The most important liquid feed after the first grass shoots. Boosts root growth.
200 ml / 10 L
€25.00 incl. VAT€25.00/L
From 6 °C soil temperatureFormulaNPK 10-5-5 + 2,3% MgO + 5% Fe
ProNPK 10-5-5
Spring Pro
the fast kickstart.
The first Pro feed of the year. A cold start: gets going from 6 °C. For closely mown lawns.
- Extra-fine 1–2 mm granule
- Fast-acting ammonium nitrogen
- Works from 6 °C soil temperature
- 10 kg covers up to 400 m²
- 5% iron for a fast, deep green colour
- Spring Basic follows 3 weeks later
€43.00per 10 kg bag€4.30/kg
Price incl. VAT, excluding shipping costs.
- DeliveryShipped within 1 to 2 working days after payment, delivery takes up to 7 days
- Free shippingBelgium from €85, NL, LU and FR from €125
- 14 days to change your mindLegal right of withdrawal
- Secure paymentBancontact, KBC/CBC, Belfius, credit card, Apple Pay, iDEAL | Wero
- Belgian companyAlammax BV · Knokke-Heist
Combine with these elixirs
Elixirs that go well with Spring Pro.
Promotes root growth and general plant health. A basic must for liquid feeding.
200 ml / 10 L
€23.00 incl. VAT€23.00/L
Boosts shady areas, so the plants make more of the little light they get. The grass makes a lot more chlorophyll.
200 ml / 10 L
Spread 25–35 g/m² in one even layer.
25–35grams per m², spread evenly, ideally with a spreader.
10 kgup to 400 m² per bag
How much do I need?
Product needed2.5–3.5 kg
Bags of 10 kg1 bag
Dosage25–35 g/m²
2.5–3.5 kg: 1 bag at the low dose, 1 bag at the high dose.
Guide values from the label. Never exceed the dose.
Why exactly this composition.
A fast start after winter: nitrogen that works straight away, magnesium for the green-up and iron for colour.
Spring Pro is the first Pro feed of the year, for closely mown lawns. The nitrogen is mainly in the form of ammonium (7.7% of the 10%): fast-acting, for an ideal kick-start of the grass shoots. A cold start: the roots become active from 6 °C soil temperature. The extra-fine 1–2 mm granule is made for short-mown grass. Three weeks later, the basic spring feed with Spring Basic follows.
- 10%
Nitrogen (N)
7.7% ammonium and 2.3% urea nitrogen: fast-acting, the ideal kick-start.
- 5%
Phosphorus (P₂O₅)
Water-soluble. For the roots.
- 5%
Potassium (K₂O)
Water-soluble. For stronger cells.
- 2,3%
Magnesium (MgO)
For the green-up.
- 5%
Iron (Fe)
For a fast, deep green colour.
- 0,2% CaO · 13,2% SO₃
Calcium and sulphur
As on the bag’s label.
- Composition
- NPK 10-5-5 + 2,3% MgO + 5% Fe
- Granule
- 1–2 mm, extra fine
- Dosage
- 25–35 g/m²
- Coverage
- up to 400 m² per bag
- When
- March – April
- Pack
- 10 kg bag
Spread now, plan the rest of the year.
The Pro programme: one granular fertilizer per season and Wintermagic Elixir for the winter months.
SpringThis product
Spring Pro
- When
- March – April
- Dose
- 25–35 g/m²
March–April, from 6 °C soil temperature. Spring Basic follows 3 weeks later.
How to use itSummer
Summer Pro
- When
- May – August
- Dose
- 25–35 g/m²
April to August, every 4 to 5 weeks during the growing season.
View productAutumn
Autumn Pro
- When
- September – October
- Dose
- 25–35 g/m²
From the end of August, every 4 weeks until December.
View productWinter
Wintermagic Elixir
- When
- November – February
- Dose
- 200 ml / 10 L
November to February, every 2 to 3 weeks. Not on wet grass and not during frost.
