It is actually two different kinds of succulents that have beengrafted togetherto create this sculptural, other-worldly-looking plant.
Once grafted together, these two Euphorbias make up the coral cactus.
Like all plants in theEuphorbiagenus, the latex sap of the coral cactus is toxic to humans and pets.
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Coral cactus cannot tolerate temperatures below 60F.
Fertilizer
Coral cactus is a slow grower that does not need a lot of fertilizer.
However, it benefits from a fertilizer designed for cacti and succulents.
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Apply it monthly during the spring and summer and stop fertilizing in the fall.
Pruning
The only pruning coral cactus needs is to remove any dead or diseased plant parts.
There might be extra stems growing from the base of the stem.
The Spruce / Cori Sears
It is easier and just as economical for home gardeners to purchase a new plant.
Use neem oil or insecticides to help treat more serious infestations.
In addition to these common pests, coral cacti are also susceptible toroot rotwhich usually results from overwatered conditions.
The Spruce / Cori Sears
Yellowing
If your coralcactus is turning yellow, the plant is likely suffering from overwatering.
If you suspect overwatering is the culprit, repot your coral cactus with fresh, dry soil immediately.
Check the roots of your plant to get to rule out root rot.
This is a natural progression of the growth of theEuphorbia neriifoliawhich makes up the rootstock of the coral cactus.
If you dont like the look of it, just prune them.
Environmental stress can cause the top portion of a coral cactus to start turning pink.
As long as the plants overall conditions are still okay your plant is likely going to be fine.
venture to determine which change is causing the stress and reverse it.
If your coral cactus isroot-bound, it needs to be repotted to a larger pot as soon as possible.
Doing this when the plant starts its active growing period in the spring is the best time.
Keep Away From Spurge Sap.
National Capital Poison Center.
