|Plese recommend an evergreen that is not deciduous
to cover a cyclone fence that is in direct sunlight and
will sustain temperature during the winter under 20 and the
summer up to 105 degrees for Concord, CA.
I have planted jasmine twice in 8 years but it dies.
|Here are a few suggestions:
Bauhinia yunnanensis (climbing bauhinia) - An evergreen shrub that climbs by tendrils and produces many pink to light mauve flowers.
Bignonia capreolata (cross vine) - A vigorous, evergreen vine to 40 feet (usually much smaller in the landscape) with attractive, large, green leaves. Produces a profusion of tubular flowers which are reddish outside and yellow inside from late spring through summer. A good choice from growing on a trellis or fence. Native to the southeastern United States. It grows well in partial shade to full sun.
Clematis armandii (evergreen clematis) - An evergreen climber to 25 feet with shiny, coriaceous, dark green, trifoliate leaves and vanilla scented, star like, white flowers.
Ficus pumila (climbing fig) - Climbing by its roots, this evergreen with small, dark green leaves makes an excellent wall cover.
Gelsemium sempervirens (carolina jasmine) - A fast growing, evergreen vine with multitudes of showy, fragrant, yellow flowers each spring.
Lonicera sempervirens (coral honeysuckle) - A vigorous, evergreen vine with fragrant, tubular, red flowers followed by bright red fruit.
Manettia luteorubra (candy corn vine, brazilian firecracker) - A twining, evergreen vine to 12 feet with reddish, tubular flowers having yellow tips that look like old fashioned candy corn.
Thunbergia grandiflora (blue trumpet vine) - A wonderful, woody twiner with large numbers of unbelievably gorgeous, 3 inch wide, funnelform, blue-violet flowers.
Best wishes with your landscape!