The best medium for succulent plants will depend on the specific needs of the plants and the environment in which they are grown. 

Succulents are plants that have adapted to survive in dry environments, so they have special watering and soil needs. When it comes to soil, it's important to use a well-draining mix that will not hold onto excess moisture. This is because succulents are susceptible to root rot, which can be caused by consistently wet soil.

One of the most popular options for succulent soil is a mixture of potting soil and perlite or pumice. This helps to create a loose, well-draining medium that is suitable for most types of succulents. You can also add other ingredients, such as sand or grit, to help improve the drainage of the soil.

It's important to avoid using soil mixes that retain moisture for extended periods of time, as this can lead to problems with overwatering. 

What's the best medium for succulent plants?

Potting soil

Potting soil is a type of soil mix that is specifically formulated for use in containers, such as pots, planters, and raised beds. It is typically made from a combination of ingredients, including compost, peat moss, and perlite or vermiculite, which help to provide the plants with the nutrients and moisture they need to grow.

Potting soil is designed to be lightweight and easy to work with, and is typically free of weeds, pests, and diseases that could harm the plants. It is also typically pH-neutral, which means it is neither too acidic nor too alkaline, and is suitable for a wide range of plants.

There are many different types of potting soil available, and the best one for your plants will depend on the specific needs of the plants and the environment in which they are grown.

Some potting soils are formulated for specific types of plants, such as succulents, while others are more general-purpose and can be used for a variety of different plants.  

Peat moss

Peat moss, also known as sphagnum moss, is a type of organic matter that is commonly used in gardening and horticulture as a soil amendment. It is harvested from peat bogs, which are wetlands that are found in cool, temperate regions around the world.

Peat moss is light and fluffy, and has a high water-holding capacity, which makes it an effective soil amendment for plants that require consistently moist soil. It is also relatively low in nutrients, so it is often used in conjunction with other soil amendments, such as compost or fertilisers, to provide the plants with the nutrients they need to grow.

Perlite

Perlite is a lightweight, porous material. It is made from naturally-occurring volcanic glass that has been heated to a high temperature, causing it to expand and become porous.

Perlite is highly porous, which makes it an effective for improving drainage and aeration in soil. It is also relatively neutral in terms of pH, so it can be used with a wide range of plants. It is lightweight and easy to work with, and can be mixed into the soil to help improve drainage and aeration, or used as a top dressing to help retain moisture in the soil.

Succulent soil mixture

A good soil mixture for succulents should consist of:

• 1 part garden soil or potting soil
• 1 part perlite or coarse sand
• 1 part peat moss or coir

If you don't have access to perlite or coarse sand, you can use small rocks or gravel as a substitute. Just make sure that the rocks are not too fine, as this can interfere with drainage.

Finally, be sure to use a pot with drainage holes to allow excess water to drain out and prevent root rot.