The most important liquid feed after the first grass shoots. Boosts root growth.
200 ml / 10 L
€25.00 incl. VAT€25.00/L
The first feed of the yearFormulaNPK 20-5-10 + 0,8% MgO + 4% Fe
BasicNPK 20-5-10
Spring Basic
the vital start.
The first basic feed of the year, with a high dose of nitrogen (N) to wake up the grass.
- 2–5 mm granule, 32% CRF
- Up to 3 months of gradual release
- 20% nitrogen to wake up the grass
- 0.8% MgO and 4% iron for instant top colour
- 5% phosphorus for deeper roots
- One bag covers 250–350 m²
€33.00per 10 kg bag€3.30/kg
1 bag covers 250–350 m².How much do I need?
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 Basic.
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 kg250–350 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 complete spring feed in one granule: plenty of nitrogen for the restart after winter, phosphorus for the roots and iron for colour.
Spring Basic is the first basic feed of the year in the Basic line, with a high dose of nitrogen (20%) to wake up the grass. Part of the nitrogen is coated (32% CRF) for gradual release, part is available quickly. Thanks to the polymer coating, the fertilizer releases its nutrients gradually for up to 3 months, driven mainly by temperature.
- 20%
Nitrogen (N)
7.1% ammonium, 8.7% urea and 4.2% nitrate nitrogen. Partly coated for gradual release, partly available quickly.
- 5%
Phosphorus (P₂O₅)
Of which 4.8% water-soluble. For good root build-up and deeper roots.
- 10%
Potassium (K₂O)
Of which 9.8% water-soluble. For good water management and stronger cells.
- 0,8% MgO · 4% Fe
Magnesium and iron
For instant top colour.
- 6,7% CaO · 7% SO₃
Calcium and sulphur
As on the bag’s label.
- Composition
- NPK 20-5-10 + 0,8% MgO + 4% Fe
- Granule
- 2–5 mm, 32% CRF
- Dosage
- 25–35 g/m²
- Coverage
- 250–350 m² per bag
- When
- March – April
- Pack
- 10 kg bag
Spread now, plan the rest of the year.
The Basic programme: one granular fertilizer per season and Wintermagic Elixir for the winter months.
SpringThis product
Spring Basic
- When
- March – April
- Dose
- 25–35 g/m²
First feed of the year, 3 weeks after Spring Pro (March–April). Then every 8 to 10 weeks during the growing season.
How to use itSummer
Summer Basic
- When
- May – August
- Dose
- 25–35 g/m²
Second feed of the year, early June. Every 8 to 10 weeks during the growing season.
View productAutumn
Autumn Basic
- When
- September – October
- Dose
- 25–35 g/m²
Third feed of the year, September–October. Plan your autumn feed between late August and late September.
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 Basic
When First feed of the year, 3 weeks after Spring Pro (March–April). Then every 8 to 10 weeks during the growing season.
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: the granules release their nutrients gradually, driven by temperature. 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 Basic is spread dry, without mixing.
Base dosage
Spring Basic (this product)25–35 g/m²
10 kg bag250–350 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 Basic.
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Answers before the first spread.
Allow 25 to 35 grams per m². One 10 kg bag covers 250 to 350 m². The calculator on this page works it out for you.
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.
Summer Basic follows in early June, Autumn Basic in September–October. That way you feed your lawn three times a year.
Manufacturer and product information
- Manufacturer
- Alammax BV (Fertilize-it)
Westkapellestraat 370a, 8300 Knokke-Heist, Belgium
info@fertilize-it.be - Product
- Spring Basic · 10 kg bag · BAS-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 Basic.
Season: Spring
Spring Pro
Pro line · Granular
NPK 10-5-510 kg
The first Pro feed of the year. A cold start: gets going from 6 °C. For closely mown lawns.
€43.00 incl. VAT€4.30/kg
Season: Summer
Summer Basic
Basic line · Granular
NPK 16-5-1610 kg
The second basic feed of the year, with another healthy dose of nitrogen (N) and potassium (K) to make the grass stronger.
€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
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