Lawn Seed Calculator
Lawn Seed Calculator
Project Type
Lawn Area
Seed Requirements
Recommended seed amount: 0 kg
Coverage rate: 0 g/m²
Choosing and Applying Grass Seed
Master your lawn establishment with our comprehensive seeding guide. Whether creating a new lawn or overseeding an existing one, proper seed selection and application are crucial for success.Grass Types and Seeding Rates
| Grass Type | New Lawn (g/m²) | Overseed (g/m²) | Germination |
|---|---|---|---|
| Perennial Ryegrass | 35 | 25 | 5-10 days |
| Fine Fescue Mix | 40 | 25 | 10-14 days |
| Bentgrass | 15 | 10 | 7-14 days |
| Kentucky Bluegrass | 30 | 15 | 14-21 days |
| Shade Mix | 45 | 30 | 7-14 days |
SEASONAL TIMING
Optimal seeding periods:- Spring: March-April (soil temp above 10°C)
- Late Summer: August-September (ideal)
- Autumn: September-October (while warm)
- Avoid: December-February, July-August
Site Preparation
| Condition | Required Steps | Time Needed |
|---|---|---|
| Poor Soil | Deep cultivation, organic matter addition | 2-3 weeks |
| Average Soil | Surface cultivation, basic amendment | 1-2 weeks |
| Good Soil | Light raking, levelling | 2-3 days |
Additional Materials Needed
| Material | New Lawn Rate | Overseed Rate |
|---|---|---|
| Starter Fertilizer | 30g/m² | 20g/m² |
| Topsoil | 10L/m² | Not needed |
| Organic Matter | 5L/m² | Optional |
SOIL PREPARATION CHECKLIST
- Remove weeds and debris completely
- Test soil pH (aim for 6.0-7.0)
- Cultivate to 15cm depth minimum
- Level and firm the surface
- Rake to create a fine tilth
After-Seeding Care
| Week | Watering | Care Needed |
|---|---|---|
| Week 1-2 | Light, twice daily | Keep surface moist |
| Week 3-4 | Daily, deeper | Encourage root growth |
| Week 5-6 | Every other day | Prepare for first mow |
TROUBLESHOOTING
Common issues and solutions:- Patchy growth: Check soil contact and water
- Bird damage: Use netting or seed covers
- Slow germination: Check soil temperature
- Washing away: Reduce slope or use netting
First Mowing Guidelines
- Wait until grass reaches 7-8cm height
- Ensure soil is firm enough to support mower
- Use sharp blades to prevent pulling
- Never remove more than 1/3 of height
- Collect clippings from new lawns
Long-term Maintenance
| Task | Timing | Frequency |
|---|---|---|
| Regular Mowing | Growing season | Weekly |
| Fertilizing | Spring/Summer | Every 6-8 weeks |
| Overseeding | Spring/Autumn | Annually |
| Scarifying | Spring/Autumn | Annually |
SUCCESS INDICATORS
Look for these signs of establishment:- Even, consistent colour across lawn
- No visible soil between grass plants
- Grass springs back after walking
- Roots well developed when tugged