Regional natives of particular interest: Calystegia macrostegia 'Anacapa Pink' - Vine
Vine native to Anacapa Islands(this particular variety of the species), during winter-spring can grow abundantly with light pink blurred into white flowers. If given peripheral watering (not near trunk) can bloom for much of the year, but, if let to get to dry, as in nature, it typically only blooms mid-winter through spring.
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WE-8027A