Dasylirion
Agavaceae
Evergreen, Shrubs
Native to deserts and mountains of the Southwest and Mexico. Clumps of narrow, grassy leaves spring from a woody base that can, with age, grow into a treelike trunk. Tiny flowers are tightly clustered on a tall, narrow spike. Provide good drainage. Very drought tolerant, but some irrigation will speed growth. Definitely needs summer water in low desert Zone 13.
Dasylirion longissimumSmooth-dged green leaves in fountainlike clump to about 5 ft. high and wide. Trunk is slow to form, but may reach 10 ft. tall. Eventually bears white to cream-colored flowers in early summer.
Forms a near-spherical clump 3 to 5 ft. high, 4 to 5 ft. wide. Stiff, spiky, bluish gray leaves to 3 ft. long have teeth along the edges. Leaves slowly form a trunk to 3 ft. tall, covered with dried, drooping shag of old leaves. Base of each leaf broadens where it joins the trunk to form a long-handled –spoon– prized in dried arrangements. Eventually produces white flowers on 9- to 15-ft.-tall spike in early summer.
Billbergia nutans
Common and easily grown.Narrow, spiny green leaves are1 1/2 ft. long. Spikes of rosy redbracts; droopi...
Anthemis
Some species are weedy, but those listed here (from southern Europe and Turkey) are fine garden plants...
Astrantia major 'Abbey Road'
Has deep pink to purplish red blooms on 2 1/2-ft.-tall, 2-ft.-wide plants.
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