Adenium Soil Requirements

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Adenium prefers lightweight, coarse soil.
Adenium prefers lightweight, coarse soil. (Image: Pink White Adenium image by djonghs from Fotolia.com)

Adenium obesum, commonly known as the desert rose, is a flowering succulent native to the soil of sub-Saharan Africa and the Arabian peninsula. The basic adenium soil requirements are a very well-drained and coarse planting soil. The plant easily dies from root rot if planted in regular garden soil or potting mix.

Moisture Control

Keeping soil moisture low is an essential adenium soil requirement. C&O Nursery suggests these steps to control soil moisture: Build a raised bed in areas that might flood or where drainage is poor, use a free draining soil mix, select a site with full sun and good air circulation, and avoid planting in areas that have automatic sprinklers.

Coarse Soil

Adenium prefers lightweight, coarse soil with sand, gravel and grit. You can add organic coarsening material to the planting bed up to one-third of the volume of planting soil, according to Gardening Guides. To make the planting soil free-draining, use clean, sharp sand, poultry grit, gravel, horticultural charcoal or lava rock. However, avoid using organic mulches around the plant.

Succulent Potting Mix

You can use a commercial succulent or cactus potting mix as the basis for the planting medium for your adenium, even adding other ingredients to the mix to make it more free-draining.

Perlite

Perlite (or sponge rock) is a lightweight, coarse planting material that helps with water drainage and remains lightweight even when you use a lot of it. Adding perlite to the adenium planting soil up to one-third of the overall planting soil volume helps ensure that the adenium roots never sit in waterlogged soil and that tender young roots can easily penetrate the planting soil, according to Gardening Guides.

Considerations

During the first two to three years, young adenium plants grow rapidly if you give them adequate fertilizer, slowly reducing the amount as the plant becomes more mature.

Adenium in Containers

You can grow adenium in any container that allows adequate drainage. Water should drain through the soil in seconds after being applied, according to the Desert Botanical Garden.

References

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