Quick Facts. The Region. 1  Vancouver is the fourth largest city in the state of Washington with a population of 159,000. 2  It is located in Clark County, the oldest and fastest growing county in the state, which has a total population of 425,000.
'Tuscan Blue' rosemary Rosmarinus officinalis 'Tuscan Blue' is one of the best rosemary varieties for topiaries. It develops dense blue-green foliage that's easily sheared to any shape. It's highly fragrant and has many uses in the kitchen. It grows 4 feet tall. It grows as an annual except in Zones 8-10.
Yucca schidigera. Also called the Spanish Dagger, this evergreen shrub or small tree has a few upright branches and bayonet-like leaves from 2 to 4 feet long and 1-1/2 inches wide. The trunk is grayish-brown and 6 to 12 inches in diameter. The Mojave Yucca grows to a height of 16 feet.Flowers of the Yucca genus -- which includes the Joshua Tree (Yucca brevifolia) -- depend on the small, white Pronuba Moth for pollination.nteresting Facts About Yucca Plants. . . 1  Yucca wood has the lowest ignition temperature of any other wood, which makes it useful as a fire-starter. 2  The state flower of New Mexico is the yucca flower.. 3  Yucca plants are reliant on the yucca moth for pollination.