Common Pests & Diseases
Diseases
May be subject to a downy mildew, grey moulds, powdery mildews and a fungal leaf spot
Pests
May be attacked by slugs, snails, aphids and leaf and bud eelworms
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penstemon 'Precious Gem' · Pests & diseases
penstemon 'Precious Gem' · Penstemon 'Precious Gem'
Penstemon cultivation in fertile, well-drained soil in full sun or partial shade. In cold areas, protect plant overwinter with a dry winter mulch
Watering: Moderate regular watering, avoid prolonged drought and stagnant waterloggingSunlight: Full sun · Partial shadeInformation to be completed