Why Herbs Failed in a Phoenix Patio Pot: Overcrowding and Overwatering

A gardener planted sage, oregano, thyme, and mint together in a 12-inch pot in May. By August, thyme and oregano died, sage was failing. They fertilized once with Miracle-Gro, watered daily (plants wilted by noon), pot faces southeast.

Diagnosis

• Too many plants for one pot. Each perennial herb can fill a 12-inch pot alone.
• Likely overwatered or soil not tamped. Both deprive roots of oxygen. These herbs thrive in hot, dry conditions.
• Mint is invasive. If the pot sits on soil, mint roots will escape and colonize the ground.

Restart Plan

Give each herb its own large container. Water only when soil is dry an inch down. Use lean, well-draining soil. Skip synthetic fertilizer; use fish/seaweed if needed.