Fertilizing Indoor Hibiscus: Timing and Type

When to Fertilize

Only fertilize healthy, actively growing hibiscus that haven't been repotted in over a year. In fall and winter, growth slows—do not fertilize. Wait until late spring.

What to Use

• Complete fertilizer with micronutrients (e.g., 15-30-15).
• Apply at half the recommended strength.
• Liquid or water-soluble forms are best for even distribution.

Key Insight

Fertilizer benefits are often overrated. Light, water, and proper potting matter far more. Over-fertilizing causes salt buildup and root burn.