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 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
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
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
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