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The GQT team are in Tring for this week's horticultural programme.

How can I get rid of slugs without using pesticides? Will rhododendrons grow on chalky soil? Should we remove dead trees or leave them for wildlife?

Joining Peter Gibbs to answer these questions and more in front of a live audience in Tring are pest and disease expert Pippa Greenwood, plantsman Matt Biggs, and garden designer Juliet Sargeant.

Also on the programme, Pippa Greenwood visits her old lab at the RHS Wisley Plant Science Laboratory which will shortly open its doors to the public to showcase past and present research.

Producer: Daniel Cocker
Assistant Producer: Rahnee Prescod
Executive Producer: Louisa Field

A Somethin' Else production for Â鶹Éç Radio 4

Available now

42 minutes

Last on

Sun 22 Jan 2023 14:00

Plant List

Questions and timecodes are below. Where applicable, plant names have been provided.

Ìý

Q – I grow all my hostas in pots and containers but I have lots of trouble with slugs.Ìý I don’t use pesticides or slug pellets - nothing seems to work.Ìý I never get through the season with a full show of hostas.

(2 minutes 0 seconds)Ìý

Ìý

Q – With all the cold weather and rain my Pittosporum tobiraÌý'Nanum'

and EuphorbiaÌýmellifera have suffered really badly and do you have any suggestions of how I can get them to recover.

(6 minutes 08 seconds)Ìý

Ìý

Q – We’re on the chalky soil very much like Whipsnade Zoo but in between Ashridge has got some stunning rhododendrons of which I’m very envious.Ìý Can the panel recommend any rhododendrons we might be able to grow on our chalky soil?

(9 minutes 0 seconds)Ìý

Ìý

Juliet –Ìý

Inkarho

Ìý

Q – We moved home last year and we’ve been building an office in the garden with a green roof.ÌýÌý I wonder if the panel can suggest some low maintenance planting schemes that are hopefully wildlife friendly as well.

(11 minutes 25 seconds)Ìý

Ìý

Juliet –

SedumÌý

Thyme

Chives

Oregano

Ìý

Q – I recently added rose beds to my son’s sterile AstroTurfed garden.Ìý We discovered a good eight inches of hardcore under the AstroTurfÌýwhich is still there albeit disturbed.ÌýÌý I used a mixture of topsoil and green manure, but this also seemed very sterile.Ìý I didn’t notice any worms.Ìý Will these arrive naturally, or should I be doing something else to encourage them?

(22 minutes 21 seconds)Ìý

Ìý

Q – What shrubs are suitable for going in pots in a south-facing courtyard garden?Ìý

(25 minutes 19 seconds)Ìý

Ìý

Matt –

Hardy Hibiscus

AlyogyneÌýhuegelii

Pelargonium,ÌýFragrans Group (Sc)

Coprosma

Ìý

Pippa –

Japenese Acers

ArbutusÌý

Ìý

Q – Our whitebeam tree has died.Ìý Should we have it taken down, or leave it as it is for the birds?

(29 minutes 44 seconds)Ìý

Ìý

Juliet –

Rosa,Ìý'Rambling Rector'

Honeysuckle

ClematisÌýmontana

Ìý

Q – I volunteer at Whipsnade Zoo.ÌýÌý We’ve recently started up a native species group where we are trying to renovate some areas in the Zoo and turn them into true native species areas.Ìý And there seems to be quite a lot of enthusiasm and we want to keep that going so I’d be very grateful for any tips or plant advice etc.Ìý

(35 minutes 59 seconds)Ìý

Ìý

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