Cilantro Repotting, Spacing, and Bolting Prevention in Hot Climates

Repotting and Spacing

• Container: Minimum 12-inch depth; 2-foot diameter per plant.
• Root handling: Gently loosen root ball before transplanting.
• Soil: Rich, well-draining compost blend.

Light and Temperature Management

• Ideal exposure: Morning sun only; filtered/afternoon shade essential.
• Heat trigger: Temperatures above 85°F (29°C) cause bolting (premature flowering).
• Your climate: 87-99°F highs require aggressive shade and cooling strategies.

Bolting Prevention Protocol

1. Succession sow seeds every 3 weeks in filtered light.
2. Water sparingly; allow slight drying between waterings.
3. Fertilize with liquid fish/seaweed (1 tbsp/gallon) every 3 weeks.
4. Harvest outer leaves frequently to delay flowering.

Product Recommendation

Liquid fish fertilizer (~$8 at Home Depot) benefits all herbs. Mix 1 tablespoon per gallon water with 1 tsp liquid castile soap as surfactant.