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Knebworth House and Gardens: Postbag Edition

Peter Gibbs hosts this week's gardening panel show at Knebworth Gardens.

Peter Gibbs hosts this week's gardening panel show. Pippa Greenwood, Bob Flowerdew and Bunny Guinness are on hand to answer questions sent in by listeners.

The team is back together in real life once again and gets straight to tackling questions on squashless squash, putting lavender in the compost heap, and dealing with grass snakes.

The panellists also discuss how to grow a fig tree, and give a young listener ideas for pink flowers she can grow.

Head Gardener at Knebworth Gardens, Kevin Hilditch, takes the team around the gardens.

Producer - Dan Cocker
Assistant Producer - Jemima Rathbone

A Somethin' Else production for ±«Óãtv Radio 4

Available now

42 minutes

Factsheet - Plant list


Q – My apple tree is still blossoming alongside the apples. Is this as unusual as it seems to me? I can’t imagine any more fruit will develop so late in the year. (3 minutes 25)

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Pippa – Philadelphus (Mock-orange)

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Q – My butternut squash plant is squashless. It is a huge plant, but the squash doesn’t seem to appear. Where am I going wrong? (6 minutes 05)

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Bunny – Squash ‘Honeyboat’

Squash ‘Harrier’ F1 Hybrid

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Q – I have a few Kaffir Lime trees. They all have some problems. The first lot have yellow spots on the leaves and white residue underneath with some grainy substance too, and the latest plant have markings on the leaves. What are these and how can I treat it? (8 minutes 25)

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Q – I have Peppermint plants are in large pots on my patio. All summer there were ample supplies of leaves. But as the season draws to a close – what is the best thing to do with the plant? Can you give me advice on how to harvest, wash, dry, store etc (11 minutes)

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Bunny – Peppermint ‘After Eight’ (Mentha piperita)

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Q – I have a small garden but I wish to grow a Plum and a Fig tree. I am sure the plum tree will grow but am I being optimistic in thinking a fig tree could grow in Aberdeenshire? And can I get varieties which grow no larger than 7 feet (2.13m). Ìý(14 minutes)

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Bob – Ficus carica ‘B°ù³Ü²Ô²õ·É¾±³¦°ì’

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Bunny – Desert King

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Q – Have the panel any suggestions on how to deal with grass snakes? (18 minutes 30)

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Q – I have a strange white growth which is the size of a medium-sized cabbage in my garden. I have already dug out 2 of these – what are they and how should I deal with them? (20 minutes 15)

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Bob – Giant puffball

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Q – I am growing a Virginia Creeper up a gable which is very slow growing. Could the panel suggest a faster growing plant – perhaps a species of ivy which will cover the majority of the gable within a few years. The weather is wet and windy here and the soil is acid. (22 minutes 10)

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Bob – Actinidia

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Bunny – Hedera helix Cristata – ‘Parley Crested’ ivy

Pyracantha

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Q – My two-year-old daughter has requested ‘mommy, daddy, grow pink flower’. What would the panel suggest? (24 minutes 50)

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Kevin – Rose

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Pippa – Liatris spicata

Pink Sweet peas

Pink cornflowers

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Bunny – Pink dianthus

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Bob – Poppies

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Q – Some months ago I planted 10 seeds of Dierama ‘Autumn Sparkler’. After a long wait they have germinated, and I am now asking for advice on what to do next. They are currently in small pots. (27 minutes 45)

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Q – I would like to plant some trees in a field to help the environment and provide cover for my cattle. I would like to see something in my lifetime. Can the panel give me some advice on what species to plant – native species preferred. (29 minutes 45)

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Bunny – Tilia platyphyllos

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Q – I have cleaned out all the organic detritus from my gutters. Can this be used in someway in the garden, as it seems to be a waste to throw it away. (34 minutes 45)

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Q – I remember reading that when you cut back lavender after flowering you should not put it in the compost as lavender can inhibit other plants growing. Is this true? (35 minutes 45)

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Q – I would love to make compost here in South West Florida. I have very poor sandy soil and needs it badly but how can I make compost indoors without inviting an army of cockroaches into my home. I can’t make it outside because of snakes. (37 minutes 25)

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