Hot Weather Lawn Watering and Weed Control Near Rhododendrons

Reading Grass Moisture Signals

Grass blades indicate water status:

• Open, flat: Adequate moisture
• Folded/rolled: Moisture stress (normal midday, should recover evening)

Watering Depth and Frequency

• Wet top 6 inches of soil OR until runoff begins—whichever comes first
• If runoff before 6-inch depth: water more frequently with shorter cycles
• Best time: Early morning (low wind, blades dry before night)
• Worst time: Evening (prolonged wetness promotes fungal disease)

Weed Control Near Sensitive Plants

Grassy Weeds

Fluazifop (e.g., Fusilade) kills emerged grasses without harming listed broadleaf plants like rhododendrons.

Broadleaf Weeds

Glyphosate (Roundup) with extreme caution:

• Add spray dye for visibility
• Immediately prune any accidental contact on desirable plants
• Use paint roller "wipe" application for precision in tight spaces
• Keep pruners handy for instant response

Morning watering and targeted weed control protect both lawn and landscape investments.