Isodon Species, Trumpet Spur Flower
Isodonlongitubus

Family: Lamiaceae (lay-mee-AY-see-ee)
Genus: Isodon (EYE-so-don)
Species: longitubus (lon-jee-TOO-bus)

Synonym:Plectranthus longitubus

Synonym:Rabdosia longituba

Category
Perennials

Water Requirements
Drought-tolerant; suitable for xeriscaping
Average Water Needs; Water regularly; do not overwater

Sun Exposure
Sun to Partial Shade
Light Shade

Foliage
Deciduous
Herbaceous
Smooth

Foliage Color

Height
24-36 in. (60-90 cm)

Spacing
24-36 in. (60-90 cm)
36-48 in. (90-120 cm)

Hardiness
USDA Zone 6a: to -23.3 °C (-10 °F)
USDA Zone 6b: to -20.5 °C (-5 °F)
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)

Where to Grow
Grow outdoors year-round in hardiness zone

Danger

Bloom Color
Dark Blue

Bloom Characteristics

Bloom Size

Bloom Time
Late Summer/Early Fall

Other details

Soil pH requirements

Patent Information
Non-patented

Propagation Methods

Seed Collecting