Preparing Soil and Watering New St. Augustine Sod

Laying St. Augustine sod? Beyond tilling, here's what the soil needs and exactly how to water for successful rooting.

Soil Prep Checklist

1. Test pH. Target 6.0–6.5. Amend per test.
2. Till 4–6″ deep. Break clods to popcorn size.
3. Incorporate compost. 2–3″ tilled in improves clay drainage and sand retention.
4. Apply starter fertilizer. 15-15-15 or 18-24-12 at 1 lb N/1000 sq ft. Rake in lightly.
5. Grade smooth. Firm with roller; fill low spots.
6. Pre-moisten. Water soil deeply day before laying—damp, not muddy.

Watering Schedule (First 14 Days)

Period	Frequency	Duration	Goal
Days 1–3	3×/day	10–15 min	Keep sod/seam moist
Days 4–7	2×/day	15–20 min	Encourage root descent
Days 8–14	1×/day	20–30 min	Deepen roots
Week 3+	Every 2–3 days	30–45 min	Establish deep roots

Adjust for weather: Skip if rain >½″. Reduce in cool/cloudy. Increase in heat/wind.

Critical Rules

• Never let sod dry out. Check edges/corners first—they dry fastest.
• No puddling. Soggy soil = root rot.
• Morning only. Evening moisture invites fungus.
• Tug test at Day 10–14. Resistance = rooted. Then mow high (3.5″).

After Establishment

• Transition to 1″/week in 1–2 deep waterings.
• Fertilize at 4–6 weeks with 16-4-8 or similar.
• Monitor for chinch bugs (yellowing patches) and brown patch (circles).

Prep right, water religiously for two weeks, and St. Augustine will reward you with a thick, weed-resistant carpet.