What is the right soil for a planter?

Why is the right earth important?

In a planter, plants do not have access to natural soil layers. The soil in the tank is their only source of nutrients, water and oxygen. That is why it is crucial to make the right choice. The benefits of good soil are:

• Optimal root growth due to airy structure.
• Good drainage to prevent water accumulation.
• Long-term nutrition for healthy plants.

1. Basic choice: What types of soil are there?

There are different types of soil available, each with unique properties. Choose the right soil depending on your plants:

Universal potting soil

Suitable for most house and garden plants. Often enriched with fertilizers and suitable for a wide range of applications.

Special soil types

• Cactus and succulent soil: Dry and well-draining, ideal for plants that need little water.
• Flower and planter soil: Richer in nutrients and specially formulated for flowering plants.
• Vegetable garden soil: Ideal for vegetables and herbs, with extra compost and organic material.

2. How do you improve the earth?

Even good soil can be improved to meet specific needs of your plants. Add the following materials:

Compost

Compost is an excellent way to add nutrients and improve soil structure. Mix approximately 20-30% compost into the soil.

Perlite or vermiculite

These materials provide better drainage and airiness, which prevents root rot and brings oxygen to the roots.

Coconut fiber

An environmentally friendly alternative to peat. Retains moisture and helps keep the soil airy.

3. Drainage: prevent flooding

Good drainage is essential in a flower box. Water left standing for too long can lead to root rot and disease. Follow these tips:

• Hydro granules: Place a layer of about 2-3 cm on the bottom of the planter for better water drainage.
• Holes in the box: Make sure the planter has drainage holes to allow excess water to drain.
• Use a saucer: A saucer under the container collects water, but prevent it from being continuously full.

4. Replace or reuse: what do you do with old earth?

Reusing soil can save costs, but it also has disadvantages. Old soil may be depleted and contain pests or diseases. Consider the following:

• Replace: For annual plants or if you notice that the old soil drains poorly or has become compact.
• Reuse: Mix old soil with fresh compost and fertilizers to replenish nutrients.
• Sterilize: Heat old soil in an oven (at 80-90°C) to kill pests and mold.

5. Extra tips for healthy plants

Here are some additional tips to get the most out of your planters:

• Mulch on top: Cover the soil with a layer of mulch such as tree bark or coconut fiber. This retains moisture and prevents weeds.
• Feeding: Use liquid fertilizers or granules to feed your plants regularly.
• Watering: Water in the early morning or late afternoon to minimize evaporation.