Q. How do I propagate Euphorbia trigona?
To propagate Euphorbia trigona, first use protective gloves to prevent any allergic reaction to the milky sap. As with almost all Euphorbias, when you take a cutting the plant will bleed a sticky, white sap--not a good substance to get into the eyes, cuts or sensitive skin.
For best results, propagate this deciduous succulent during spring or summer when temperatures are around 70-75°F. Cut off a healthy, unblemished stem end about 5-7 inches long. Use a clean razor blade or sterile sharp knife.
Cuttings root best during the hotter times of the year. Take the cutting. Let it callus over for a few days or so. Bury the cutting in perlite(available from nurseries) 2-3 or more inches deep, depending on the size of the cutting. Use a layer of coarse rock to add support to the plant and weight to the pot so the cutting won't tip. With perlite, the chance of over-watering is almost eliminated (perlite has replaced sand in current potting mixes). Put in a moderate lighted area, keep warm, and be patient.
Scientific Name: Euphorbia trigona
Common Name: African milk tree, cathedral cactus
For tips on a variety of gardening topics, see our Plant Information Guides.
- Courtesy of NYBG Plant Information Service