Introduction
As the cooler months give way to warmer weather, spring brings new life to Kiwi gardens and lawns. But before you can enjoy that lush green carpet, your lawn needs some TLC to recover from winter and prepare for the growing season ahead.
Spring lawn preparation isn’t just about aesthetics — it’s about setting your yard up for success. From soil testing and overseeding to equipment maintenance, getting your lawn ready now means less work and better results throughout the season.
This guide covers everything you need to know about spring lawn preparation, with practical tips tailored for New Zealand conditions.
Why Spring Preparation Matters
Winter can be tough on lawns. Frost, heavy rain, and reduced sunlight take their toll, leaving grass thin, patchy, and vulnerable to weeds. Spring preparation addresses these issues before they become problems.
Benefits of Proper Preparation
- Thicker, healthier grass that resists weeds and disease
- Better drought tolerance for our variable spring weather
- Reduced maintenance throughout the growing season
- Cost savings by preventing major lawn repairs
Step 1: Clean Up Winter Debris
Start with a thorough clean-up to remove the winter's accumulation.
Tasks to Complete
- Remove leaves and twigs: Use a rake or leaf blower to clear fallen debris
- Clean gutters and drains: Prevent waterlogging that damages grass roots
- Remove weeds: Hand-weed or spot-treat problem areas
- Clear garden beds: Remove dead plants and prepare borders
A clean slate gives your lawn the best chance to thrive.
Step 2: Soil Testing and Amendment
Healthy grass starts with healthy soil. Spring is the perfect time to test and improve your soil.
Essential Tests
- pH levels: Kiwi soils often need lime to raise pH
- Nutrient content: Test for nitrogen, phosphorus, and potassium
- Organic matter: Check soil structure and drainage
Soil Improvement Tips
- Add composted manure for nutrients and better drainage
- Apply lime if pH is too low (common in New Zealand)
- Consider gypsum for clay soils that drain poorly
- Top-dress with fine compost for better root growth
Step 3: Overseeding and Reseeding
Fill in bare patches and thicken thin areas with new grass seed.
When to Overseed
- Early spring (September-October) when soil temperatures reach 10-15°C
- After soil testing and amendment
- When you can water regularly for 2-3 weeks
Overseeding Tips for Kiwi Lawns
- Choose drought-tolerant varieties suitable for New Zealand conditions
- Use a seed spreader for even coverage
- Water lightly but frequently to keep soil moist
- Avoid walking on newly seeded areas
- Consider fescue or ryegrass blends for our climate
Step 4: Aeration and Dethatching
Improve soil structure and root growth with these essential steps.
Aeration Benefits
- Allows air, water, and nutrients to reach grass roots
- Reduces soil compaction from winter traffic
- Improves drainage and reduces thatch buildup
How to Aerate
- Use a core aerator (rent one if you don't own)
- Aerate when grass is actively growing
- Water well before aerating to soften soil
- Leave plugs on surface to break down naturally
Step 5: Fertilising for Growth
Give your lawn the nutrients it needs to bounce back strong.
Spring Fertiliser Tips
- Apply a balanced fertiliser (e.g., 10-5-5 NPK ratio)
- Choose slow-release formulas to avoid burn
- Test soil first to avoid over-fertilising
- Apply in early spring when grass starts growing actively
Timing Matters
- Early spring: Focus on root development
- Late spring: Switch to growth-promoting fertilisers
- Avoid fertilising during drought periods
Step 6: Equipment Preparation
Make sure your lawn care tools are ready for the busy season.
Lawn Mower Maintenance
- Sharpen blades for clean cuts that prevent disease
- Check oil levels and change if needed
- Clean under the deck to remove grass buildup
- Inspect belts and cables for wear
- Test safety features before first use
Other Equipment
- Service petrol tools at a STIHL-certified workshop
- Charge battery equipment and check battery health
- Clean and store winter gear properly
- Book professional servicing for heavy-use tools
Step 7: Weed and Pest Control
Address weed and pest issues before they spread.
Integrated Pest Management
- Identify common weeds: Look for clover, dandelions, and oxalis
- Spot-treat rather than broadcast spraying
- Encourage beneficial insects for natural pest control
- Monitor for lawn grubs in autumn for spring treatment
Safe Application Tips
- Always read product labels and follow instructions
- Apply when weather is calm to avoid drift
- Keep children and pets off treated areas
- Consider organic alternatives for eco-friendly yards
Seasonal Timeline for Kiwi Homeowners
Early Spring (September)
- Clean up winter debris
- Soil testing and amendment
- Equipment servicing
Mid Spring (October)
- Overseeding and reseeding
- Aeration and dethatching
- First fertiliser application
Late Spring (November)
- Weed control
- Second fertiliser application
- Regular mowing begins
Common Spring Lawn Problems
Thin or Patchy Grass
- Overseed bare areas
- Improve soil fertility
- Reduce shade if possible
Moss Growth
- Improve drainage
- Raise soil pH with lime
- Increase sunlight exposure
Weed Invasion
- Maintain healthy, thick grass
- Regular mowing at correct height
- Spot-treat rather than broadcast
Practical Tips for Success
- Start small: Focus on one area at a time if your yard is large
- Water wisely: Deep, infrequent watering encourages deep roots
- Mow high: Leave grass slightly longer in spring to shade soil
- Be patient: Results take time — don't expect instant perfection
- Keep records: Note what works and what doesn't for next year
Spring lawn preparation is an investment in your property's appearance and value. By addressing soil health, overseeding bare patches, and preparing your equipment, you'll enjoy a lush, healthy lawn that enhances your outdoor living spaces.
Take it one step at a time, and you'll be rewarded with a beautiful lawn that lasts throughout the growing season. If you're unsure about any aspect of lawn care, our STIHL-certified technicians are here to help with expert advice and professional servicing.