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botanical name:
Penstemon 'Stapleford Gem'
Penstemon 'Stapleford Gem' © Deeproot Plant Base
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family:  Plantaginaceae
characteristics: perennial, semi-evergreen
height: 0.75m
width: 0.45m
growth rate: medium
growth habit: bushy
leaf colour: green
flower colour: lilac
main season: Summer
aspect: full sun, part shade
conditions: moist soil
preferred soil pH: any
minimum temp: -20°C
USDA zone: 8 to 9
description:
Large leaves and large tubular-bell shaped, pale lilac-purple flowers with upper lips of pale pink-lilac and lower lips and throats white with purple lines, mid-summer to mid-autumn

cultivation:
Fertile, well drained soil in full sun or partial shade. Apply a mulch before winter. Dead-head after flowering.

propagation:
From cuttings. Non-flowering tip cuttings taken in late summer or early autumn are best, keep frost free over winter.

other notes:
RHS AGM

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