Scientific: Santolina rosmarinifolia subsp. rosmarinifolia (formerly S. virens)
Common: green santolina, green lavendar cotton
Family: Asteraceae
Origin: Mediterranean

Pronounciation: San-to-LEE-na ros-mar-in-i-FOL-i-a

Hardiness zones
Sunset
All as annual, perennial in zones 8-24
USDA All as annual, perennial in zones 6-11

Landscape Use: Low border or edging, containers, sensory gardens.

Form & Character: Evergreen woody subshrub, mounding, free, green.

Growth Habit: Slow to 3 feet, can be maintained at 1.5 to 2 feet tall with greater spread.

Foliage/Texture: Sessile, small highly pinntified aromatic, green leaves to 1.5 inches long; fine texture.

Flowers & Fruits: Yellow button flowers on 6 to 12 inch peduncles in spring, not necessarily attractive.

Seasonal Color: None

Temperature: Cold tolerant to 0oF and heat tolerant to 110oF.

Light: Full sun

Soil: Tolerant, but well drained a must!

Watering: Infrequent once established, more frequent during summer months.

Pruning: Periodic light shearing will maintain a dense and rounded habit. Otherwise green santolina plants will become 'floppy'. Also, shear off flowers in late spring to promote a tight growth habit.

Propagation: Cutting and seed.

Disease and pests: Fungal root and basal crown rots if soil is poorly drained.

Additional comments: A serviceable aromatic perennial sub-shrub for oasis gardens. Said to be fire and deer resistant. 'Primrose Green' and 'Lemon Fizz' are two named cultivar that is dwarf in habit.

Gray leaf form is Santolina chamaecyparissus is superior for Phoenix landscapes.

Santolina neapolitana has similar characteristics to green santolina, but is larger and more upright and shrub-like.