Grevillea is a genus (group) of about 250 trees and shrubs, almost all of which are Australian. About 130 of them grow in Western Australia. A few grow in New Caledonia and New Guinea. Most are colorful shrubs. The leaves vary in shape, but are often harsh or prickly. The flowers grow in rounded or brushlike heads in a range of colors. They are often called spider flowers.
Grevillea are grown as ornamental plants. They prefer a rich neutral, or acid, soil.
