Toothless Spoon – Dasylirion longissimum
Height: 4 – 8 feet Width: 6 – 9 feet Bloom color: White Flowering season: Summer USDA minimum zone: 8 Cold hardiness: 15° F
Thunder Cloud Texas Ranger – Leucophyllum candidum ‘Thunder Cloud’
Height: 3 – 4 feet Width: 3 – 4 feet Bloom color: Dark Purple Flowering season: Summer, Fall USDA minimum zone: 7 Cold hardiness: 10° F
Torch Glow Bougainvillea – Bougainvillea ‘Torch Glow’
A fairly new introduction to the long list of Bougainvillea varieties, ‘Torch Glow’ offers the same infamous drought and heat tolerance as other varieties without the need of a trellis for support. Multiple stems grow upright from the base of the plant, and leaves cling closely to the branches, giving this shrub an interesting, twisting…
Thornless Mexican Lime – Citrus Lime Mexican Thornless (Standard)
Harvest year-round in Tucson. Height: 10 – 15 feet Width: 10 – 15 feet Bloom color: White Flowering season: Spring USDA minimum zone: 9 Cold hardiness: 28° F
Thread Leaf Agave – Agave filifera
Height: 1 – 2 feet Width: 2 – 3 feet Bloom color: Greenish Yellow Flowering season: Summer (mature plants only) USDA minimum zone: 8 Cold hardiness: 17° F
Thread Leaf Agave – Agave schidigera
Height: 2 – 4 feet Width: 2 – 3 feet Bloom color: Greenish Yellow Flowering season: Summer (mature plants only) USDA minimum zone: 8 Cold hardiness: 15° F
Thorn-Crested Agave – Agave lophantha
Height: 1 – 2 feet Width: 3 – 4 feet Bloom color: Green to Yellow Flowering season: Summer (mature plants only) USDA minimum zone: 8 Cold hardiness: 20° F
Thornless Chilean Mesquite – Prosopis chilensis hybrid
Height: 25 – 30 feet Width: 25 – 30 feet Bloom color: Yellow Flowering season: Spring USDA minimum zone: 8 Cold hardiness: 10° F
Thompson’s Yucca – Yucca thompsoniana
Height: 6 – 8 feet Width: 4 – 6 feet Bloom color: Cream White Flowering season: Late Spring, Early Summer USDA minimum zone: 6 Cold hardiness: -10° F