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10 kg bag of Summer Pro on a lawnBestseller · With mycorrhiza and polyhalite
FormulaNPK 18-5-5 + 2% MgO

ProNPK 18-5-5

Summer Pro
balance through summer.

The ultimate feed for lawn enthusiasts, from April to August. For closely mown lawns.

  • 1–2 mm granule, 50% CRF
  • 9% ammonium + 9.2% urea
  • With mycorrhiza for root growth
  • With polyhalite for a deeper colour
  • One bag covers 350 m²
  • April to August, for closely mown lawns

€43.00per 10 kg bag€4.30/kg

1 bag covers 350 m².How much do I need?

Price incl. VAT, excluding shipping costs.

Hazard information

Summer Pro · under the CLP Regulation (EC) 1272/2008

Signal word: Warning

Contains isocyanates. May produce an allergic reaction.

  • Hazard statement

    H319 Causes serious eye irritation.

  • Hazard statement

    H412 Harmful to aquatic life with long lasting effects.

  • Hazard statement

    EUH204 Contains isocyanates. May produce an allergic reaction.

  • Precautionary statement

    P101 If medical advice is needed, have product container or label at hand.

  • Precautionary statement

    P102 Keep out of reach of children.

  • Precautionary statement

    P264 Wash thoroughly after handling.

  • Precautionary statement

    P280 Wear protective gloves, protective clothing and eye protection.

  • Precautionary statement

    P305+P351+P338 IF IN EYES: rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

  • Precautionary statement

    P501 Dispose of the packaging at your municipal recycling centre.

Supplier
Alammax BV Westkapellestraat 370a, 8300 Knokke-Heist +32 477 52 40 98 info@fertilize-it.be
Quantity
10 kg bag

Always follow the information on the product label.

These statements are also printed on the label. All labels are on every bag and bottle.

  • 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 Summer Pro.

Recommended partners

Silicium Elixir

Makes the plant more drought-resistant and stronger. Biostimulant with ortho-silicic acid.

100 ml / 10 L

€25.00 incl. VAT€25.00/L

Shield Elixir

Protects your plants against multiple forms of stress.

200 ml / 10 L

€25.00 incl. VAT€25.00/L

Essential Elixir

Promotes root growth and general plant health. A basic must for liquid feeding.

200 ml / 10 L

€23.00 incl. VAT€23.00/L

Spread 25–35 g/m² in one even layer.

25–35grams per m², spread evenly, ideally with a spreader.
10 kg350 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 and a slow nitrogen source in one granule, plus mycorrhiza for root growth and polyhalite for a deeper colour.

Summer Pro is the ultimate feed for lawn enthusiasts, from April to August, for closely mown lawns. Its nitrogen consists of 9% ammonium and 9.2% urea; half of the fertilizer is coated (50% CRF) for gradual release. With mycorrhiza for root growth and polyhalite for a deeper colour.

  • Nitrogen (N)

    9% ammonium and 9.2% urea nitrogen; 50% of the fertilizer is coated (slow release).

    18%

  • Phosphorus and potassium

    For roots and stronger cells.

    5% P₂O₅ · 5% K₂O

  • Magnesium (MgO)

    For the green-up.

    2%

  • Calcium and sulphur

    As on the bag’s label.

    6,3% CaO · 35,6% SO₃

  • Polyhalite

    For a deeper colour.

  • Mycorrhiza

    For root growth.

Composition
NPK 18-5-5 + 2% MgO
Granule
1–2 mm, 50% CRF
Dosage
25–35 g/m²
Coverage
350 m² per bag
When
May – August
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.

Lawn calendar
Spring

Spring Pro

When
March – April
Dose
25–35 g/m²

March–April, from 6 °C soil temperature. Spring Basic follows 3 weeks later.

View product
SummerThis product

Summer Pro

When
May – August
Dose
25–35 g/m²

April to August, every 4 to 5 weeks during the growing season.

How to use it
Autumn

Autumn Pro

When
September – October
Dose
25–35 g/m²

From the end of August, every 4 weeks until December.

View product
Winter

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 product

How to use Summer Pro

When April to August, every 4 to 5 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

  1. Work out how much

    Use 25 to 35 grams per m². The calculator above works out how many bags you need.

  2. Spread evenly

    Spread in one even layer, ideally with a spreader. That way no patches grow faster or slower than the rest.

  3. 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

    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.

Label on requestSafety data sheet on request

Precise dosages and tank-mix.

Summer Pro is spread dry, without mixing.

Base dosage

Summer Pro (this product)25–35 g/m²
10 kg bag350 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 Summer Pro.

Be the first to review Summer Pro.

Only customers who bought Summer Pro from us can write a review. We read every review before it is published.

Answers before the first spread.

Allow 25 to 35 grams per m². One 10 kg bag covers 350 m². The calculator on this page works it out for you.

Manufacturer and product information

Manufacturer
Alammax BV (Fertilize-it)
Westkapellestraat 370a, 8300 Knokke-Heist, Belgium
info@fertilize-it.be
Product
Summer Pro · 10 kg bag · PRO-SUM-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.

Legal guarantee: minimum two-year legal guarantee protection for goods sold in the European Union. Official EU notice.
View the notice in full size

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 analysis
Up 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
Start the quiz