Plagron Alga Grow bottles in multiple sizes on a white background

Plagron Alga Grow 250 ml bottle on a white background

Plagron Alga Grow 500 ml bottle on a white background

Plagron Alga Grow

Organic plant food
Use as the main feed
Check hydro use

Plagron Alga Grow is an organic liquid grow feed for soil-grown plants, especially customers who want focused organic feeding with a compact organic plan. It supports steady leaf development during active growth and pairs naturally with Plagron’s soil-focused additives for repotting or recovery.

Quick facts

Type: Organic base fertilizer
Substrates: Soil / potting mix
Dosage: 4 ml/L
Frequency: Every watering as needed
Skill level: Beginner to intermediate
pH/EC: Recommended

€7,75

VAT included · plus

Please note: Most fertilizers ship separately from plants. A separate shipping fee may apply, and the final cost is calculated at checkout by order weight. Free shipping does not apply.

Size:

250 ml 500 ml 1 L 5 L

Variant

4.6/5 store rating · 20,000+ customers served

Tracked shipping

Plagron Alga Grow is Plagron’s organic soil-growth feed. It is the softer organic route for active plants in potting mix rather than hydro or drip systems.

Organic-minded soil growers

It fits foliage plants in potting mix that are growing steadily and receiving enough light. The product belongs in a soil-led care style, not in coco or hydro programmes.

Choosing within Plagron

Pick Alga Grow for organic soil care, Terra Grow for mineral soil feeding, Cocos A+B for buffered coco and Hydro A+B for inert hydro systems.

Is it right for your plant?

Substrate Soil / potting mix
Best for Organic plant careFoliage plants
Helps with Active growthRegular feeding
Choose another product for Hydro systemsDrip irrigation lines

Plagron Alga Grow suits soil-grown plants in an organic Plagron feeding plan. It is useful for foliage houseplants where natural inputs are preferred over mineral feeding.

For coco or hydro base feeding, choose a dedicated coco or hydro nutrient.

What's inside:

NPK Ratio: NPK 4-2-4
Nutrient basis: Organic

Plagron Alga Grow is an organic growth feed for soil-grown plants. It is the organic counterpart to a mineral soil-growth fertilizer.

The formula is NPK 4-2-4. Use it as the base feed in an organic soil setup and avoid treating it like a hydro or drip-line product.

How to use it

Use Plagron Alga Grow up to 4 ml/L during active growth, watering into the substrate. Begin with a mild dose for houseplants and increase only when growth and light levels are strong.

Keep it out of standing reservoirs; organic feeds are better used fresh in soil.

➜ A few notes before measuring, mixing or applying :

Mix only the amount needed for that watering and discard leftovers. Keep other organic growth feeds out of the same watering unless the total dose is reduced.

Keep soil airy; heavy wet mixes make organic feeding less predictable.

Plagron Alga Grow

€7,75

Frequently Asked Questions about Plagron Alga Grow

What plants is Plagron Alga Grow suitable for?

It suits soil-grown houseplants in an organic Plagron feeding routine. It is relevant for foliage plants where organic inputs are preferred over mineral feeding.

Can I use Plagron Alga Grow in hydro or standing reservoirs?

No. It is better used fresh in soil. Organic feeds are not ideal for standing reservoirs unless the whole system is designed for them.

Is Plagron Alga Grow a root stimulator?

No. It is an organic base fertilizer with NPK 4-2-4. Root support and enzyme products have different roles.

Close-up of hands measuring liquid houseplant fertilizer - Liquid fertilizer lets you control dosage and timing — ideal for semi-hydro setups and fast growers.

Fertilizing

Which Fertilizer Works Best for Your Houseplants?

Fertilizing

Beginner’s Guide to Fertilizing Houseplants

various components of potting soil, substrates: peat moss, pine bark, perlite, akadama, sand, pumice

Plant Care

The Ultimate Guide to Houseplant Substrates: Creating the Perfect Home for Your Plants

Experience you can count on

More than 20,000 customers, rated 4.6 out of 5 stars.

Quality first

Plants are hand-selected and checked before shipping.

Reliable shipping

Safe packaging and tracked shipping from DE and NL.

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Support a small, independent, women-led family business.

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rate us with 4.6 out of 5 Stars

★★★★★

Die Pflanzen waren prima verpackt und ein heatpack war im Paket enthalten. Die Lieferzeit hat 2 bis 3 Tagen gedauert, was aus meiner Sicht wirklich gut ist. Alle drei Pflanzen haben die Lieferung gut überstanden. Ich habe mich auf Hoyas spezialisiert und habe schon die nächsten Pflanzen meiner Wunschliste auf der Website gefunden. Daher wird die nächste Bestellung nicht lange auf sich warten lassen.

Marion

★★★★★

The plants are carefully packaged and arrive in great conditions (I’m based in Spain) and they’re always there to help in any way they can with your purchase.I have and will always recommend Foliage Factory to every friend I can. I’m not only satisfied with their plants and prices, but their customer service is exceptional.

José

★★★★☆

Very healthy and well packed plant. Unfortunately there was one plant that ordered couldn’t be delivered as it was out of stock hence 1 star less.

Sam

★★★★☆

Die Sendung kam leider in keinem guten Zustand bei mir an, kann passieren. Habe mich darauf hin sofort an Foliage Factory gewandt und habe selten einen so guten, schnellen, freundlichen und kulanten Kundendienst erlebt.

Frauke

★★★★★

Everything arrived in good condition and very well packed - it wasn't easy with a fragile plant and a heavy bag of substrate. I recommend it!

Lia

★★★★★

Bester online-Pflanzenhandel den ich kenne (habe davor 4 andere ausprobiert). Eine teure Pflanze wurde beim Transport beschädigt und mir ersetzt. Der Kontakt dabei war auch sehr nett (danke Jan) und hat mir gut geholfen. Die anderen Pflanzen sind in einem sehr guten Zustand, keine Schädlinge, super Bewurzelung. Nur zu empfehlen! :)

C L

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Super Service, Gute Auswahl, Preise sind fair. Eine Pflanze kam kaputt an, hab sofort Ersatz bekommen. Danke an den unkomplizierten (und blitzschnellen) Kundenservice!!

Sarah

★★★★★

Envoie très rapide (2 jours), plantes parfaitement emballées et super offres ! Je suis une habituelle j'ai passé 6 ou 7 commandes et je n'en peut être plus satisfaite du service client et de la qualité et variété des plantes offertes

Iris

★★★★★

The plants have arrived in perfect condition, the roots and the foliage so so healthy! I had problem with 1 plant out of 16 and they have responded to my email almost instantly and the issue was resolved straight away. I'm really impressed and satisfied, definitely getting more plants from them again!

Patricija

★★★★★

I received perfectly heathy and absolutely beautiful plants, even bigger than expected. The delivery within Europe was really fast. I think Foliage Factory has one of the best plant web shops in the internet. It‘s just great to get so much informations about the plants. I will definitely order again :)

Walkerova