How to create your own spring spectacular, lessons from life with a living wall and Adam Frost’s shrub of the month

David Maxwell heads to Hillsborough Castle and Gardens where nearly 20,000 spring bulbs are blooming. Head Gardener, Claire Woods shows off the large collection of daffodils bred in Northern Ireland and gives some tips on getting the best out of these bulbs. Ann FitzSimons explains what she’s learnt after living with a living wall for 2 years and Adam Frost reveals his shrub for April (Euonymus nanus var. turkestanicus). In studio, David is joined by Anna Hudson, who will suggest what we can all sow now for a home grown harvest later this year and, with David, she’ll take questions from listeners including suggestions for a shallow planter and how to cure an unhappy looking holly tree. Email the programme at gardenerscorner@bbc.co.uk