Diagnosing Watering Issues in Container and Landscape Plants

Multiple Symptoms, Multiple Causes

Lavatera in Wine Barrels

• Check drainage—barrels must drain freely.
• Bud drop may indicate leaf gall midge; collect dropped buds in sealed bag to check for larvae.
• Treat with pyrethroids if insects found.

Phormium (Flax) Leaf Browning

• Possibly overwatering; check for mealybugs at leaf bases.
• Ensure excellent drainage.

Lawn Dead Patches

• Fungal disease likely in hot, humid conditions with irrigation.
• Consult local UC Cooperative Extension: Stanislaus County.
• Verify turf species suits Central Valley climate.

General Watering Rule

Deep, infrequent watering promotes deep roots. Adjust for soil type, weather, and plant needs.