DIY

How Much Grass Seed Do You Need?

Built by Kevin Glover · @gloverbuilds · Verified formula

Calculate pounds of grass seed for new lawns, overseeding, and repair. By grass type, area, and application rate.

📅 Updated April 2026 ✅ Formula verified 📖 4 min read 🆓 Free · No sign-up

In this article

Seeding Rates by Grass Type
Timing Is Everything

Dosierung

Neuanlage: 25-30 g/m². Nachsaat: 10-15 g/m². Für 200 m² Neuanlage: 5-6 kg. RSM-Mischungen (Regel-Saatgut-Mischungen) sind der deutsche Standard: RSM 2.3 (Spielrasen), RSM 1 (Zierrasen), RSM 7.4 (Landschaftsrasen Schatten). Aussaat: April-Mai oder August-September.

Tipps

Boden vorbereiten: fräsen, einebnen, leicht walzen. In zwei Durchgängen kreuzweise säen. Dünn mit Erde/Sand abdecken. 2-3× täglich fein beregnen für 2-3 Wochen.

⚡ CalcWolf Insight

New grass seed needs to stay consistently moist for 14-21 days after sowing. The #1 cause of seeding failure is letting the surface dry out during germination. Water lightly 2-3 times daily for the first 2 weeks — do not flood, just keep the top 1/2 inch moist.

Frequently asked questions

Wie viel für 100 m²?▾

Neuanlage: 2,5-3 kg. Nachsaat: 1-1,5 kg.

Rollrasen oder Saat?▾

Rollrasen: sofortiges Ergebnis, 3-8 €/m². Saat: günstiger (0,50-2 €/m²), dauert 6-8 Wochen bis dicht.

✓ Math logic verified against primary sources → See our verification process

Kevin Glover · @gloverbuilds

Founder, CalcWolf · GLVTS · Blickr

All formulas sourced from primary references — IRS publications, peer-reviewed research, and official standards. Results are tested against independent reference calculators before publishing. Rates and brackets updated when official sources change. Editorial policy →