Gardenia Bud Drop Indoors: Strict Temp (55–65°F), Humidity & Acid Soil Required

Same gardenia issue, deeper dive. Gardenias are notoriously difficult indoors because they need:

• 55–65°F during bud/bloom. Above 70°F → bud drop. Below 55°F → deformed buds.
• Never let soil dry completely.
• Direct sun, high humidity, pH 5.0 soil.
• No repotting/fertilizing during bud set.
• Acid fertilizer (Miracid) at half-strength, monthly.

Why Yours Failed

Likely: temp >70°F, peat soil too wet, low humidity, or environment change shock.

Verdict

If you can't maintain 55–65°F with high humidity and acid soil, it won't rebloom reliably. Treat as a temporary floral display. For lasting blooms, choose African violet, streptocarpus, or kalanchoe.