Scientific: Tagetes lemmonii (not to be confused with  Tagetes lucida, Mexican tarragon)
Common: Mt. Lemon marigold, Mexican bush marigold, Copper Canyon marigold
Family: Asteraceae
Origin: Southwestern US into Mexico and central America

Hardiness zones
Sunset
8-10, 12-24
USDA 8-11

Landscape Use: Accent shrub, sensory gardens, xeriscape, background, low screen.

Form & Character: Mostly herbaceous perennial, vigorously upright and open, informal.

Growth Habit: Moderate to rapid, 5 -8  feet in height with

Foliage/Texture: Dark green pinnately compound leaves with tinges of reddish bronze to 4" long, heavily aromatic, medium fine texture.

Flowers & Fruits: Small, terminal, yellow daisy flowers, fruits inconspicuous.

Seasonal Color: Yellow blooms throughout late fall to spring depending on location of culture

Temperature: Not tolerant of lower desert heat in exposed planting locations. Also, damaged by cold at around 20oF.

Light: Full sun

Soil: Tolerant of alkaline soil

Watering: Once every two weeks during the summer.  Withhold water to slow vigor.

Pruning: Shear back heavily during late spring (after flowering) or fall (before cool season growth) to stimulate growth and flowering 

Propagation: Seed, cutting

Disease and pests: None

Additional comments: Great desert native xeriscape accent perennial shrub. Mt. Lemon marigold is named after John G. Lemmon (1832-1908) who first collected this plant for cultivation in 1882 from the Huachuca Mountains in Cochise County, AZ. T. lucida (Mexican tarragon) has simple leaves. Heavy fragrance of foliage is offensive to some.