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Leaf Spot in Lemon Verbena
How to identify and treat leaf spot in Lemon Verbena.
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Lemon Verbena care requirements
water
Keep soil consistently moist but not waterlogged during the growing season; reduce watering in winter or dormancy. Allow the top inch of soil to dry between waterings.
soil
Well-draining, fertile soil with a pH of 6.0–7.0; mix in compost or aged manure to improve organic matter.
light
Full sun (6–8 hours daily); tolerates partial shade but flowering and fragrance are best in bright conditions.
symptoms
Symptoms to look for in Lemon Verbena
- fiber_manual_recordCircular brown or black spots
- fiber_manual_recordYellow halos around spots
- fiber_manual_recordPremature defoliation
help
Common causes in Lemon Verbena
Multiple fungal and bacterial pathogens. Favoured by wet foliage and warm temperatures.
healing
How to treat leaf spot in Lemon Verbena
Remove affected leaves. Apply appropriate fungicide or bactericide.
shield
Preventing leaf spot in Lemon Verbena
Water at soil level. Improve air circulation. Practise crop rotation.