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Postbag: Cambridge University Botanic Garden

How do I make my cactus healthier? Which 1930s-style plants could I grow indoors? How do I prune mistletoe? Peter Gibbs visits Cambridge University Botanic Garden.

How do I make my cactus healthier? Which 1930’s style plants could I grow indoors? How do I prune mistletoe?

Peter Gibbs and his panel of horticultural experts are at Cambridge University Botanic Gardens for this week’s postbag episode of Gardeners’ Question Time. Joining Peter on a tour of the gardens are Head Gardener of Horatio’s Garden Ashley Edwards, ethnobotanist James Wong, and garden designer Bunny Guinness.

Alongside the questions, the Head of Horticulture at Cambridge University Botanic Gardens, Sally Petitt, gives the pane a tour of the greenhouses and gardens on the historic site.

Producer: Dominic Tyerman
Assistant Producer: Dulcie Whadcock

A Somethin' Else production for Â鶹Éç Radio 4.

Available now

42 minutes

Last on

Sun 3 Dec 2023 14:00

Plant List

(3 minutes, 25 seconds)

Q— Should I put citrus peel in the compost?

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Rhubarb

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(6 minutes, 1 seconds)

Q—I have a ficus elastica 'tineke'. It won’t stop growing. It’s almost to the ceiling. What should I do?

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Rubber plant

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Bonsai

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Q— Cambridge University Botanic Gardens- Main Walk

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Ranunculaceae

Potato

Thyme

Nettle

Euphorbia

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(11 minutes, 33 seconds)

Q— I’ve got mistletoe on my apple trees. How do I prune it? And will it grow back?

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(14 minutes 54 seconds)

Q—How do you clean a greenhouse thoroughly whilst sparing the beneficial insects and organisms?

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Tomato

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(17 minutes 30)

Q— I’ve planted ‘jitka’ F1 and ‘flyaway’ f1carrots, however they’ve all got badly forked roots so I had to get rid of them. How do I combat this?

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F—Cambridge University Botanic Gardens- Winter Garden

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Sarcococca

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Mahonia

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(22 minutes, 8 seconds)

Q— My mahonia has been flowering already. I know it created nutrients for insects. What can I grow to provide nectar for insects over the winter?

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Mahonia ‘Soft Caress’

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Snowdrops

Sarcococca

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Hellebore

Snowdrops

Salix gracilistyla 'Mount Aso'

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Daphne

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(25 minutes, 10 seconds)

F

Q—How do I make my cacti healthier?

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(30 minutes, 45 seconds)

Q—I cut off the top of a pineapple and tried to grow it. It’s in a north facing conservatory. How do I know when to pick the pineapple, and will the flowers that have sprouted grow a pineapple from them?

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(34 minutes, 20 seconds)

Q— I want a 1930’s houseplant to match my décor. What could I plant?

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Fiddle-leaf fig

African violet

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Monstera

Sedum morganianum

Aspidistra

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Mother in Law’s tongue

Boston fern

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