Seeding New Grass

⏰ Best Time of Year to Plant Rye & Fescue

Cool-season grasses like perennial ryegrass and fine fescue thrive when daytime highs sit between 60-75 °F and soil temps are above 50 °F. In Western Washington that sweet-spot usually lands in early spring (March–May) and late summer/early fall (Late August–October).

• Spring seeding takes advantage of warming soils and reliable rain—but be wary of late frosts.
• Fall seeding enjoys warm soils, mild days, and fewer weed seeds competing for space.
• Summer seeding is possible but demands diligent irrigation to fight heat stress.
• Winter seeding (dormant seeding) can work, yet germination waits until soil warms and success is less predictable.

Need more climate data? Check out our in-depth Best Time to HydroSeed guide.

🌾 Dry Seeding vs. 🌊 HydroSeeding

Dry seeding still shines for small patch repairs or when you already own a broadcast spreader. For areas over 2,000 ft², HydroSeeding is usually faster, more uniform, and achieves better germination rates—especially on slopes.

✅ Keys to Successful Grass Germination

• Proper Seeding Rate: Apply 6-8 lbs of our PNW rye/fescue blend per 1,000 ft² for new lawns.
• Consistent Moisture: Keep the top ½" of soil damp—irrigate 3–4× daily (short cycles) until the first mow.
• Light Top Pressure: After spreading, gently roll or rake the seed so it nestles ⅛" deep and contact is firm.
• Mulch / Cover: Use hydro-mulch, straw, or compost to regulate temperature and deter birds.
• Protect From Birds & Wind: Netting or a light tackifier keeps seed where it belongs until sprouts anchor.