIRATION WEEKEND 8-9 September, 10.30am-5.30pm Bressingham Hall and Gardens, Low Road, Diss IP22 2AA Garden tours, plant sales and art exhibition. Talks by Adrian Bloom and Jaime Blake include 10 plants you can’t be without. Adults £8.99 01379 688282; www.thebressinghamgardens.com

SHOW-STOPPING PERENNIALS 20 Sept, 11am-12.30pm RHS Rosemoor, Great Torrington, Devon EX38 8PH Tour of the perennial beds at RHS Rosemoor. Detailed plant list supplied. Adults £25; RHS £14 020 3176 5830; www.rhs.org.uk

ROSE PRUNING COURSE 27 September, 10am-12.30pm Barnsdale Gardens, The Avenue, Exton, Rutland LE15 8AH Head gardener Jon Brocklebank leads this easy-to-follow event. Adults £34 01572 813200; www.barnsdalegardens.co.uk

FLORAL FANTASIA Until 30 Sept, 10am-4.45pm RHS Hyde Hall, Creephedge Lane, Rettendon Common, Chelmsford CM3 8ET Summer flower extravaganza in partnership with Thompson & Morgan. Adults £11.50; RHS free 01245 400256; www.rhs.org.uk