Centranthus

Centranthus ruber

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verifiedReviewed by the GreenScout Team

A vigorous perennial with red, pink, or white flower clusters held on grey-green foliage, blooming throughout summer and into autumn. Extremely drought-tolerant and adaptable, it thrives in poor, well-drained soil and is perfect for rockeries, walls, and dry borders. This plant is beloved by butterflies and bees, making it excellent for pollinator gardens.

Common Problems

Select the problem your Centranthus is experiencing to get a treatment guide.

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Overwateringchevron_right

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Root Rotchevron_right

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Leggy Growthchevron_right

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Wiltingchevron_right

Care Guide

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Light

Full sun; requires 6+ hours of direct sunlight for best flowering and foliage color

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Water

Drought-tolerant once established; water sparingly. Allow soil to dry between waterings; overwatering causes poor growth

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Soil

Well-draining, poor to moderately fertile soil (even rocky or gravelly soil is acceptable). Avoid rich soil that promotes excessive foliage

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Fertiliser

Minimal fertilizer needed; avoid nitrogen-heavy fertilizers. Use balanced fertilizer sparingly in spring if needed

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Temperature

Warm-loving perennial; prefers 15–25°C. Very cold winters may damage plants in harsh zones

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Humidity

Tolerates low humidity well; prefers dry conditions. Good air circulation is essential

Toxicity

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Non-toxic; safe for households with children and pets

Common Diseases

filter_dramaRoot Rotchevron_right grainLeaf Spotchevron_right

Common Pests

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Seasonal Care

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Resume regular watering and feeding as growth picks up.

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Peak growing season. Water and feed regularly.

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Reduce watering as growth slows. Stop heavy feeding.

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Minimal watering and feeding. Protect from frost if needed.

Frequently Asked Questions

Why does Centranthus grow so well in wall crevices?

It's extremely drought-tolerant and adapts readily to poor, well-drained, even rocky soil, which is exactly what makes it thrive in rockeries, walls, and dry borders where richer soil isn't available.