Stillingia Species, Queen's Delight, Queen's Root, Silver Leaf, Yaw Root
Stillingiasylvatica

Family: Euphorbiaceae (yoo-for-bee-AY-see-ee)
Genus: Stillingia (stil-LING-ee-uh)
Species: sylvatica (sil-VAT-ee-kuh)

Synonym:Stillingia

Category
Perennials

Water Requirements
Drought-tolerant; suitable for xeriscaping

Sun Exposure
Sun to Partial Shade

Foliage
Evergreen
Smooth

Foliage Color

Height
18-24 in. (45-60 cm)

Spacing

Hardiness
USDA Zone 7a: to -17.7 °C (0 °F)
USDA Zone 7b: to -14.9 °C (5 °F)
USDA Zone 8a: to -12.2 °C (10 °F)
USDA Zone 8b: to -9.4 °C (15 °F)
USDA Zone 9a: to -6.6 °C (20 °F)
USDA Zone 9b: to -3.8 °C (25 °F)
USDA Zone 10a: to -1.1 °C (30 °F)
USDA Zone 10b: to 1.7 °C (35 °F)

Where to Grow

Danger
Handling plant may cause skin irritation or allergic reaction

Bloom Color
Bright Yellow
Inconspicuous/none

Bloom Characteristics

Bloom Size

Bloom Time
Mid Summer

Other details

Soil pH requirements
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)

Patent Information
Non-patented

Propagation Methods
From seed; direct sow after last frost

Seed Collecting