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Heliotrope

Heliotropium arborescens (hee-lee-oh-TROH-pee-um ar-bor-ESS-enz)

Family: Boraginaceae Unknown Herbaceous (1-3 ft)

Heliotrope is a tender perennial shrub grown as a summer annual or florist plant. In its natural tropical range, it can grow 2 to 6 feet tall by 6 to 8 feet wide, although plants up to 2 feet tall and wide are the norm. It is strongly fragrant with a vanilla-like scent. The species epithet is Latin for "becoming tree-like," in allusion to its large size under ideal conditions. All parts of the plant are poisonous, but toxic to humans only if consumed in large quantities. However, it is toxic to horses and can induce liver failure. Although not very palatable, it will be eaten by animals with no other forage, or when hay is contaminated. More information on Heliotropium .

Source: NC State Extension Gardener Plant Toolbox ↗ NC State Extension Gardener Plant Toolbox, 44 attributes.

How it fits the guild

Guild layer 4 - Herbaceous (1-3 ft)
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.

Full plant profile

Growing Conditions
Plant type
Annual; Herbaceous Perennial; Poisonous
Life cycle
Annual; Perennial
USDA zones
10a, 10b, 11a, 11b
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
High Organic Matter
Soil drainage
Good Drainage
Available space
12 inches-3 feet
Mature size
Height: 1 ft. 0 in. - 1 ft. 6 in. | Width: 1 ft. 0 in. - 1 ft. 6 in.
Maintenance
Low
Canopy layer
4 - Herbaceous (1-3 ft)
Form & Appearance
Habit / form
Spreading
Foliage
Broadleaf Evergreen
Leaf color
Green
Leaf type
Simple
Leaf arrangement
Alternate
Leaf shape
Ovate
Leaf feel
Rough
Leaf size
1-3 inches long
Hairs present
No
Leaf detail
Rough, dark green leaves (to 3” long) are prominently veined.
Flower color
Purple/Lavender
Flower value
Fragrant; Showy
Flower detail
Flowers are small, on a slender, coiled, stem. The buds are a deep lilac and lighten with age to almost white.
Bloom time
Fall; Summer
Wildlife & Ecology
Native status
Unknown
Origin
Western South America
Attracts
Bees; Butterflies; Moths; Pollinators
Landscape Use
Landscape location
Container; Houseplants
Garden tags
#purple #poisonous #deer resistant #spreading #tender perennial #well-drained soil #summer flowers #problem for horses #tropical feel #full sun tolerant #partial shade tolerant #perennial #fragrant flowers #florist plant
Problems & Resistance
Problems
Poisonous to Humans; Problem for Horses
Resistant to
Deer
Propagation
Seed; Stem Cutting
Poison severity
Medium
Poison parts
Flowers; Fruits; Leaves; Roots; Sap/Juice; Seeds; Stems
Poison symptoms
Digestive upset and liver damage
Toxic principle
Pyrrolizidine alkaloid
Contact dermatitis
No
Toxicity summary
Medium severity poison; parts: Flowers; Fruits; Leaves; Roots; Sap/Juice; Seeds; Stems

Planted at Hunnicutt

Nobody’s planted this one yet.