Onopordum Plant Seeds - Planting & Growth Guide
Onopordum, commonly known as Cotton Thistle, is a striking biennial plant that adds bold texture to your garden. Known for its towering height and silvery foliage, this ornamental thistle is a favorite among pollinators.
Growing Instructions:
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Planting Season: Best planted in spring or early summer.
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Soil: Prefers well-drained, sandy or loamy soils.
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Light: Full sun for optimal growth.
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Watering: Water moderately, allowing soil to dry between waterings.
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Spacing: Sow seeds 24-36 inches apart.
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Germination: Seeds germinate in 2-4 weeks.
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Maintenance: Minimal care; deadhead flowers to encourage further blooms.
