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Stephanie Hafferty provides her pick of the more unusual perennials for tasty and nutritious meals

Pick sprouting broccoli shoots before the tight buds open into bitter, bright-yellow flowers. The ones you want for harvesting grow as short shoots coming from the upright main stems. They tend to be

HOW TO GET GREENER...

Plants that return each year create a framework for borders

There’s not much happening outdoors at the moment, but if you follow the prepping advice of these RHS stars, you’re guaranteed a fabulous display later in the year – and you’ll save money too

Apios americana , known as the potato bean ...