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Black Calla

Arum palaestinum (AIR-um pal-ay-STI-num)

Family: Araceae Unknown Herbaceous

'Black Calla Lily' is a flowering perennial in the arum family that is native to eastern Mediterranean areas. This plant spreads by offsets and can be difficult to eradicate once established. It is easy to grow and is tolerant of different soil types as long as they are well-drained. It will grow in sun or shade but flowering is best with more sun. The trowel-shaped foliage emerges from the tuber in the fall and forms a clump that stays green all winter. It is important to have it in a very well-drained site. In spring the dark purplish-black spadix enclosed in a purplish-black spathe appears. The outside of the spathe is light green. The plant exudes the odor of rotting fruit to attract the flies that pollinate it. The berry-like fruits turn bright red at maturity. The plant is dormant during the summer. Use in a rock garden, border, naturalized area or containers. Insects, Diseases, and Other Plant Problems: C aterpillars, brown spot, and problems related to overwatering or root rot.

Source: NC State Extension Gardener Plant Toolbox ↗ NC State Extension Gardener Plant Toolbox, 45 attributes.

How it fits the guild

Guild layer 4 - Herbaceous
See companions & conflicts ↓

Companions & Conflicts

Curated pairwise relationships between this plant and others in the library — who feeds whom, who competes, who confuses the pests. Green reads as a good pairing, red as one to avoid.

No curated interactions recorded for this species yet.

Also noted by NC State

Related species the NC State Plant Toolbox flags for this plant — look-alikes to tell apart, and plants that play a similar role in a planting. Ones we carry in the library are linked.

Fills a similar niche Dianthus Dianthus chinensis x barbatus Euphorbia marginata

Full plant profile

Growing Conditions
Plant type
Herbaceous Perennial; Poisonous
Life cycle
Perennial
USDA zones
7a, 7b, 8a, 8b, 9a, 9b, 10a, 10b
Light
Full sun (6 or more hours of direct sunlight a day) | Partial Shade (Direct sunlight only part of the day, 2-6 hours)
Soil texture
Loam (Silt); Sand
Soil drainage
Good Drainage | Moist
NC region
Coastal; Piedmont
Maintenance
Low
Canopy layer
4 - Herbaceous
Form & Appearance
Habit / form
Clumping
Texture
Medium
Foliage
Deciduous
Leaf color
Green
Hairs present
No
Leaf detail
8-12 inch trowel-shaped green leaves
Flower color
Black; Brown/Copper; Purple/Lavender; Red/Burgundy
Flower value
Showy
Flower form
Spadix
Flower detail
A deep purple spadix surrounded by a red purple-brown to black spathe.
Bloom time
Spring
Fruit detail
Vibrant red seeds.
Wildlife & Ecology
Native status
Unknown
Origin
Syria, Lebanon, Jordan
Wildlife value
Deer resistant
Food & Medicine
Edible parts
Leaves

Edibility

The leaves can be eaten if cooked and are used in Middle Eastern diets.

Uses (ethnobotany)

Used in Middle Eastern herbal medicine

Landscape Use
Landscape location
Container; Naturalized Area
Landscape theme
Drought Tolerant Garden
Design feature
Border
Garden tags
#showy flowers #black flowers #problem for cats #rock garden #drought tolerant #naturalized area #deer resistant #poisonous #large leaves #problem for dogs #problem for horses #spadix #full sun tolerant #border planting #partial shade tolerant #perennial
Problems & Resistance
Problems
Poisonous to Humans; Problem for Cats; Problem for Dogs; Problem for Horses
Resistant to
Deer; Drought
Propagation
Division
Poison severity
Medium
Poison parts
Flowers; Fruits; Leaves; Roots; Sap/Juice; Stems
Poison symptoms
Eating small amounts of the raw plant causes mucous membrane irritation, and burning. Consuming larger amounts causes nausea, diarrhea, cramping, excessive drooling, vomiting (not horses), and difficulty swallowing.
Toxic principle
oxalate salts
Contact dermatitis
Yes
Toxicity summary
Medium severity poison; parts: Flowers; Fruits; Leaves; Roots; Sap/Juice; Stems; contact dermatitis

Planted at Hunnicutt

Nobody’s planted this one yet.