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Penstemons flower over a long period, from mid-summer to the first frosts. 'Stapleford Gem' is a popular variety, thanks to its beautiful, large lilac-purple flowers which have pale lilac-pink upper lips and white lower lips and throats, marked with purple lines. These blooms help to attract beneficial insects to the garden. Plant in well-drained soil in sun or partial shade. It is worth taking a few cuttings in late summer to overwinter indoors as an insurance policy as plants are not fully hardy.
Cultivar: Stapleford Gem
Plant type: Tender perennial
Flower colour: Lilac
Foliage colour: Mid-green
Feature: Flowers, Attractive to wildlife
Sun exposure: Full sun, Partial shade
Soil: Well-drained/light, Moist
Hardiness: Half hardy
Skill level: Experienced
Time to take cuttings: July to August
Flowering period: July to October
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