January & February:
January 28th to March 12th – Scottish Snowdrop Festival, multiple gardens open in Scotland (visitscotland.com or rhs.org.uk).
February 12th to 14th – RHS Early Spring Plant Fair, Lawrence and Lindley Halls (rhs.org.uk)
March 15th to 2nd April – Falmouth Spring Flower Show, Cornwall, TR11 3EF. A local institution; rare and exotic flora (01326 313553 – falmouth.co.uk).
March 17th – Plant Hunter’s Fair, 10am-4pm, National Memorial Arboretum. The plant hunter’s year begins (01270 811443 – planthuntersfairs.co.uk).
March 19th – Rare Plant Fair, 10am-4pm, The Bishop’s Palace, Wells, Somerset. First Rare Plant Fair of the year (0845 468 1368 – rareplantfair.co.uk).
March 20th – RHS Spring Free Day – Free Event – RHS Garden Harlow Carr, HG3 1QB (rhs.org.uk)
April 7th to 8th – Spring Flower Show, Boconnoc House, Cornwall. The famous early showcase for Cornish talent, gardens and home grown produce (07734 366504 – cornwallgardensociety.org.uk).
April 13th to 15th – RHS Flower Show, Bute Park, Cardiff. Kick start your gardening year at this flower show extravaganza (0844 338 7502 – rhs.org.uk).
April 27th to 28th April – Toby Buckland’s Garden Festival, 10am-5pm, Powderham Castle, Devon. Specialist nurseries and popular Devon growers. Live music, local food and top-quality garden (tobygardenfest.co.uk).
May 10th to 13th – RHS Malvern Spring Festival, Three Counties Showground, Malvern. Spectacular show gardens, Floral Marquee food demonstrations (0844 338 7502 – rhs.org.uk).
May 19th – 27th – Chelsea Fringe, London. Alternative garden festival celebrating community growing, outdoor performance, botanical art, walks, talks and events (chelseafringe.com).
May 22th to 26th – RHS Chelsea Flower Show, London. The pinnacle of horticultural excellence with innovative show gardens by the world’s leading designers and the finest displays of plants (0844 338 7502 – rhs.org.uk).
June 1st to 3rd – Gardening Scotland, Royal Highland Showground, Ingliston. Show gardens, exhibitors, outdoor living festival and plant fair (0131 333 0965 – gardeningscotland.com).
June 6th to 8th – RHS Chatsworth Flower Show, Bakewell, Derbyshire, DE45 1PP. Major event in the gardening calender. Loads to see and do (0844 995 9664 – rhs.org.uk)
June 24-26 – Grow London, House & Garden Fair, Olympia, London. An inspiring day out bursting with ideas on how to transform urban spaces (0844 412 4623 – houseandgardenfestival.com/event/grow-london).