Grow topics about growing plants with nutrients, substrates and techniques.

grow topics

Below we are discussing interesting cultivation topics for both the novice and the experienced grower. Would you like more information or do you have good input? Ask our Servicedesk!

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Growing problems

Potassium deficiency

Potassium deficiency

Plants suffering from a lack of potassium are smaller with a short, limp stem. In addition, you can recognise the deficiency by smaller flower tops and pale fruits. Leaves can turn yellow or die off. This starts first at the edges. There can also be brown or burned spots. A potassium deficiency is i...

Centipedes

Centipedes

The damage is not instantly recognisable because centipedes eat the roots of young plants in particular. This damage to the roots stunts growth and reduces the crop yield. It also gives bacteria and fungi the chance to take hold in the damaged roots

Iron deficiency

Iron deficiency

An iron deficiency is first visible in the top of the plant. A young leaf looks like it has been bleached. The leaves turn yellow, leaving the veins green. This is because after fixation, iron can no longer be distributed in the plant because the element iron (Fe) is immobile. When there is a shorta...

Magnesium deficiency

Magnesium deficiency

The deficiency becomes visible on the oldest leaves first. Small, rusty or cloudy yellow spots appear there. There may also be dead spots and the leaf tips curl up. As the spots spread, the leaves turn more yellow. The plant becomes more tattered and at this stage the young leaves start discolouring...

Phosphorus deficiency

Phosphorus deficiency

A sudden growth stagnation may be the first sign of a phosphorus deficiency. When this deficiency continues, a dark discolouration of the older leaves occurs at the bottom of the plant. With some plant species, the leaves at the bottom of the plant turn pale yellow or dark blue-green, this is due to...

Calcium deficiency

Calcium deficiency

A calcium deficiency leads to various growth disorders, such as deformed buds and deformed leaves. The tips of the leaves often curl up and there is a brown discolouration (dots) on the leaves. The first symptoms will be visible on the new leaves. The spots usually don’t appear on the lowest leave...

Cicadas

Cicadas

Cicadas produce rows of spots on leaves, fruit and flowers.

Mites

Mites

Mites (tetranychidae) measure between 0.2 and 0.5 millimetres and are difficult to see without a magnifying glass.

Thrips on plants

Thrips on plants

Thrips (thysanoptera) are small, slender insects with fringed wings.

Slugs

Slugs

Slugs can cause a huge damage to your plant in a short period of time. You can recognise slug damage by the typical holes eaten into the leaves. You can also see the slime trails. Slugs cause more damage than snails.

Nitrogen deficiency

Nitrogen deficiency

A nitrogen deficiency manifests itself mainly in slow growth and results in pale yellowish plants. Unfortunately, these symptoms are also caused by all kinds of other problems (for example stagnant water, soil disease and nematodes).

Cabbage root fly

Cabbage root fly

The symptoms of damage from the cabbage root fly are almost always the same. The main root turns brown because the larvae eat the roots. Eventually, the main root turns black and rots away completely. The damage can also be seen in the leaf, which does not get enough water and therefore wilts.

Growing terms

What does NPK value mean?

What does NPK value mean?

The NPK value indicates what the amount in mass percentage is of the three major components in plant nutrient

The basic needs of a plant

The basic needs of a plant

Like a human, your plant has a number of basic needs to survive and grow. In addition to food, these are light, water, carbon dioxide, temperature and humidity. These are also the most important indicators to make your cultivation a success.

Growing conditions

How much water do I have to give my plant exactly?

How much water do I have to give my plant e...

The type, size, age and general health of the plant all influence the plant’s water requirement. There is not a standard answer to the question: How much water does my plant need?

Growing outdoors

Growing outdoors: What is the best time to get started?

Growing outdoors: What is the best time to ...

You’d think it’s best to start when winter is over and the sun has made its return, but you’d miss out on some valuable months if you did that. You can get a head start in February by beginning to germinate your plants. Besides, you can already prepare the soil outside if you’re planning on ...

Pros and cons of growing plants outside

Pros and cons of growing plants outside

Growing outdoors for beginners.

Tips to get started - growing outside

Tips to get started - growing outside

Growing outdoors for beginners. Before you start your first outdoor grow, you need to make some choices. Each one of these will lead to certain advantages and drawbacks. In this topic we’ll give you tips and help you with a summary of the first questions that you need to answer for your growing p...

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