Kidneywood – Eysenhardtia orthocarpa
Height: 15 – 20 feet Width: 12 – 16 feet Bloom color: White Flowering season: Spring, Summer, Fall USDA minimum zone: 8 Cold hardiness: 15° F
Knife Leaf Acacia – Acacia cultriformis
Height: 6 – 12 feet Width: 6 – 12 feet Bloom color: Cream Yellow Flowering season: Late Winter, Early Spring USDA minimum zone: 8 Cold hardiness: 16° F
La Jolla Red Bougainvillea – Bougainvillea ‘Ja Jolla’
Height: 4 – 5 feet Width: 4 – 5 feet Bloom color: Red Flowering season: Spring, Summer, Fall USDA minimum zone: 9 Cold hardiness: 20° F
Large-Flowered Coreopsis – Coreopsis grandiflora
Height: 1 – 3 feet Width: 1 – 2 feet Bloom color: Yellow Flowering season: Spring, Summer USDA minimum zone: 4 Cold hardiness: -20° F
Lavender Trumpet Vine – Clytostoma callistegioides
Height: 16 – 20 feet (with support) Width: 16 – 20 feet (with support) Bloom color: Lavender Purple Flowering season: Spring, Summer, Fall USDA minimum zone: 8 Cold hardiness: 20° F
Leather Leaf Acacia – Acacia craspedocarpa
You probably have a good idea of why this Australia native is called leatherleaf acacia if you’ve ever touched one of its coarse gray-green leaves. Although it grows fairly slowly, this resilient and versatile evergreen shrub is just as tough as it feels; growing in any soil with good drainage and accepting reflected heat and…
Lechuguilla – Agave lechuguilla
Height: 1 – 3 feet Width: 3 – 4 feet Bloom color: Yellow Flowering season: Summer (usually after 20+ years age) USDA minimum zone: 6 Cold hardiness: 0° F
Lemon Dalea – Dalea capitata
If you’ve ever come across a Lemon Dalea in spring or fall, you may be inclined to think that it is named for the masses of lemon-yellow flowers that appear on spikes when this groundcover is in bloom. If you’ve ever stepped on a Lemon Dalea, however, you probably know that the plant is named…
Joan Lionetti Live Oak – Quercus fusiformis ‘Joan Lionetti’ PPAF
Named for the founder of Trees for Tucson, the Joan Lionetti live oak is the first and only oak cultivar that was selected and bred specifically for our unique growing conditions in the arid Southwest. Quercus fusiformis was once classified as a subspecies of the southern live oak (Q. virginiana), and the two trees are…