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Plant fertilizer

Learn more about the right fertilizer for your plants

Are you always looking forward to perk up your garden, balcony or terrace? New plants give their surroundings a boost. Especially when they look good; full of sturdy green leaves and exuberant flowers. You achieve this with the right growth & flowering plant nutrition!

To enjoy your new plants as long as possible, ofcourse you use quality potting soil . But eventually this soil will be exhausted and your plants will need food. The nutrients can then be supplemented with organic and/or mineral fertilizer. When you do this, you are assured of exuberant flowering and a strong plant that is resistant to diseases and pests.

Why is plant nutrition important?

When using the right fertilizer, your plants look better and last longer. The flowers become brighter in color, plants develop more flower buds, the leaves are greener and growth is stimulated. In addition, the nutrition increases the resistance.

Let your plants grow and flourish optimally by using quality fertilizer. For example, there is special plant nutrition for houseplants, but also plant nutrition specifically for roses or hydrangeas that contain other nutrients.

When and how often is plant nutrition necessary?

Give plants extra nutrition only during the growth period from March to October. This is the only period in which they need more nutrients. For most plants, feeding once a week is sufficient. If you have just bought or repotted a plant, it is best to wait two months for fertilizing.

On the packaging you will find the correct dosage. Never give more, because a plant can weaken and even die due to an excess of nutrition. If you notice that your plant reacts badly to the fertilizer, reduce the amount. Plants that grow slower or that do not get a lot of sunlight, need less nutrition.

Mineral fertilizer, organical manure or a combination?

Which one will you choose? And do you already know the advantages and disadvantages of the differtent types of manure? Read it below.

Mineral fertilizers

Mineral fertilizers contain ndash; other than you might expect ndash; also natural minerals and various natural stones. This manure works quickly, is odorless, pure and contains many nutrients. It is available in a fast and long-acting version. The disadvantage is that it does not have any effect on the soil structure.

Organic fertilizers

Most popular is organic manure. This type of fertilizer comes from organic products such as chicken manure, cow manure, bone meal and vinasse. It improves the soil structure and stimulates root growth for 3 months. The disadvantage is that you need more of it in comparison with the mineral fertilizer, it works less quickly, contains less nutrients and does smell a little bit.

Organic fertilizers also include biological fertilizers. Both have the same effect. The difference is that the biological variants are permitted and certified in organic farming.

Organic-mineral fertilizers

A combination of the two is obtained from organic products that have subsequently been enriched with various minerals. This has the following mainly positive effects: an improved soil structure, stimulation of root growth, long-lasting and visible quick results. The downside is that it smells.


The combination of an organic and mineral fertilizer is ultimately the best choice if you want both speed and a long-term, positive effect on the soil.

Which fertilizer is suitable for my plants?

Nutrition exists in all kinds of forms; granules, cones or liquid. Our preference goes to liquid fertilizers, because it is easy for plants to absorb. The advantage of granules or cones is that they have a longer effect. This will give your plant sufficient nutrients once every 6 months. Ideal if you leave for a long time or if you forget feeding regularly.

Fixed garden plants

Some fertilizers are suitable for all types of permanent garden plants. In that case the food ratio is not adjusted to the needs of a specific plant. This applies, for example, to (organic) garden manure, manure with extra magnesium and iron or manure with relatively high NPK ratios.

There are also plants that require special nutrients such as hydrangeas, rhododendrons, boxwoods, roses and Mediterranean plants. Choose a matching potting soil for these plants.

  • Hydrangeas and rhododendrons are acid-loving plants that last longer and flower abundantly if they receive special nutrition from March on;
  • Boxwoods stay longer nicely green by feeding them occasionally with boxwood nutrition between March and August;
  • Roses have a need for rose nutrition that ensures that they grow, bloom and stand firm.
  • Mediterranean and citrus plants (oranges, lemons, kumquat, grapefruit, olives, figs) come from countries with a warm climate and therefore need special nutrition;
  • Beeches and hedges maintain a high resistance when feeding them with beech and hedge nutrition;
  • Conifers and yews tend to turn brown quickly. With the right nutrition you will prevent brown needles;
  • Lavender flowers longer when you feed the plant 1 time in spring and 1 time in summer with lavender.

Plants in pot

Terrace and balcony plants are usually in pots. The soil in pots can quickly dry out or remain very wet. To prevent this, you can use hydro granules in addition to plant nutrition. These are very suitable as a drainage layer at the bottom of flower pots and planters. The grains also ensure that your plants grow well.

Houseplants such as the Cycas or Sansevieria grow slowly. They therefore need less nutrition, for example use half or a quarter of the indicated dosage. Keep in mind that a houseplant that is further from the window grows less quickly and will also use less nutrition.