When to Water Camellias and Azaleas After Winter Drought

Understanding Soil Moisture Dynamics

Water leaves soil through three paths: evaporation, gravity drainage, and plant transpiration. In winter and spring, evaporation is minimal, gravity only removes excess, and plants transpire little because growth is slow. The soil stays naturally moist.

The Summer Turning Point

Around early July, everything changes. Rising temperatures drive evaporation and transpiration up sharply. Soil begins losing roughly 7/8 inch of water per week—faster than typical rainfall replaces it.

Watering Guidelines for Established Shrubs

• Before late June: No supplemental watering needed—winter/spring rains suffice.
• Late June onward: Water only to supplement rainfall when soil dries.
• Method: Deep, infrequent soakings beat frequent light sprinkles.
• Check soil: Dig 4–6 inches down; if dry, it's time to water.

Special Cases

Newly planted evergreens (magnolias, Leyland cypress, large hollies) need consistent moisture during their first year regardless of season.