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

Q – I have wonderful Lupins but they are now going over. Should I chop the flowers heads off to see if it will flower again, or should I simply let the seeds develop?

(1 minute 46 seconds)

Chris –

Westcountry hybrid Lupin

Tree Lupin

Q – My husband has put fabric weed control around our soft fruit bushes and artichokes. Without taking up the fabric, what is the best way of fertilising?

(4 minutes 55 seconds)

Chris –

CalendulaÌýofficinalis

Q – My dahlias are getting eaten but I can’t see any predators. How can I help them without harming other animals and organically?

(7 minutes 30 seconds)

Q – I have a ClematisÌýarmandiiÌý'Apple Blossom’, in a tall, 1 foot wide (30.5cm) planter with other plants. Many of the leaves are starting to brown, what’s going on?

(11 minutes 32 seconds)

Feature – Anne Swithinbank speaks to Elle James and Matt Smith about the boulder garden at The National Botanic Gardens of Wales.

(14 minutes)

Q – I have a rhododendron ‘Tortoiseshell Orange’ which I keep in a pot. It is browning and also seems to be being eaten. What is wrong with it?

(20 minutes 35 seconds)

Q – I have a star of Bethlehem which I’ve had for four years. It bloomed really well in the first two years but has since stopped flowering. What am I doing wrong?

(24 minutes 30 seconds)

Q – I bought three Phlomis russeliana plants. They didn’t flower last year so I planted them in a border which is 1m (3.2 foot) square. One has grown as expected but the other two are yellowing. What has happened?

(30 minutes 45 seconds)

Chris –

Phlomis fruticosa 'Lloyds Variety'

Phlomis tuberosa 'Amazone'

Q – Can sweet peppers and chilli peppers be grown in the same greenhouse without cross pollination?

(36 minutes)

Q – My son and daughter-in-law have just moved into their first home with a garden. Should I nudge them into not making the same gardening mistakes that I made, or should they learn the hard way?

(37 minutes 20 seconds)