Gardening with the RHS

From Sussex to South Carolina, this week we're exploring what happens when plants take over. What do you get if you mix poor quality farmland, a passion for wildlife and a biodiversity crisis? The answer is a pioneering rewilding project that has stunned ecologists and revolutionised ideas about nature conservation in Britain. We head to Knepp Estate in Sussex to meet Isabella Tree and find out more.

Bill Finch is a naturalist who grew up in the Deep South of the USA. Here he witnessed a very different form of rewilding from an invasive plant, kudzu (Pueraria montana). It became infamous during the 20th century for swamping roadsides and blanketing everything in its path - becoming known as a scourge and 'the vine that ate the South'. But is it as much of a problem as people think?

And finally, podcast regulars Fiona Davison and Gareth Richards discuss the history of two very wild plants, ivy (Hedera helix) and Japanese knotweed (Reynoutria or Fallopia japonica).

More information

Knepp Wildland

Rewild your garden with tips from Springwatch

RHS wildlife gardening hub

Learn more about ivy

Ivy on houses

RHS ivy monograph

Japanese knotweed advice from the RHS

This week we visit Yorkshire to talk to allotmenteer and YouTuber Mothin Ali (MyFamilyGarden), to find out how he's preparing for the growing season ahead. Including tips on chillies, tomatoes and green manures (also known as cover crops). RHS Gardening Advisor Nikki Barker shares expert tips on how to garden on chalky soil. Gareth Richards has an ode to an 'allotment workhorse' – a fragrant shrub with abundant crops of healthy berries – the blackcurrant.

Useful links

RHS Grow Your Own pages

Mothin Ali - My Family Garden (YouTube)

Advice on green manures / cover crops

How to grow chillies and tomatoes

Gardening on chalk

How to grow blackcurrants

Today we're taking a trip back in time with Dr Chris Thorogood, Head of Science at Oxford Botanic Garden. Enter long-forgotten worlds of the weird and wonderful plants which flourished before, during and after the age of dinosaurs, and discover their descendants that still flourish today. Ferns are among these 'living fossils', and RHS Gardening Advisor James Lawrence shares some favourite varieties to grow in the garden* in discussion with colleagues Nikki Barker and Julie Henderson.

Plus, an alternative look at ancient plants with Sarah Gerrard-Jones, aka The Plant Rescuer. She's built a huge online following charting her journey into rescuing abandoned plants and championing houseplant heirlooms passed down through generations.

Useful links: ►RHS info on ferns ►RHS info on houseplants ►When Plants Took Over the Planet: The Amazing Story of Plant Evolution by Chris Thorogood ►The Plant Rescuer – The Book Your Houseplants Want You To Read by Sarah Gerrard-Jones

Contributors: Chris Thorogood, Sarah Gerrard-Jones

Today’s show focuses on specific ways we can rewild gardens. We’re exploring how we can intervene in space spaces to create dynamic habitats – without using herds of free-roaming animals. Isabella Tree, co-author of The Book of Wilding and one of the foremost rewilding experts in the UK, chats about her own experiences rewilding her estate and her top tips for getting into a wilder mindset. We’re then shifting gears a bit – turning away from specific practices, to look at some of the fauna pivotal to our natural ecosystems. We visit RHS Garden Wisley to hear the curious case of the roman snail colony there. And finally, we catch up with Lloyd of the Flies Creator Matt Walker and RHS Entomologist Andy Salisbury to learn about the new family-friendly insect trails across all of our gardens.

Links:

The Book of Wilding

Roman Snails at Wisley

Summer holiday fun at RHS Gardens