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Herbaceous Perennial
Bushy
H3 (half hardy - unheated greenhouse/mild winter)
Blue, Purple and White in Summer
Green in Autumn, Spring, Summer and Winter
0.5-1 metres
0.1-0.5 metres
2-5 years
penstemon 'Stapleford Gem'
Plantaginaceae
Penstemon may be deciduous or evergreen perennials or subshrubs, with simple, narrow leaves and racemes or panicles of bell-shaped or funnel-shaped flowers in summer and early autumn
'Stapleford Gem' is a bushy semi-evergreen perenial to 75cm in height, with ovate leaves and narrow panicles of tubular bell-shaped flowers 3.5cm in length, tube purple flushed with blue, lower lobes whitish
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Award of Garden Merit
Grow in fertile, well-drained soil in full sun or partial shade. In cold areas, protect plant overwinter with dry winter mulch
Propagate by softwood cuttings in early summer or semi-hardwood cuttings in midsummer. Propagate by division in spring
Cottage/Informal Garden or Flower borders and beds
Deadhead after flowering to maintain vigour. Then cut back to base in early spring
May be attacked by slugs, snails, glasshouse red spider mite, and leaf and bud eelworms
Generally disease free
© The Royal Horticultural Society 2011 / RHS Registered Charity № 222879/SC038262