Tree Morning Glory

Ipomoea arborescens

Most of us think as morningglorys as annual vines in our gardens. This is actually in the same genus but grows to be a large tree. Also called Palo Santo.

Flowers: J F M A M J J A S O N D
Status: Near Native
Origin: Found just north of Hermosillo, reaching its largest in the mountains of southern Sonora.
Family: Convolvulaceae
Size: 12-40′
Sun: Full sun to filtered light
Watering: Low
Growth Rate: Fast
Soil: Well drained preferred
Temperature: Hardy to 27 degrees F
Disease and Pests:
Uses: The flowers of Tree Morning Glory are a food source for hummingbirds, bees and long-nosed bats
Notes: Winter deciduous. The seeds of plants in the Morning Glory family contain ergine a lysergic alkaloid, also known as LSD

Photo by sosar


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In Maricopa County the average first frost date varies from Nov 21st to Dec 12th. In Tucson the average first frost date is Dec 3rd.

  • Keep plants well watered
  • Place plants in a protected microclimate
  • Protect by covering plants, adding heat or increasing air circulation
  • Do not prune frost damage until plants begin growing

For more info: Protecting Frost Sensitive Plants