Scientific: Matthiola incana
Common: stock
Family: Brassicaceae (formally Cruciferae)
Origin: Mediterranean

Hardiness zones
Sunset
8, 9, 12-24 as winter annual
USDA 9-11 as winter annual

Landscape Use: mass color, bedding plant, cut flower, border, edging

Form & Character: Hardy herbaceous perennial, old fashion garden plant

Growth Habit: upright, 12-36" tall depending on cultivar

Foliage/texture: Leaves tomentose gray green, oblong and sessile to 4" long

Flowers & fruits: Flowers single and double, white to lavender on terminal spikes, flowers are fragrant, Fruit are an elongated narrow green capsule.

Seasonal color: Winter, spring

Temperature: Hardy to 25oF, best below 80oF

Light: Full sun

Soil: Prefers slightly alkaline medium-textured soils, good drainage

Watering: Regular watering best, will take some drought

Pruning: Remove spent bloom spikes to encourage continued flowering

Propagation: Seed, 85% doubles and 15% singles

Disease and pests: Nematodes

Additional comments: Great, dependable, winter annual for Phoenix. Best used in mass plantings where individual plants are spaced at 8 to 18" apart depending on plant vigor. Tissues are a source of omega-3-linolenic (18:3) fatty acid, known to reduce arteriosclerosis and chronic inflammatory heart disease.