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Slow Growth in St John's Wort

verifiedReviewed by the GreenScout Team

St John's Wort is a hardy perennial herb with small, narrow leaves and bright yellow, five-petaled flowers that bloom profusely in summer

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St John's Wort care requirements

These care conditions are most relevant to slow growth in St John's Wort. Check each one as a potential cause.

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Light
Full sun (6–8 hours daily); requires bright light for optimal flowering and compound development.
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Fertiliser
Minimal fertilizer; generally thrives without supplemental feeding; avoid overfertilizing.
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Temperature
Very cold-hardy; tolerates a wide temperature range (40–85°F); thrives in cool to warm climates.
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Symptoms to look for in St John's Wort

  • fiber_manual_recordLittle to no new growth
  • fiber_manual_recordStagnant development
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Common causes in St John's Wort

  • fiber_manual_recordLow light
  • fiber_manual_recordPoor nutrition
  • fiber_manual_recordRoot-bound
  • fiber_manual_recordWrong season
  • fiber_manual_recordOverwatering
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How to diagnose slow growth in St John's Wort

Assess light levels, feeding schedule, and pot size.

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How to treat slow growth in St John's Wort

Move to brighter spot. Feed regularly during growing season. Repot if root-bound.

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Preventing slow growth in St John's Wort

Regular feeding. Adequate light. Annual pot size check.

Other St John's Wort problems

Slow Growth in St John's Wort — Causes & Treatment | GreenScout