The Best DIY Succulent Cactus Soil Mix
A succulent cactus is a type of plant that falls under the category of succulents and is a member of the Cactaceae family which are in most cases small cactus plants and cacti in general.
In this no-fluff, helpful article, we dive into creating the best soil mix for succulent cactus plants which we have done multiple times in our growing lab with success, this ensures the best growth of your green friends with optimal cactus watering.
After using it we found that Coarse sand or grit serves as a critical component by enhancing the soil's drainage capacity. It prevents water retention around the roots, which can lead to root rot. This component is like the foundation of a house, ensuring stability and proper drainage.
The Ideal Soil Components for Succlent Cactus Soil:
Coarse Sand or Grit
Perlite or Pumice
Organic Matter
Organic matter provides essential nutrients (succulent fertilization) to plants. We saw that it is like a steady food supply, ensuring the cacti have the necessary nourishment to grow and thrive. But you also need to take care of the aeration in the soil.
Perlite but also pumice act as aerators and moisture regulators. They create air pockets within the soil, promoting healthy root growth and preventing compaction. They're akin to the shock absorbers in a car, providing a buffer and balance.
Parallel to filling raised garden beds, it is important to keep the right proportions and quantities of the soil components that's why we would recommend these quantities:
Proportions and Mixing
about 33% coarse sand
about 33% perlite or pumice
about 33% organic matter
But keep in mind that there are also other great soil mix varieties, not only succulent soil but also soil mix for herbs, some other components are Pine Bark Fines or Activated Charcoal.
Succulent cactus plants can store water and are akin to nature's little reservoirs. This distinctive feature demands a soil mix that supports excellent drainage. Imagine wearing a raincoat in a downpour; just as the coat keeps you dry, the right soil mix shields your cacti from excess moisture.
Understanding the Basics
Although succulent and cactus soil have small differences, both succulents and cacti like it when the soil has good aeration. Sticky and compact soil is terrible for succulents. The roots dont like it because it retains moisture for long periods, making it difficult for the plant to breathe.
Aeration
Just as a good foundation is crucial for a house, proper drainage is essential for succulent cacti. Ensure your pots have drainage holes in case something is wrong with watering the cactus.
Expert Tips:
Drainage
Adjustments
PH Level
Ensures the soil maintains a slightly acidic to neutral pH level, which is optimal for succulent cactus plants, allowing for better nutrient uptake and overall plant health.
Tailoring the soil mix to your specific environment is like customizing a suit. In more humid climates, increase the sand and perlite/pumice ratio. In drier areas, add a bit more organic matter.
Sources
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Succulents nutrients (fertilization): How and When to Fertilize Succulent Plants (epicgardening.com)
Soil moisture general information: https://www.drought.gov/topics/soil-moisture
Soil type, organic matter: What Is Organic Matter and Why Is It So Important - SARE
Soil type, perlite: What Is Perlite? A Gardener’s Guide To Perlite | Gardening Know How
Soil type: pumice: Planting With Pumice – How To Use Pumice As A Soil Amendment | Gardening Know How
Growing and general information on succulents: Succulent | Definition, Facts, & Examples | Britannica
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