View productHow to use Spring Pro
When March–April, from 6 °C soil temperature. Spring Basic follows 3 weeks later.
Combine Granular fertilizers are spread dry. The liquid elixirs from the same season of the lawn calendar can be used alongside.
Instructions for use
Work out how much
Use 25 to 35 grams per m². The calculator above works out how many bags you need.
Spread evenly
Spread in one even layer, ideally with a spreader. That way no patches grow faster or slower than the rest.
Clear hard surfaces
Blow or brush granules on paths, patios or wood back onto the grass straight away: the iron can stain.
Watering
No heavy watering-in needed. In dry spells, water every 3 days for at least 1.5 hours.
Please note
Never exceed the dose: too much feed makes the grass grow too fast or stop growing.
Please note
The granules contain iron: blow or brush granules on stone, patios or wood straight back onto the grass. Do not rinse them off with water, as iron can leave rust stains.
Please note
This fertilizer contains urea, which can release ammonia. Only use it when there is a recognised need.
Storage
Store dry, between 0 and 35 °C, out of the sun and frost-free. Reseal opened bags. Take the empty bag to your recycling centre.
Precise dosages and tank-mix.
Spring Pro is spread dry, without mixing.
Base dosage
Spring Pro (this product)25–35 g/m²
10 kg bagup to 400 m² per bag
Granular fertilizersSpread dry, no mixing
Tank-mix rules
- Granular fertilizers are spread dry. The liquid elixirs from the same season of the lawn calendar can be used alongside.
- Exception: Colour Elixir is always used on its own.
What early customers say.
Reviews from customers who bought Spring Pro.
Be the first to review Spring Pro.
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Answers before the first spread.
Allow 25 to 35 grams per m². One 10 kg bag covers up to 400 m². The calculator on this page works it out for you.
In March–April, as soon as the soil reaches 6 °C. Spring Basic follows three weeks later.
No heavy watering-in is needed. In dry spells, water the lawn every 3 days for at least 1.5 hours.
Blow or brush them straight back onto the grass and do not rinse them off: the iron in the granules can leave rust stains.
Manufacturer and product information
- Manufacturer
- Alammax BV (Fertilize-it)
Westkapellestraat 370a, 8300 Knokke-Heist, Belgium
info@fertilize-it.be - Product
- Spring Pro · 10 kg bag · PRO-SPR-10KG
- Batch number
- On the pack.
Legal guarantee
You have the legal guarantee of conformity: 2 years from delivery in Belgium, France and Luxembourg, and under Dutch law in the Netherlands.
Not sure what your lawn needs?
Have your soil analysed or answer a few short questions. Both end with a plan for your lawn.
AI-generated illustration€129
Start with a soil analysis
A soil analysis shows what your lawn is missing. With the results we draw up a plan: which products, how much and when.
More about the soil analysisUp to 8 questions
Take the lawn quiz
Answer up to 8 short questions and get a plan with the right products and amounts for your lawn area.
- Season
- Goals
- Lawn issues
- Lawn size
Often bought together.
Products that go well with Spring Pro.
Season: Spring
Spring Basic
Basic line · Granular
NPK 20-5-1010 kg
The first basic feed of the year, with a high dose of nitrogen (N) to wake up the grass.
€33.00 incl. VAT€3.30/kg
Season: Mar – Oct
Rootgrow Elixir
Elixir line · Liquid
NPK 8-6,5-1,51 L
The most important liquid feed after the first grass shoots. Boosts root growth.
€25.00 incl. VAT€25.00/L
Holy GrailSeason: Mar – Oct
Essential Elixir
Elixir line · Liquid
1 L
Promotes root growth and general plant health. A basic must for liquid feeding.
€23.00 incl. VAT€23.00/L
Soil analysis
A lab test of your soil, with a plan: which products, how much and when.
- Measures
- 20 parameters
- Results
- 14 working days
- Lab
- Fertilab
€129.00/ analysis incl. VAT