Scientific: Impatiens balsamina
Common: impatiens, balsam, touch-me-not, snap weed
Family: Balsaminaceae
Origin: India, China, Malaysia

Pronounciation: Im-PAT-ee-ins bal-sa-ME-na

Hardiness zones:
Sunset All zones
USDA All zones

Landscape Use: Summer annual for shaded bedding plant areas such as entryways in Phoenix. Also, impatiens are a great choice for containers and hanging baskets.

Form & Character: This is a herbaceous perennial that is grown as a tender cool season annual (except December and January) or as a protected (shade) warm season annual in Phoenix.

Growth Habit: Erect and branching to 30 inches in height, often much less, equal to greater spread.

Foliage/texture: Broadly lanceolate leaves 1.5 to 6 inches long, the apex tapering to a point, deeply serrate to sometimes lobed; medium texture.

Flowers & fruits: Flowers axillary, 1 to 2 inches across on a short pedicel, often overtopped by leafy shoots, fruit is a asymmetrical capsule, hairy.

Seasonal color: Many flower colors mostly from white, pink, roes to lilac

Temperature: Not tolerant of winter temperatures below 32oF, and also struggles during the high heat of summer when highest daily temperatures in Phoenix often exceed 110oF.

Light: Shade to partial eastern sun

Soil: Garden soil with copious organic matter preferred, salt sensitive.

Watering: Regular, nearly daily during summer.

Pruning: Pinch apical meristems to encourage canopy density, otherwise mostly just leave impatiens alone and let them 'do their thing'.

Propagation: Seed

Disease and pests: Usually none because of its ephemeral use in the landscape as a summer color bedding plant.

Additional comments: Good color plant for only shaded areas in Phoenix summer and partially shaded areas in fall and spring. Readily available in local retail nurseries and home improvement centers. Most commercially available plants are double flowered.