PlantFun
Plant Needs
Sunlight
Full sun to partial shade; tolerates dry, sunny exposed sites and poor soil conditions
Watering
Drought-tolerant; water only when the top 2–3 cm of soil is completely dry to avoid root rot
Temperature
Tolerates cool spring temperatures; avoid frost exposure as it is a tender annual
Characteristics
- Leaf: Linear to falcate (sickle-shaped) leaves, arranged alternately along stems, glabrous with smooth margins
- Flower: Tiny greenish-yellow cyathia (typical Euphorbia inflorescences) clustered at stem tips
- Stem: Slender, branching stems with milky white latex sap when broken
Care Guide
Watering
Water sparingly when the top layer of soil dries out
Fertilization
Optional diluted, balanced feed once monthly. Avoid high-nitrogen fertilizers to prevent leggy, weak stem growth
Eggshell powder top-dressing：Sprinkle finely crushed, dried eggshells around the plant base to improve soil drainage and add calcium to support stem strengthPruning
- Deadhead spent cyathia to prevent unintended self-seeding if desired
- Remove yellowing stems after flowering to tidy the planting area
- Wear gloves when pruning to avoid direct contact with the milky sap
Toxicity
Warning: this plant may be toxic.
Pets & Humans
Pets: ASPCA: Toxic; sap contains diterpene esters causing oral irritation, vomiting
Humans: Milky sap causes mild skin irritation and oral discomfort if ingested
Garden Uses & Culture
Culture: N/A
Usage: Ornamental wildflower for rock gardens and naturalized planting areas
