Watering Newly Hydroseeded Lawns: Keep It Wet Until First Mow

The Golden Rule

Keep the seed constantly moist until you've mowed once or twice. That's it.

Scheduling Nuances

The user's system: 5 AM and 5 PM, 30 minutes each. "30 minutes" is meaningless without knowing output. Measure: run 30 min, catch water in coffee cans, measure depth. Aim for 1–1.5 inches per week, split over 2–3 sessions. Adjust time to achieve that.

Duration

Continue frequent light watering until first mow (typically 3–4 weeks). Then transition to deep, infrequent watering to encourage deep roots.

Key Takeaway

Don't fixate on minutes. Fixate on moisture. If the surface dries, seeds die. Simple.