Red Trumpet vine has lots of pretty red flowers. I am warning you that it is an aggressive climber. You can see an example at the intersection of Matilda and Sunnyvale-Saratoga Road. Another example is on the south side of Sunnyvale-Saratoga Road past Fremont just past the Falefal-stop restaurant. I have a plant growing in a 3-inch wide trench and I have to prune it several times a year to keep it from over-climbing the 8 foot wall.
Details
Family: Bignoniaceae (big-no-nih-AY-see-ee) (Info)
Genus: Campsis (KAMP-sis) (Info)
Species: radicans (RAD-ee-kans) (Info)
Synonym:Tecoma radicans
Synonym:Bignonia radicans
Category: Vines and Climbers
Height: 20-30 ft. (6-9 m)
Spacing: 6-8 ft. (1.8-2.4 m)
Hardiness:
USDA Zone 4a: to -34.4 °C (-30 °F)
USDA Zone 4b: to -31.6 °C (-25 °F)
USDA Zone 5a: to -28.8 °C (-20 °F)
USDA Zone 5b: to -26.1 °C (-15 °F)
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)
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)
Sun Exposure: Sun to Partial Shade
Danger: Handling plant may cause skin irritation or allergic reaction
Bloom Color: Red, Orange, Red-Orange, Gold (Yellow-Orange), Bright Yellow
Bloom Time: Mid Summer, Late Summer/Early Fall
Foliage: Deciduous
Other details:
May be a noxious weed or invasive
This plant is attractive to bees, butterflies and/or birds
Average Water Needs; Water regularly; do not overwater
Soil pH requirements: 6.1 to 6.5 (mildly acidic), 6.6 to 7.5 (neutral), 7.6 to 7.8 (mildly alkaline)
Patent Information: Non-patented
Propagation Methods:
By dividing rhizomes, tubers, corms or bulbs (including offsets)
From softwood cuttings
From hardwood cuttings
Allow cut surface to callous over before planting
From seed; direct sow outdoors in fall
From seed; stratify if sowing indoors
By simple layering
By air layering
By serpentine layering
Seed Collecting: Allow pods to dry on plant; break open to collect seeds. Properly cleaned, seed can be successfully stored
Read more: http://davesgarden.com/guides/pf/go/644/#ixzz3HUWCl0Za
