Spring Overseeding in Ohio: Timing, Order, and Moss Patches

It's Not Too Late—It's Early

In Ohio, spring overseeding is ideal from late March through April. Soil temps are rising, weeds haven't exploded yet, and rain helps.

Recommended Sequence

1. Aerate – Core aerate to relieve compaction and create seed beds.
2. Seed – Use a quality blend (e.g., tall fescue + Kentucky bluegrass).
3. Rake lightly – Mix seed into soil and aeration holes.
4. Fertilize – Starter fertilizer (high phosphorus) at seeding rate.
5. Water daily – Keep surface constantly moist until germination (10–21 days).
6. Continue watering – Taper to deep, infrequent watering once established.

Fixing Mossy Bare Spots

Moss indicates shade, moisture, or low pH. In those patches:

• Rake out moss.
• Apply lime (50 lbs/1,000 sq ft).
• Seed with shade-tolerant mix (fine fescues).
• Water diligently.

Seed must stay wet to grow—no shortcuts.