|Here in Sacramento, I have seen several homes with what appear to be vines with a large, deep blue Morning Glory type of flower growing up the sides of two story buildings. They receive full sun and appear to have no pest or disease problems.|
I would like to know what they are and where I might obtain seeds for them.
|There's a perennial morning glory (Ipomoea acuminata) that fits the description and is especially well suited to your growing zone (actually zones 8 & 9)so I suspect that's the plant you're seeing. It's a vigorous, rapid grower, reaching 15'-30' with dark green leaves and bright blue trumpet shaped flowers. It blooms in one year from seed and grows from cuttings, division and layering of established plants.|
Seeds are difficult to find, but a local nursery should carry the plants. Enjoy!