Troubleshooting
Florist's Gloxinia problems — and how to fix them
Florist's Gloxinia (Sinningia speciosa) is generally forgiving once you match its basics, but a few issues come up again and again. Here is what each one looks like, why it happens, and the fix.
Brown spots on leaves
Caused by water sitting on the velvety foliage, especially cold water. The marks are permanent. Always water from below or directly onto the soil and keep droplets off the leaves and crown.
Crown and tuber rot
Overwatering, soggy mix, or water pooling in the crown leads to mushy, collapsing stems and gray mould. Use a free-draining mix, water from the bottom, and never let the pot stand in water.
Bud drop and few flowers
Buds blast or fail to open from inconsistent watering, low humidity, sudden temperature swings, draughts, or too little light. Keep conditions stable, humid and bright-indirect.
Plant suddenly dies back
This is usually natural dormancy, not death. After blooming, leaves yellow and wither; gradually withhold water and rest the dry tuber in a cool (12-15C / 54-59F), dim spot for 2-3 months, then repot and restart watering when new growth appears.
Leggy growth, pale leaves
A sign of insufficient light. Move to a brighter spot with strong indirect light or supplement with a grow light, but avoid harsh direct sun.
Pests (mites, thrips, aphids, fungus gnats)
Spider mites and thrips can attack the soft foliage, while fungus gnats appear in chronically damp soil. Inspect regularly, isolate new plants, treat with insecticidal soap, and let the surface dry slightly between waterings to deter gnats.
Prevent florist's gloxinia problems before they start
Most florist's gloxinia issues are care-mismatch, not bad luck. Dial in the basics:
Florist's Gloxinia problems — FAQ
Why is my florist's gloxinia brown spots on leaves?
Caused by water sitting on the velvety foliage, especially cold water. The marks are permanent. Always water from below or directly onto the soil and keep droplets off the leaves and crown.
Why is my florist's gloxinia crown and tuber rot?
Overwatering, soggy mix, or water pooling in the crown leads to mushy, collapsing stems and gray mould. Use a free-draining mix, water from the bottom, and never let the pot stand in water.
Why is my florist's gloxinia bud drop and few flowers?
Buds blast or fail to open from inconsistent watering, low humidity, sudden temperature swings, draughts, or too little light. Keep conditions stable, humid and bright-indirect.
Why is my florist's gloxinia plant suddenly dies back?
This is usually natural dormancy, not death. After blooming, leaves yellow and wither; gradually withhold water and rest the dry tuber in a cool (12-15C / 54-59F), dim spot for 2-3 months, then repot and restart watering when new growth appears.
Why is my florist's gloxinia leggy growth, pale leaves?
A sign of insufficient light. Move to a brighter spot with strong indirect light or supplement with a grow light, but avoid harsh direct sun.
Why is my florist's gloxinia pests (mites, thrips, aphids, fungus gnats)?
Spider mites and thrips can attack the soft foliage, while fungus gnats appear in chronically damp soil. Inspect regularly, isolate new plants, treat with insecticidal soap, and let the surface dry slightly between waterings to deter gnats.