Clara Vale
How can I lighten my orchids? Is there a reliable mix of weed suppressants and fertilisers for growing edibles? Why have the leaves of my Camelia started turning yellow?
How can I lighten my orchids? Is there a reliable mix of weed suppressants and fertilisers for growing edibles? Why have the leaves of my Camelia started turning yellow?
This week on Gardeners’ Question Time, Kathy Clugston and a hand‑picked panel of horticultural experts head to Clara Vale to tackle the green‑fingered queries of a live audience.
Joining Kathy are garden designer Matthew Wilson, botanist Dr Chris Thorogood, and allotmenteer Bethan Collerton, who bring their combined expertise, practical know‑how and good humour to the discussion.
Later in the programme, Peter Gibbs visits the renowned Snowdrop Collection at RHS Wisley, where he meets fellow Galanthaphile and Snowdrops expert Jessica Jansdotter.
Producer: Dan Cocker
Junior Producer: Suhaar Ali
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 – What would the panel put in a flower boarder that fit my black and white theme? (01’38”)
Matthew Wilson –
Ophiopogon planiscapus 'Nigrescens', mondo grass 'Kokuryū'
Salix, willow
Clematis montana var. grandiflora (M), white anemone clematis
Cotinus, smoke bush
Gypsophila paniculata, baby’s breath
Chris Thorogood
Betula utilis, himalayan birch
Betula utilis subsp. jacquemontii 'Silver Shadow', himalayan birch 'Silver Shadow' ( syn. Betula Silver Shadow' )
Bethan Collerton –
Heuchera, coral bells
Brunnera macrophylla 'Silver Heart'PBR. , siberian bugloss 'Silver Heart'
Q – What should I replace my honey fungus infected cherry trees with? (06’54”)
Bethan Collerton –
Malus domestica (F), apple
Ilex aquifolium, common holly
Chris Thorogood –
Stewartia
Magnolia
Magnolia fraseri, fraser magnolia
Matthew Wilson –
Juglans regia (F), common walnut
Q – How do I reduce the weight of my orchids? (12’57”)
Q – What combination of fertilizer and weed suppressants would guarantee a good harvest this year? (17’42”)
Q – Would planting seeds of nasturtiums into trays encourage them to grown better? (22’46”)
Feature – Peter Gibbs visits the RHS Wisley Snowdrop collection, where he meets fellow Galanthophile and Snowdrops expert Jessica Jansdotter (25’27”)
Q – What plant would be best to grow in a four-foot-long planter with a trellis? (31’09”)
Chris Thorogood –
Actinidia
Passiflora caerulea, blue passion flower
Hydrangea viburnoides, climbing hydrangea
Bethan Collerton –
Parthenocissus quinquefolia, virginia creeper
Jasminum nudiflorum, winter jasmine
Matthew Wilson –
Itea ilicifolia, holly-leaved sweet spire
Garrya elliptica, silk tassel bush
Q – Why have the leaves of my camelia started turning yellow? (35’17”)
Q – What would you suggest for a flower bed that might satisfy my need for a bit of dazzle in the garden, but also appeal to my husband’s more esoteric tastes? (37’35”)
Chris Thorogood –
Dicentra Formosa, western bleeding heart
Spathiphyllum, peace lilies
Broadcasts
- Fri 16 Jan 2026 15:00BBC Radio 4
- Sun 18 Jan 2026 14:00BBC Radio 4
Join us at RHS Garden Wisley and be part of the show as we host the BBC Radio 4 Gardeners’ Question Time Summer Garden Party
Podcast
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Gardeners' Question Time
Horticultural programme featuring a group of gardening experts

