Grow knowledge

Whether you’re a starting grower or an expert: there’s always room to learn. On this page you’ll find our extensive knowledge database, straight from the minds of our Grow Experts.


Download whitepapers, catalogues and premade grow schedules.

Deficiencies: Prevention and cure

Pests: Recognition and control

Preparation and germination - Growing outdoors

Start & Growth phase - Growing outdoors

Flowering phase & harvest - Growing outdoors

Grow topics

Grow knowledge: we’ve got plenty of it. We think these Grow topics may be of interest to you.

Identify symptoms of nitrogen deficiency in plant leaves

The basic needs for growing indoor plants

What is NPK value in plant nutrients?

Myths and truths about growing with Sugar Royal

Best buds! Green Sensation and Sugar Royal

Concrete jungle at 17m²

Phosphorus deficiency

Centipedes: how to recognise damage?

Cabbage root flies: how to recognise damage?

Tips to get started - growing outside

Growing outdoors: When to get started?

How much water do my plants need?

How fresh air and carbon dioxide help indoor plants grow

Lazy plants

Basic knowledge about cultivation problems

What does EC value of your nutrient solution mean?

Which planting tools do you need during your culture?

Remove suckers to save energy

Which grow style to use?

How can I improve soil quality for various soil textures?

How do I prepare pots for the plants

Introduction to the flowering phase

When does flowering start?

Green Sensation is four products in one

Terra Grow basic nutrient for indoor growing


Low level of potassium in leaves: Symptoms are shown during flowering.

Cicadas: how to recognise damage?

Pros and cons of growing plants outside

How does temperature affect plant growth in grow rooms?

Ph levels for plants: The ideal soil ph and nutrient water ph

Organic or mineral growing: What difference does it make to your plants?

How to plant young plants or cuttings

How can you recognise your plant’s bloom?

Green Sensation is user friendly

Fast results with Terra Bloom in the flowering phase

Our grow experts are ready to help you

Big things come in small packages

Big, bigger, biggest!

Magnesium deficiency

Thrips: how to recognise damage?

Basic definitions you need to know

The Kelvin colour scale of led lights for indoor plants

What does a healthy root system do for your plant?

What is the Brix value?

How to make a nutrient solution for plants

What nutrient does a flowering plant need?

The truth about flushing before harvest

Growing indoors with 100% Hydro and Green Sensation

Organic growing with Alga Grow and Alga Bloom

Greeny_lab: sharing knowledge

Calcium deficiency in plants: Plant leaves turning brown and curling up

Spider mites: how to recognise damage?

What influence does nature have?

Humidity control for plants growing indoors

How to see if your plant is healthy

What is a mother plant?

Enzymes in Pure Zym as catalysts

What does a plant need in the growth phase?

What does a flowering plant need? Support and maintenance.

Green Sensation: only the best quality

Habaneros: a dream come true

Iron deficiency

Slugs and snails: how to recognise damage?

Do I need a substrate?

What is the first sign of flowering for an indoor plant?

How to repot indoor plants without transplant shock

Creating and using a grow schedule

Do's & Don’ts of flowering: Do's

Green Sensation is very cost-effective

EC reading: Electrical conductivity in units

Harvesting after growing indoors

Promix: the best organic potting soil for growing outdoors

Do I need basic nutrition?

Copper deficiency

Caterpillars: how to recognise damage?

Trouble and dangers of the growth phase

What are the advantages of PK13-14?

Do's & Don’ts of flowering: Don’ts

Do I need additives?

Zinc deficiency

Carrot flies: how to recognise damage?

The perfect pot for your plant

Protecting your plants from pests

Protection against extreme weather

Which tools and supplies do I need?

Boron deficiency

Fungus gnats: how to recognise damage?

Ready for the flowering phase?

What you need to know about harvesting

Your first low budget indoor or outdoor grow with recyclable products

Molybdenum deficiency

Aphids: how to recognise damage?

Outlook: growing in May, June & July

Using excess plant material to re-use soil and improve soil fertility

Where can I get help?

Manganese deficiency

Leaf miners: how to recognise damage?

Using the product selector

Discover our 100% COCO grow style

Where do I buy my grow supplies?

Sulphur deficiency

Whiteflies: how to recognise damage?

When can I move my plants outside?

​​The art of scrogging

Propagate from cuttings or seeds?

Topping your plants


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