Overseeding with Contractor's Seed: Timing and Technique

Contractor's Seed Is Low Quality—But Overseeding Still Helps

Contractor mixes have more weed seeds, lower germination, and older varieties. But overseeding any seed into 50%+ good turf boosts density and appearance.

Store Seed Properly

Keep in unheated garage (cool, dry, rodent-proof). Viability drops minimally over winter.

Spring Overseeding Steps (March–May)

1. Mow low to expose soil.
2. Remove thatch if needed (core aerate or dethatch).
3. Set spreader to OVERSEEDING rate on bag.
4. Apply organic starter fertilizer (high phosphorus).
5. Water lightly daily until germination.

Premium seed from Seedland or Lawnseed.com gives better long-term results, but contractor's seed is a budget start.