Waltham Forest: Coriander, Sow-By-Date and Perennials
Any tips on growing coriander from seed? Do seeds have a sow-by-date? Is it it worth transporting my plants to Scotland? Kathy Clugston and the GQT panel have all the answers.
How do you grow coriander successfully from seed? Do seeds have a sow-by-date? And will your treasured perennials thrive in the challenging Scottish climate?
Kathy Clugston hosts from the beautiful St Mary’s Church in Walthamstow, where a lively audience puts their gardening dilemmas to an expert panel. Joining Kathy are renowned garden designer and botanist James Wong, horticulturalist Matthew Biggs, and allotment enthusiast Frances Tophill, ready to share their knowledge and practical advice.
Later in the programme, Anne Swithinbank offers her essential tips on preparing your garden to withstand the winter months ahead.
Producer: Matthew Smith
Junior Producer: Rahnee Prescod
A Somethin' Else production for BBC Radio 4
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Plant List
Questions and timecodes are below. Where applicable, plant names have been provided.
Q – Do you have any tips on growing coriander from seed? (01’15”)
James Wong –
Coriandrum sativum, coriander
Persicaria odorata, vietnamese coriander
Laksa leaf
Q – Would my much-loved perennials and plants survive in the Scottish climate? (07’15”)
Paula –
Eryngiums
Hardy Geraniums
Q – What would you plant in a new garden, on the edge of the forest? (13’19”)
James Wong –
Tree Ferns
Hardy orchids
Frances Tophill –
Parrotia persica, persian ironwood
Amelanchier lamarckii, snowy mespilus
Matt Biggs –
Cistus, Rock Rose
Cistus ladanifer L., common gum cistus
Ceanothus, Californian lilac
Scilla peruviana, Portuguese squill
Sorbus aucuparia, rowan
Sorbus vilmorinii, vilmorin’s rowan
Feature – Anne Swithinbank shares her tips and advice on how to help our gardens weather the winter ahead (22’28”)
Q – What’s happened to my oleander tree? Is it dying? (24’37”)
Q – Any tips on how to encourage Black Lace Elder into a multi stem form? (27’19”)
Q – Do seeds have a Sow-by-date? (31’19”)
Q – What can I do to help my chilli plant? (36’13”)
Q – How do I control the growth of my Ceanothus? (39’19”)
Broadcasts
- Fri 5 Dec 2025 15:00BBC Radio 4
- Sun 7 Dec 2025 14:00BBC Radio 4
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Gardeners' Question Time
Horticultural programme featuring a group of gardening experts

