Cryptostegia Species, Rubber Vine
Cryptostegiagrandiflora

Synonym:Nerium grandiflorum

Category
Vines and Climbers

Water Requirements
Requires consistently moist soil; do not let dry out between waterings

Sun Exposure
Sun to Partial Shade

Foliage
Evergreen
Smooth

Foliage Color

Height
12-15 ft. (3.6-4.7 m)

Spacing
4-6 ft. (1.2-1.8 m)

Hardiness
USDA Zone 10a: to -1.1 °C (30 °F)
USDA Zone 10b: to 1.7 °C (35 °F)
USDA Zone 11: above 4.5 °C (40 °F)

Where to Grow
Grow outdoors year-round in hardiness zone

Danger
All parts of plant are poisonous if ingested

Bloom Color
Lavender
White/Near White

Bloom Characteristics

Bloom Size

Bloom Time
Late Winter/Early Spring
Mid Spring
Late Spring/Early Summer
Mid Summer
Late Summer/Early Fall
Mid Fall

Other details
May be a noxious weed or invasive

Soil pH requirements
5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)

Patent Information
Non-patented

Propagation Methods
From semi-hardwood cuttings
Self-sows freely; deadhead if you do not want volunteer seedlings next season

Seed Collecting
Collect seedhead/pod when flowers fade; allow to dry
Allow pods to dry on plant; break open to collect seeds