How do I propagate Euphorbia trigona?
Answer
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, and let it callus over (heal enough that it is no longer soft and moist) 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.
Family: Euphorbiaceae
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
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