Cyclical leaf drop can precede the plant’s resting season and is described as normal in the exact species profile.
How to care for crown of thorns
Let crown of thorns dry between deep waterings, and give it direct sun.
Plant coveredEuphorbia miliiCrown of thorns · Indoor container
Find a bright, steady position
Light and temperature
Give crown of thorns full or direct sun. Part shade can reduce flowering.
Average-to-warm indoor conditions and low humidity are generally tolerated. Protect the plant from temperatures below about 35°F and from freezing.
Check the mix, drainage and pot
Watering, drainage and repotting
Allow the soil to dry between deep waterings and keep the medium drained. Wet, cold soil is discouraged.
Use a well-drained soil-based or similarly free-draining potting mix for the container.
Feed only during active growth
Fertilizer and active growth
Use a light, balanced fertilizer in spring and summer. Overfertilizing can produce soft foliage and fewer flowers.
Check the visible signs before changing care
Common problems
Leaf spots, stem or root rots, botrytis, scale, mealybugs, thrips, and mites are listed potential problems, especially where foliage or soil stays wet.
Use the verdict for this exact plant
Pet safety
Sources
- North Carolina State University Extension Gardener Plant ToolboxDescription; indoor care; cyclical leaf drop; insects, diseases, and other plant problems
- University of Wisconsin–Madison Division of ExtensionLight; watering; fertilizer; temperature; flowering; disease and hybrid context
- Pet Poison HelplineScientific name; oral and gastrointestinal signs; dermal and eye irritation
Pet-safety information for catalog plants uses ASPCA reference data where available. It is reference information, not veterinary advice.