California Department of Transportation

Drill Seed

Drill Seed Photos

What is This Treatment?

Drill Seed work is the sowing of seed in the soil using a drill seeding device.

When to Use This Treatment?

Typically used in disturbed soil areas 3:1 (H:V) and flatter that are readily accessible by equipment.


  • Sowing the seed directly in the soil leads to better germination and vegetative cover than hydroseed techniques.
  • Requires only one-half the seeding rate of Dry Seed or Hydroseed


  • Not effective in applying fluffy seed (e.g., rabbit brush) due to static electricity.

Technical Information

Consider Using This Specification With:

To prevent surface erosion after drilling seed, consider following this treatment with:

To effectively treat sites with compacted, nutrient depleted, or poorly draining soils, consider combining this treatment with:


Plans and Details:

Estimate Information:

External Links:

Updated 08-21-2015