Have you ever heard of onions that can walk? David Maxwell finds out all about them from organic grower Klaus Laitenberger. April showers bring plenty of growth in the garden including to plants often considered weeds, but wild garlic and nettles can also provide a tasty lunch as David finds out when he pops in with Ann Fitzsimmons. Also on the programme, garden designer and BBC Gardeners’ World presenter Adam Frost on his new book and the ‘King of Trees’ Tony Kirkham opts for a Cherry as his tree for April. David will also be joined by Claire Woods and Brendan Little who will take on gardening questions live – [email protected]

David meets Omagh man Brian Duncan who has been breeding daffodils since the 1960s and has been awarded one of horticulture’s greatest honours. He becomes one of only 63 people who can wear the Victoria Medal of Honour. Also on the programme, why Erodiums or Stork’s bills deserve a place in your garden. And a visit to the Folk Museum where Irish Garden Plant Society members are doing what they can to create a living museum and a refuge for endangered Irish plants. All that and the experts will be taking questions live – [email protected]

Have you ever heard of a mechanical garden? Well Antrim is getting Northern Ireland’s first, and this week David Maxwell chats to designer Diarmuid Gavin about his plans for the space. It’s being created to mark the Queen’s platinum jubilee and the return of Garden Show Ireland. Also on the programme, Klaus Laitenberger on the tempting taste of home-grown tomatoes and Cherry Townsend on the importance of planning ahead with pots of bulbs. David will also be putting questions to the experts including why one listener’s orange crocuses keep vanishing. Get in touch by email – [email protected]

David Maxwell heads to Bundoran on St Patrick’s day where organic gardener Klaus Laitenberger is planting potatoes ‘Leitrim style’. He demonstrates his old Irish method of covering the seed potatoes with freshly dug turfs, showing how an area of lawn could easily provide a crop of spuds this season. Also on the programme, with seed sowing gathering pace in the garden, Amy Kelly explains why it makes sense to try heritage and heirloom varieties. They may have fallen out of favour with the supermarkets, but she says their taste, and the fact that you can save seed for next year, make them a good value choice. David visits Augher Central Primary School as part of the BBC’s ‘Little Green Fingers’ project. Teachers, pupils, volunteers there are transforming a neglected school garden into a wildlife haven and outdoor learning area. And how do you tell if that old packet of seeds at the back of the drawer is worth sowing?

In this week’s programme, David Maxwell travels to the National Botanic Gardens, Kilmacurragh in county Wicklow. The country cousin of the gardens at Glasnevin in Dublin, Kilmacurragh covers over 100 acres and enjoys a mild maritime climate where rhododendrons and Chilean exotics flourish. David walks through the crocus lawn with head gardener Seamus O’Brien and gets a sneak peak behind the scenes at a newly acquired historic walled garden. Also on the programme, Tony Kirkham chooses Arbutus unedo, also known as the strawberry tree, as his ‘tree of the month’ and Ciaran Mulholland is pruning trees at his garden at the foot of Slemish mountain in county Antrim. David will also be putting questions from listeners to expert Brendan Little including how much wheat you need to grow to produce a home grown loaf.

David explores a secret walled garden close to Belfast where globe artichokes are on the menu. Hidden Huntley is one of the 19th century ‘linen houses’ of Lagan Valley and it’s been home to Antonia Malcolm’s family since the 1920s. But there is trouble in paradise as Box blight has wiped out an important element of the gardens structure. Still, there is more than enough soft fruit to go around and rhubarb is being ‘forced’ – David finds out what difference it makes. Also on the programme, a visit to Ciaran Mulholland’s garden at the foot of Slemish where he’s dividing snowdrops ‘in the green’, work continues at Glenarm on the new woodland garden and meet the robots that garden. Get in touch with the experts on [email protected]

With more demand for space to build, gardens are getting smaller. In fact, owning a garden is just a dream for many younger people. This week, David Maxwell and the team will explore the options for those with no piece of earth to call their own. How can those with more than they need (or more than they can look after) make land available to those without. David chats to a Belfast born entrepreneur who’s developed an online platform where garden space can be rented out to those who want to grow their own food but don’t have a garden. Also on the programme, RHS Wisley curator, Matthew Pottage on making the most of the garden if you are renting your home and for those who have to garden indoors, some must have houseplants from Danae Diaz. Questions for the panel to [email protected]

At the start of the half term school holidays, David and his experts have ideas to keep the kids busy in the garden. It’s the perfect time to plant some fruit - Amy Kelly picks out some of her favourite varieties. On a visit to the National Trust’s Rowallane gardens, David’s nose leads him to the Daphne which are in full flower. Head gardener, Claire McNally also shows him a flowering quince which is clothing an old stone wall in pink blossom. Also on the programme, Judith Hooks is the first local National Trust apprentice. She explains how the programme works and why she took a second look at gardening after training as an optometrist.

Bring in the colour with cornus this winter. Presenter David Maxwell visits Maurice Parkinson at Ballyrobert Cottage Garden where the glowing stems of Cornus alba ‘Siberica’ and Cornus ‘Midwinter fire’ warm up the coldest days. Is your garden too big? The experts attempt to take the workload out of looking after a large plot. David explores renting out garden space with the local founder of the ‘Allotme’ garden rental website and the National Garden Scheme adds Northern Ireland to the famous yellow book. Questions for the team to [email protected]

This week David gets around the problem of pricey perennials by finding out just how easy many are to grow from seed. Ann Fitzsimmons recommends ‘first year flowering’ varieties and shows how sowing some seed now can save gardeners a small fortune. It’s the weekend of the RSPB’s big garden birdwatch. Listeners are invited to text in what they are seeing and Claire Barnett from the charity has all the information on how to take part. Also on the programme, the RHS is gifting 4 community or school gardens this year. David has been chatting to chief horticulturalist, Guy Barter, on what they are looking for. And in the first of a new series, Tony Kirkham, aka ‘the king of trees’ from the Royal Botanic Gardens, Kew on his favourite tree for January.