In the garden this week: Peat-free acid compost and tomatoes | Lia Leendertz

Rejoice – a new peat-free compost for acid-loving plants. Plus top tomato tips

Chrysanthemums are thought of as naff, old-fashioned cut flowers, but the big, single-blooming types are among the most glamorous you can grow yourself. Ideal in a sunny border or allotment bed. Purchase a five-plant collection (one apiece of Orange, Yellow, White, Regal Mist Purple and Pink Allouise, pictured top) for £7.95, or 15 (three of each) for £15.90 (supplied as plugs; prices include UK mainland p&p). To order, call 0330 333 6851, quoting GUPW235. Delivery within 28 days.

The acid test

Unless you’re one of the few Britons who garden on acidic soil, you’ll need ericaceous compost to grow blueberries, azaleas and rhododendrons. This usually means peat, but Dalefoot Composts has launched a version made from naturally acidic composted bracken. It is mixed to create the perfect pH level for acid-loving plants without recourse to the teensiest drop of peat, and is naturally high in potash, too, to encourage great flowering.

Tomato tips

If you haven’t yet done so, plant out tomatoes in grow bags and pots now. There’s still a fearful chance of a late frost, so fling horticultural fleece or an old sheet over them should one threaten. It’s also time to begin feeding them weekly with an organic tomato fertiliser, training them up a strong support and nipping out side shoots.

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In the garden this week: Peat-free acid compost and tomatoes | Lia Leendertz