coronavirus
Leaf Spot in Iris Sibirica
How to identify and treat leaf spot in Iris Sibirica.
potted_plant
Iris Sibirica care requirements
water
Consistently moist to wet soil; more moisture-tolerant than bearded irises. Water regularly during growing season; can tolerate boggy conditions
soil
Humus-rich, fertile soil with consistent moisture; tolerates slightly acidic to neutral pH. Good drainage still important to prevent root rot
light
Full sun to partial shade; at least 4–6 hours of direct sunlight for optimal flowering
symptoms
Symptoms to look for in Iris Sibirica
- fiber_manual_recordCircular brown or black spots
- fiber_manual_recordYellow halos around spots
- fiber_manual_recordPremature defoliation
help
Common causes in Iris Sibirica
Multiple fungal and bacterial pathogens. Favoured by wet foliage and warm temperatures.
healing
How to treat leaf spot in Iris Sibirica
Remove affected leaves. Apply appropriate fungicide or bactericide.
shield
Preventing leaf spot in Iris Sibirica
Water at soil level. Improve air circulation. Practise crop rotation.