Plant guide:🌶️ Chili Pepper
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⚠ ModerateHealthy foliage but poor fruit set � a classic sign of temperature or pollination stress during flowering.
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Growth
Blossom Drop � Flowers Falling Before Fruiting
Commonly affects: Capsicum annuum, Capsicum chinense (Chili Pepper)
Flowers form normally but wither and drop off within a few days, without ever setting fruit. The plant otherwise looks healthy, with green foliage and continued new flower production, but very few flowers actually convert to peppers.
Potential Causes
- 1Daytime temperatures above 32�C or nighttime temperatures below 15�C stressing pollen viability
- 2Low humidity causing pollen to dry out before pollination can occur
- 3Poor pollination due to lack of wind movement or pollinating insects, especially indoors
- 4Excess nitrogen fertiliser encouraging leafy growth at the expense of fruit set
- 5Inconsistent watering causing general plant stress during flowering
Solution Steps
- 1Move container-grown plants to a location with more airflow, or gently shake flowering stems by hand daily to aid pollination.
- 2Provide light afternoon shade during heatwaves above 32�C to protect flower viability.
- 3Reduce nitrogen-heavy feeding and switch to a bloom-boosting fertiliser higher in phosphorus and potassium once flowering begins.
- 4Maintain even soil moisture � avoid letting the plant dry out completely between waterings.
- 5Mist flowers lightly in the morning during dry spells to help pollen adhere and germinate.
Prevention Tip
Keep daytime temperatures between 21�29�C where possible, and hand-pollinate indoor or greenhouse plants every few days using a small brush or by gently flicking the flower stem.
