Moth Orchid
Phalaenopsis spp.
Evidence Level
Moderate
Sources
6 Reviewed
Knowledge Ver.
KGS v1.0
Last Reviewed
June 2026
What do you want to do?
Decision Planners
Customized watering and soil recommendations based on KGS v1.0 data.
Environmental Context
Watering Recommendation
Soil Recipe
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Use calculators and guides to turn this plant profile into a practical care routine.
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Fertilizer Burn on Houseplants: Symptoms & Fix Guide
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Plant Watering Calculator: How Often to Water
Calculate the correct watering frequency for your plant based on species, pot size, soil type, season, and climate.
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Troubleshooting Guide
1 Why are my orchid leaves turning yellow?
Diagnosis: Overwatering (if bottom leaves) or natural aging (if oldest leaf)
Treatment: If multiple, allow potting medium to dry; check roots for rot.
Prevention: Water only when roots are silvery and medium is dry.
2 Why isn't my Phalaenopsis blooming again?
Diagnosis: Lack of temperature drop or insufficient light
Treatment: Provide a 10–15°F drop at night for a few weeks; give bright indirect light.
Prevention: Maintain proper light and seasonal temperature change.
3 Why are the flower buds turning yellow and falling off?
Diagnosis: Bud blast – drafts, dry air, or inconsistent watering
Treatment: Keep plant in stable conditions; increase humidity; avoid moving.
Prevention: Stable environment during bud formation.