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A fitting tribute to Karl Foerster, a nurseryman and pioneer of post war landscaping schemes. A perennial clump-forming grass with upright green foliage, producing erect panicles of pinkishbrown flowers in midsummer. These age to a lovely golden hue. A very hardy grass, tolerant of shade and drought which makes it an ideal candidate for a container, otherwise use it to good effect in a relaxed planting scheme. 1.8m (6ft).

Available now 2 litre pots £10

Hardy Bottlebrush shrub.

Available later in season.

This useful border perennial produces massed clusters of pink, tubular flowers along the stem which are set off by the strong green foliage. Cut back after flowering to encourage a second flush. At 45cm (18") in height it makes it an ideal plant for the front of a bed in a sunny, moist but welldrained position.

Available now 9cm pots £5.

Canna striata, purpurea, ehmanii and others.

Available from May. 

Rarely offered herbaceous perennial for a woodland situation, with glossy leaves and scented white flowers. Up to 30cm high in flower. Moist well-drained soil.

Available now in 9cm pots £10. PLANT CODE: CHLOR-OLD

Convolvulus althaeoides is a gorgeous perennial. It will either climber or trail, bearing delicate heart-shaped, silver green leaves. From mid to late summer large, funnel shaped flowers are borne and a striking clear pink.

Available now 1 litre pots £7.50

Vietnamese coriander (Persicaria odorata) is a member of the knotweed family and is also known as Vietnamese mint or Rau Ram. It's a tender perennial and thrives from late spring to early autumn. It will eventually succumb to frost, but you can bring the plants indoors and place them on a sunny windowsill for winter harvesting. 

Available now in 1 litre pots £6.

Hardy holly leaf fern.

Available now 9cm pots £5 PLANT CODE: CRYPT-FORT-5

Culinary herb with a mild onion flavour. Hardy perennial. Mauve flowers loved by bees.

Available now 9cm pots £4. CHIVES

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