Q What’s a high ni­tro­gen fer­tiliser?

Garden News (UK) - - The Problem Solver -

Marie Mal­li­son, Hull

A A read­ily avail­able form of ni­tro­gen for plants is am­mo­nium sul­phate from gar­den cen­tres and DIY su­per­stores. Liq­uid feeds based on net­tles have a small amount, but only a frac­tion of that of am­mo­nium sul­phate. Dried blood would be the best op­tion. Gar­den Di­rect (www. gar­dendi­rect.co.uk; tel: 0845 217 0788) sup­ply mail order.

Use dried blood as a top dress­ing to give leafy plants a boost

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