It's a creature that has been crawling around the earth's surface since the time of the dinosaurs. There are estimated to be more than a million of them for every human on earth. But what do they actually do? Dr Andy Salisbury, Principal RHS Entomologist delves into the fascinating world of ants and their effect on our gardens. Meanwhile in Hackney, Clair Battaglino welcomes us to Rainbow Grow, an LGBTQ+ community gardening project that brings multiple generations together. Plus professional wildlife gardener and fellow podcaster Ellie Mitchell from The Wildlife Garden Podcast offers tips on how to welcome invertebrates great and small to your plot.

Useful links

What have wasps ever done for us? The answer might surprise you, as we meet entomologist Dr Seirian Sumner, author of Endless Forms: The Secret World of Wasps. Food and garden writer Rekha Mistry offers advice on growing turmeric and ginger at home, while RHS Garden Hyde Hall's very own veg growing guru Matthew Oliver gives tips on growing chilli peppers.

Useful links

As summer hits its stride we head into the orchards at RHS Garden Wisley to meet Sheila Das and Liz Mooney. They explain how the garden is greening up its act, bringing wildlife and wildflowers into the heart of the productive growing spaces. Then we head to Alresford in Hampshire, to meet watercress grower Tom Amery who shares the secrets of growing this uniquely healthy British favourite. Plus author Sandra Lawrence tells the tale of an unsung hero of horticulture, the mysterious Miss Willmott – a gun-carrying Edwardian plant collector with a complex personal life.

Useful links

This week we visit the World Food Garden at RHS Wisley to see how new eco-friendly ways of growing are taking shape. Guy Barter gives his expert guide to brassica growing for bumper crops of Brussels sprouts, kale and kalettes next winter. Plus a fond farewell to Sue Biggs CBE, who's been Director General of the RHS for the last 12 years – hear her reminisce about some personal highlights and a close encounter of the royal kind...

Useful links

Are plants passive green things, just waiting for the next passing mouth to munch on them? Or do they sometimes fight back? This week's programme is devoted to the botanical poisoners, the tricksters and the carnivores that turn the tables and seek revenge on the animal kingdom. Featuring Amy Stewart, author of Wicked Plants – The A-Z of Plants That Kill, Maim, Intoxicate and Otherwise Offend; RHS Editor and flytrap fan Gareth Richards; and Dr Chris Thorogood, Deputy Director of Oxford Botanic Garden.

Useful links: ►Wicked Plants [book] ►RHS advice on potentially harmful plants ►Learn more about carnivorous plants ►Oxford Botanic Garden & Arboretum 

The greatest flower show on earth is back in its traditional time and place at the Royal Hospital in Chelsea, in spring. And what a show! Join us as we meet the designers of the Gold medal-winning 'A Rewilding Britain Landscape' garden to explore their portrayal of how the return of a long-lost species, the beaver, can transform landscapes and ecology. BBC Gardeners' World presenter Joe Swift gives a tour of his bee-friendly garden and we meet 'Cloud Gardener' Jason Williams and fellow balcony gardener Bea Tann.

Useful links:

Did you know that bumblebees have a 75% higher metabolic rate than hummingbirds? These furry insects need a lot of energy! And your neighbourhood could help fuel our native bumblebees to fly 1 million miles. The secret is plants. We speak to RHS wildlife expert Helen Bostock and the pollinator team at RHS Science who have designed three planters that will give bees, and people, a real boost. Podcast hosts Guy Barter and Gareth Richards discuss companion planting, and Lucy Bellamy shares some simple yet fabulous planting combinations from her latest book, Grow 5.

Useful links

Find out more about the RHS bumblebee planters

RHS wildlife gardening hub

Grow your own fruit and veg

Grow 5 by Lucy Bellamy

This week we're heading out into the darkness to meet some surprising garden friends – bats. These furry night fliers are surprising garden helpers, hoovering up all kinds of mosquitos and midges that might otherwise be biting us instead. Shirley Thompson MBE has been at the forefront of UK bat conservation for almost 40 years and she offers advice to gardeners on how we can all play our part in helping keep bat numbers strong.

Did you know that some cacti grow on trees and bloom at night? Meet the spectacular moonflower, Selenicereus wittii, an epiphytic cactus from the Amazonian rainforest. Sally Petitt of Cambridge University Botanic Garden tells the tale of how it bloomed in Britain last year, for the first time ever. Plus expert veg grower Matthew Oliver from RHS Garden Hyde Hall gives some brilliant tomato-growing tips, particularly for the tricky-but-tasty beefsteak varieties.

Useful links

RHS advice on bats in your garden

Stars of the Night (Wild About Gardens pdf all about UK bats)

Secrets of the Moonflower (Cambridge University Botanic Garden)

RHS advice on how to grow tomatoes

Visit RHS Garden Hyde Hall

This week we meet Michael Marriott, one of the UK’s foremost rosarians. Michael shares his expertise from a lifetime of rose growing, which is distilled into his new book, RHS Roses: An Inspirational Guide to Choosing and Growing the Best Roses. Plus troubleshooting tips on rose growing from the RHS Gardening Advice team.

Matthew Oliver, horticulturist and veg grower extraordinaire continues our greenhouse growing mini-series with a piece from the beautiful glasshouse at the heart of RHS Garden Hyde Hall. Hear seasonal GYO advice and first-hand hints on how to grow melons with exceptional flavour.

Useful links: ►RHS Roses: An Inspirational Guide to Choosing and Growing the Best Roses ►RHS advice on how to grow roses ►Global Growth Vegetable Garden ►How to grow melons

Join us as we celebrate 200 years of spreading gardening knowledge with RHS educational programmes. Whether you want to travel the world on botanical adventures for a Master of Horticulture qualification, or for your children to learn how to plant seeds, we are there for you. An RHS course can open the door to a fantastic career in gardening, and we hear from students past and present who share their stories.

Study & learn with the RHS