Guide to hardy plants
Jun 14, 2022
4 minutes
Lythrum (purple loosestrife)
These plants have slender 3ft (90cm) spikes of magenta flowers around midsummer. Two fine varieties are Lythrum salicaria ‘Robert’ and L.s. ‘The Beacon’, the latter being deeper in colour. They like sunny places, but will grow in almost any soil. They can be increased by division.
Monarda
Clusters of scarlet, pink, mauve or purple flowers appear in mid and late summer with aromatic leaves. They are about 3ft (90cm) high and spread rapidly. Two of the best are ‘Cambridge Scarlet’ and ‘Croftway Pink’. All will thrive in practically any soil and reasonably open position. They are increased by division.
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