Spring Starter Plus Fertiliser - iGrow Carpet

Spring Starter Plus Fertiliser

4.75 (4 reviews)
|
In Stock
£24.99
Wake your lawn up from winter with a slow-release feed that delivers thick, dark green growth for up to 10 weeks.

Why It Works

  • ✓One application feeds your lawn for up to 10 weeks
  • ✓Get a thick, dark green lawn this Spring
  • ✓Iron free — no orange stains on your patio or driveway
  • ✓Safe for kids and pets when used as directed
Coverage Area:
Quantity:
Fast 5 Day Delivery
Flat £7 Shipping Fee
Secure Checkout

Not sure how much you need?

Measure your lawn in 30 seconds.

Use our free satellite tool to work out your exact size — then get product recommendations for every season.

Measure now

Product Overview

iGrow Carpet Spring Starter Plus 20-4-10 + 2% MgO + 4% CaO

A slow-release spring fertiliser that wakes your lawn up properly. Get a thick, dark green growth that lasts up to 10 weeks. Iron free, so no orange staining on paths or drives. Safe for kids and pets when used as directed.

>

The science bit

Nitrogen (20% N)
Drives green, leafy growth as the days lengthen and soil temperatures rise.

Phosphorus (4% P)
Kickstarts root development, pushing roots deeper into the soil where they're more resilient.

Potassium (10% K)
Improves resistance to disease, drought and temperature swings.

Magnesium (2% MgO)
Fuels chlorophyll production, giving you a deeper, richer shade of green without the staining you get from cheaper iron-based products.

Calcium (4% CaO)
Helps other nutrients work more efficiently and prevents them from getting locked up in the soil.

Technical Specifications

Total Weight
2.5kg
Coverage
70-100m²
Application Time
March, April and May
Reapplication
10-12 weeks

How To Apply Our Fertiliser

  1. Measure your lawn using our lawn measurement tool
  2. Set your spreader as per its instructions
  3. Use a spreader for even coverage — do not apply by hand
  4. Do not apply in frost
  5. Keep children and pets off the lawn during and after application until watered in and dry
  6. Apply at 30 grams per m² for best results (the product can be applied at between 25-35g per m²)
  7. Blow or brush any product off hard surfaces afterwards
  8. Water in thoroughly for 15 to 20 minutes, or leave if at least 20 minutes of steady rain is forecast within 24-48 hours. The sooner it's watered in, the faster it gets to work

Want to get the best results? Our free Beginners Guide to Fertilising Your Lawn covers everything from spreader settings to professional application techniques.

Q: When should I apply it?

March to May when the grass is actively growing. If you're still getting frosts, wait until they pass.

Q: How much do I need?

Our fertiliser can be applied at 25 to 35 grams per m². We recommend 30 grams per m² as the ideal rate as it gives great results while allowing for a little overlap around edges. Use our lawn measurement tool on the website to calculate exactly how many bags you need based on your lawn size.

Q: How quickly will I see results?

4 to 7 days after it's been watered in.

Q: What's the best way to water it in?

We recommend using a sprinkler as depending on your water pressure, a 15 to 20 minute soak is enough to get the product working. If rainfall is forecast within the next 48 hours that will also do the job, as long as it's not just a light shower.

Q: Will it stain my patio or driveway?

It shouldn't as our granular products are iron free. That said, it's always best to brush or blow any product off hard surfaces before watering in, just to be safe.

Q: How long does it last?

10 weeks in normal conditions. If there's been little rain and slow growth it can stretch to 12 weeks.

Q: Do I need a spreader?

Yes as a spreader gives you even coverage and prevents patchy results. Hand spreading isn't recommended.

Q: What spreader setting should I use?

This varies by spreader model and walking speed. We have a quick start guide on the learning hub.

Q: Can I apply it in the rain?

Light rain after applying is fine and will help water it in. Avoid applying just before very heavy rain as it can wash the product off the lawn before it has a chance to work.

Q: What if I accidentally over-apply?

Water the area thoroughly straight away to dilute the product and reduce the risk of any scorch.

Q: Can I apply it to a newly seeded lawn?

Yes, but also check out our Pre-Seeder which is specifically designed to give new seed the best possible start.

Q: Is it safe for kids and pets?

Yes, once watered in and dry. Grazing pets like rabbits and guinea pigs should be kept off for two weeks or three cuts, whichever comes first.