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Brown Spots in Philadelphus

verifiedReviewed by the GreenScout Team

Philadelphus coronarius, commonly known as Mock Orange, is a vigorous deciduous shrub celebrated for its powerfully fragrant, pure white flowers blooming in late spring to early summer

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Philadelphus care requirements

These care conditions are most relevant to brown spots in Philadelphus. Check each one as a potential cause.

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Light
Full sun to partial shade; prefers at least 6 hours of sunlight daily; tolerates light shade
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Water
Moderate watering; water regularly during establishment and growing season; fairly drought-tolerant once mature
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Humidity
Average humidity; no special requirements
symptoms

Symptoms to look for in Philadelphus

  • fiber_manual_recordBrown patches on leaves
  • fiber_manual_recordCrispy brown areas
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Common causes in Philadelphus

  • fiber_manual_recordFungal leaf spot
  • fiber_manual_recordSunburn
  • fiber_manual_recordBacterial blight
  • fiber_manual_recordCold damage
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How to diagnose brown spots in Philadelphus

Sunburn: bleached patches facing light source. Fungal: brown spots with rings. Bacterial: water-soaked spots turning brown.

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How to treat brown spots in Philadelphus

Remove affected leaves. Treat with appropriate fungicide or bactericide. Adjust light exposure.

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Preventing brown spots in Philadelphus

Avoid direct midday sun. Improve air circulation. Water at soil level.

Other Philadelphus problems

Brown Spots in Philadelphus — Causes & Treatment | GreenScout