Propagating Crown of Thorns (Euphorbia milii) from Stem Cuttings

Step-by-Step

1. Take 2–3″ tip cuttings.
2. Let cut ends callus overnight (sap is irritant—wear gloves).
3. Plant multiple cuttings in shallow pot: 2–3 parts peat moss + 1 part perlite.
4. Keep mix damp (water when top ½″ dry).
5. Warm (70°F+), bright indirect light for 6–8 weeks.
6. Then move to sunny windowsill.

Success Factors

Bottom heat speeds rooting. High humidity (plastic tent) helps but ventilate daily. Cuttings root reliably with these conditions.