Plectranthus argentatus 'Silver Shield' (Silver Shield Plectranthus)
Plectranthus argentatus 'Silver Shield' (Silver Shield Plectranthus)
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Plectranthus argentatus 'Silver Shield' (Silver Shield Plectranthus) is a striking Australian native perennial valued for its velvety, silver foliage and easy-care nature. This compact plant forms a mound of broad, heart-shaped leaves covered in soft, silvery hairs that create a shimmering effect in the garden. The foliage provides excellent contrast to green-leaved plants and brightly coloured flowers. In summer, it produces small, pale blue to white flower spikes that attract pollinators, though it is primarily grown for its spectacular foliage.
Ideal for borders, containers, mass plantings, and as a ground cover, 'Silver Shield' thrives in well-drained soil and partial shade to full sun. It is drought-tolerant once established and can handle a range of conditions, including coastal sites. This low-maintenance plant is particularly valued for its luminous foliage, rapid growth, and ability to brighten shaded areas with its reflective leaves.
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Mature height
0.6–1 metre
Mature width
0.8–1.2 metre
Spacing
0.8–1 metre
Evergreen/Deciduous
Deciduous
Foliage
Silvery-grey foliage; pale blue or white flowers
Flowering Period & Fruit Development/Harvest
Flowers summer to autumn (December to April)
Sun tolerance
Partial shade to full sun
Maintenance
Low maintenance. Pinch back to encourage bushiness; cut back if leggy
Root System
Spreading, non-invasive root system suitable for garden beds and containers