PlantFun
Plant Needs
Characteristics
- Leaf: Large, finely divided, feathery silvery-green basal leaves that die back after flowering
- Flower: Dense, flat-topped umbels of tiny bright yellow florets
- Stem: Thick, hollow, fleshy central stem with a resinous, aromatic coating
Care Guide
Water deeply every 7–10 days during active growth; allow soil to dry fully between waterings
Diluted balanced liquid feed once monthly. Use low-nitrogen feed to prevent excessive leaf growth at the expense of flowering
Eggshell powder topdress：Sprinkle finely ground, dried eggshells around the plant base; avoid direct contact with stems to prevent moisture buildup and rot- Remove spent flower heads after blooming to control self-seeding if desired
- Cut back dead basal foliage to ground level in late autumn to tidy the planting area
- Trim damaged or discolored stems at the base in early spring before new growth emerges
Toxicity
Warning: this plant may be toxic.
Pets: ASPCA: Toxic due to furanocoumarins; may cause vomiting, diarrhea, and skin irritation from sap contact
Humans: Contains furanocoumarins that cause photodermatitis if skin is exposed to sunlight after contact; ingestion may cause gastrointestinal distress
Garden Uses & Culture
Culture: Associated with ancient Greek and Roman ceremonial practices; historically used as an incense and medicinal resin
Usage: Ornamental focal point in dry Mediterranean-style gardens; resin was historically used for traditional medicine
