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What Flowers Can I Grow in Arizona?

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arizona desert image by John Keith from Fotolia.com

Arizona offers a mild winter and hot summer, and to maintain a garden, you’ll need plants that are hardy from zones 5 through 10, depending on the individual location. The U.S. Department of Agriculture's hardiness zone ratings shows the average minimum temperatures of a region. This way, when you buy plants in the hardiness zone for your state, you know your plant can handle the temperatures. For Arizona, it ranges from zone 5 (minimum -20 degrees F.) to zone 10 (minimum 35 degrees F.).

Larkspur

Larkspur is from the buttercup family of plants and botanically named Consolida ajacis. It is an easy-growing annual that attracts hummingbirds. It grows 2 to 3 feet tall, and its bright-green leaves are feather-like. The flowers are on spikes, and the colors depend on the cultivars. It is hardy in zones 3 through 11. Propagate via seed in full sun with regular watering.

  • Arizona offers a mild winter and hot summer, and to maintain a garden, you’ll need plants that are hardy from zones 5 through 10, depending on the individual location.

Nasturtium

Nasturtium is from the nasturtium family of plants and botanically named Tropaeolum majus. It is a fast- and easy-to-grow annual that attracts hummingbirds. It grows up to 5 feet high, and its pale-green leaves are 2 to 5 inches wide. The flowers are 1 to 2 inches wide, and their colors depend on the cultivar. It is hardy in zones 4 through 11. Plant a nasturtium in zones 4 through 8 in spring and 9 through 11 in the winter. Propagate via seed in full sun or light shade in light soils with regular watering.

  • Nasturtium is from the nasturtium family of plants and botanically named Tropaeolum majus.
  • The flowers are 1 to 2 inches wide, and their colors depend on the cultivar.

Dwarf Plumbago

Dwarf plumbago is from the leadwort family of plants and botanically named Ceratostigma plumbaginoides. It is a perennial shrub that grows to 12 to 18 inches tall. The 3 ½-inch leaves are deciduous and go from green to red-orange in the fall. The blue flowers are ¾-inch wide and grow from summer to fall. It is hardy in zones 5 through 9. Propagate via cuttings or division in full sun or partial shade in moist, well-drained soil.

Crown Vetch

Crown vetch is from the bean family of plants and botanically named Coronilla varia. It is a fast-growing perennial vine that grows up to 2 feet tall. The leaves are an inch long, and the flowers are clover-like and ½-inch long. It can spread approximately 15 feet and is hardy in zones 4 through 9. Propagate via seed in full sun with regular watering.

  • Dwarf plumbago is from the leadwort family of plants and botanically named Ceratostigma plumbaginoides.
  • The 3 ½-inch leaves are deciduous and go from green to red-orange in the fall.

Angel's Trumpet

Angel’s trumpet is from the nightshade family of plants and botanically named Datura inoxia var. quinquecuspida. It is a fragrant, drought-tolerant perennial shrub that grows 3 feet tall and 6 feet wide. The coarse leaves are 10 inches long, and the trumpet-like flowers bloom in the summer and are 8 inches long with the color varying by the cultivar. It is hardy in zones of 5 through 10. Propagate via division or seed in well-drained soils with partial to full sun conditions.

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