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Penstemon 'Garnet'
Penstemon gloxinioide
'Garnet'
Growth Characteristics Penstemon 'Garnet' is a perennial herbaceous plant characterized by its vivid purple flowers. It grows to a height of approximately 60–90 cm; its stems are upright, and its leaves are ovate or elliptical. It blooms from late spring to late autumn and thrives in sunny locations. Propagation Methods Penstemon 'Garnet' is primarily propagated by seeds or cuttings. For seed propagation, seeds are sown in spring or autumn, and germination takes about 2–4 weeks. For cuttings, healthy stems can be cut in early summer and propagated via water or soil cuttings. Cultivation Methods - Soil: It grows well in fertile, well-drained soil. It is recommended to mix in sand and compost to improve drainage. - Watering: Water about 1–2 times a week, ensuring the topsoil is dry before watering. - Sunlight: It requires sufficient sunlight; growth may be sluggish in partial shade. 4. Fertilizer: Apply slow-release fertilizer at intervals of 4 to 6 weeks during the growing season. Uses in the GardenPenstemon 'Garnet' features vibrant colors and a beautiful shape, making it ideal for decorating garden borders or placing in the center of flower beds. It can also be planted alongside other perennials to achieve diverse planting effects. Important Pests and Diseases & Control Methods - Diseases: - Powdery Mildew: White powder may appear on the leaves. Ensuring good ventilation and planting at appropriate intervals helps prevent this. - Root Rot: Roots can rot if the soil is too wet, so proper drainage is essential. - Pests: - Aphids: Aphids may appear on newly growing parts. They can be removed with a water jet or insecticides can be used if necessary. - Snails and Slugs: They are nocturnal and feed on leaves. To prevent this, lures can be used to attract snails, or they can be physically removed. With proper care, Penstemon 'Garnet' can maintain its beauty in the garden for a long time.
Plant Type
Plant Family
Plantaginaceae
Height
60~90cm
Spread
30~60cm
Colors
pink
Bloom Period
June to August
Water Needs
commonly
Exposure
Sunny
Freezing Resistance
-30°C
Penstemon 'George Home'
Penstemon hybrid 'George Home'
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