Silver Dollar Gum
With few exceptions, these plants are native to Australia. More than 600 different species grow there, ranging from sprawling shrubs (many of them bearing the common name “mallee”) to skyline trees. About 150 species have been grown in areas of California and Arizona that have climates similar to the plants’ native Australian habitats; many more have been grown as solitary representatives in arboretums. Eucalypts are the most widely planted non-native trees in these two Western states—for several hundred miles in parts of California.Eucalyptus polyanthemos
Hardy to 14°F to 18°F (–10°C to –8°C). Grows to 30–75 ft. tall and 15–45 ft. wide, with gray-green, nearly round, 2–3-in. juvenile leaves and dark green, lance-shaped mature leaves. Young leaves are useful for fresh and dried arrangements. Select young trees carefully; some have leaves less round and gray than others. Good as a specimen or street tree. Can be used as a perennial in borderline climates.
Grows to 5 ft. tall and 2–3 ft. wide. Has excellent fragrance for cooking; blue flowers.
Perennial usually grown as an annual. An extremely vigorous Mexican native that can grow to 25 ft. tal...
Lush mat-forming groundcover from the western Mediterranean. Grows to 2–4 in. high, spreading in...