Choosing the right soil mix for your houseplants

Choosing the Right Soil for Your Indoor Plants

When we bring home a new houseplant or repot an existing one, the question often arises: Which soil should I choose?
The right substrate is crucial for healthy root development, proper growth, and the plant’s long-term well-being.
An inappropriate choice of soil is very often the hidden reason for a plant’s decline, especially for those who are still learning the hobby.

In this guide, we’ve also included our own recipe, so you can mix your own substrate similar to ours if you wish.

Below, we’ll introduce our four signature blends, each designed to meet the needs of every type of indoor plant — so they can thrive, bloom, and bring joy for years to come.
Find out which one is best suited for your plants.

Why is choosing the right substrate for indoor plants so important?

It’s still one of the most overlooked steps in plant care.
A good soil mix is essential for developing healthy roots, which can efficiently absorb water and nutrients necessary for strong growth and vibrant leaves.

Roots don’t just need water and fertilizer — they also need oxygen (that’s why airy soil is so important). Oxygen improves root quality and strengthens the plant’s resistance to disease.

If the roots aren’t healthy, they can’t absorb water or nutrients, and eventually, the plant will decline.

Never repot indoor plants into:

  • 100% compost
  • Outdoor or balcony soil mixes
  • 100% peat
  • or any substrate that holds too much water.

Compared to these, it would actually be better to keep the plant just in water or sand!
Outdoor plants have completely different requirements, while tropical indoor plants are far more sensitive, as they are grown in conditions that are not natural for them.

What happens if we use soil that’s retains too much water?

In the best-case scenario, your plant will grow slowly and have poor resistance to pests and diseases.

One of the first visible signs that the substrate isn’t suitable is stunted growth, followed by leaf damage (brown spots with yellow edges), bacterial infections, and eventually root rot, which leads to the death of the whole plant.

1. “Universal” Mix for Indoor Plants

The Universal Soil Mix is designed for a wide range of houseplants.
It’s perfectly balanced — both airy and nutritious — meeting the needs of most indoor species.

Composition: approx. 30% coco peat, 30% bark, 25% perlite, 10% compost, 5% charcoal.
pH: between 5.0 and 6.8

When to choose this mix:

  • If you don’t have a large plant collection, this one will suit most of your needs.
  • Ideal for: Calatheas, Marantas, Ferns, Epipremnums, Scindapsus, Ficus, Homalomena, Schefflera, Dracaena, Spathiphyllum, Begonias, Areca palms, and more.

2. “Tropical” Mix for Aroids and Other Tropical Plants

Our Tropical Mix was developed for slightly more demanding plants that need extra oxygen around their roots and dislike sitting in wet soil.
This is achieved through a higher content of pine bark, pumice, and perlite.
Even though it’s very airy, it still contains enough peat to retain moisture.
The bark also promotes the development of larger, stronger roots.

Composition: approx. 40% bark, 20% coco peat, 20% white peat, 10% volcanic clay, 5% perlite, and 5% biochar.
pH: between 5.5 and 6.5

When to choose this mix:

  • If you struggle with root rot or bacterial infections.
  • Ideal for: Monstera, Philodendron, Alocasia, Anthurium, Hoya, and other rare tropicals.
  • You can also mix “Tropical” with your existing substrate to improve structure.

3. “Desert” Mix for Cacti and Succulents

This mix is ideal for plants that live in arid conditions and truly hate wet feet.
It includes fine, airy components such as perlite, volcanic clay, and sand, allowing even delicate roots to spread easily.

Composition: approx. 30% coco peat, 25% white peat, 20% perlite, 20% pumice, and 5% sand.

When to choose this mix:

  • For cacti and succulents like Echinocactus, Mammillaria, Gymnocalycium, Astrophytum, Opuntia, Haworthia, Echeveria, Crassula, Lithops, Kalanchoe, Senecio, Ceropegia, etc.
  • To improve drainage in pots with poor water flow.
  • If your succulents don’t dry out within a week or show signs of infection.

4. “Semi-Hydro” Substrate for Semi-Hydroponics

Semi-hydroponics is a growing method suitable for more experienced plant lovers.
This approach eliminates organic matter that can cause rot and bacterial infections.
The substrate is very airy, supporting root health and overall plant vitality.

We recommend this mix for those who find our “Tropical” blend too rich and want more control over their rarer plants.

You can read more about semi-hydro growing in this article.

When to choose this substrate:

  • For larger collections of rare plants.
  • If you want to simplify plant care and avoid root rot.
  • If you already understand the basics of plant maintenance.

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