Rainbow Eucalyptus Tree For Sale

The tall, evergreen rainbow eucalyptus tree (Eucalyptus deglupta) gets its name because of the unique streaks of green, red, orange, gray, and purple that run along the trunk and branches when the tannin-filled bark peels. Outside of its native tropical setting, the rainbow colors aren’t usually as pronounced. However, it’s a striking gum tree regardless, and after the first year or two can produce small clusters of white flowers in different seasons depending on the location. Popular in places like Hawaii, where the humid, warm weather suits this species, it’s often grown as a large focal landscape tree and can be seen providing shade along the edges of streets.

This fast-growing tree won’t be for you if you have a compact yard. Outside of its native habitat, it can still reach heights of over 100 feet and, when the conditions are right, it can grow at least three feet every year.

  • Botanical Name Eucalyptus deglupta
  • Common Name Rainbow eucalyptus, rainbow gum, Mindanao gum
  • Family Myrtaceae
  • Plant Type Tree
  • Mature Size Up to 100 ft. tall, 60 – 100 ft. wide
  • Sun Exposure Full sun
  • Soil Type Moist but well-drained
  • Soil pH Acid, Neutral
  • Bloom Time Varies
  • Flower Color White
  • Hardiness Zones 10-11, USA
  • Native Area Malesia and Papuasia

Rainbow Eucalyptus Trees Care

Transplanting these trees is not a good idea—they aren’t fans of root disturbance. If you want to start seeds indoors, you’ll want to grow your rainbow eucalyptus in a large container that can be easily transplanted outside. You’ll want to select a warm, sheltered site as these trees don’t like cold, drying winds.

Because of their fast growth rate and size, choose a site that is far enough away from structures, foundations, power lines, and drainage systems as the sprawling roots could cause problems.

Light: Rainbow eucalyptus trees need plenty of sun, so plant in a position with access to unfiltered light.

Soil: This species thrives in deep sandy, loamy soils that are fertile, moist, and well-drained. It doesn’t appreciate high alkalinity in the soil, fairing better with neutral to slightly acidic pH levels.

Water: Although established rainbow eucalyptus trees can tolerate some drought, they need regular watering during their first year. The trees can’t handle prolonged flooding or waterlogged conditions, but keeping them moist will encourage the trunk and the bark to swell, encouraging more defined color stripes. Mulching around the tree can help conserve moisture, but make sure you don’t place the mulch up against the trunk.

Temperature and Humidity: These trees grow best in temperatures of around 70 to 85 degrees Fahrenheit and appreciate high humidity levels. Unsurprisingly, rainbow eucalyptus trees are not tolerant of frosts. Temperature, humidity, and airflow all have a considerable influence on how distinct the coloration of the tannins in the tree bark will be.

Fertilizer: Unless you plant your rainbow eucalyptus tree in highly infertile soil, it shouldn’t need feeding. They aren’t fans of phosphorus—plus, without fertilizer, you can slow down their infamously fast growth rate.

Pruning: Your established rainbow eucalyptus tree won’t need a lot of pruning unless you want to shape it, manage its height, or maintain a strong leader. The leader becomes less dominant as the tree ages and the branches start to curve up at the ends so that a flat, spreading crown develops. Removing any branches suffering from damage or disease can be done in late winter or early spring.

Uses: E. deglupta are commonly planted as ornamental trees in frost-free climates such as Hawaii, Southern California, Texas, and Florida.[17] It is planted in at least three locations in coastal Los Angeles County, including Santa Monica and San Marino at the Huntington Botanical Garden. These trees were still growing, but relatively young at approximately 30–40 years in 1988, at the UCLA Botanic Garden and as a LA City street tree.

If grown from seed, the temperature should be around 68–72 °F (20–22 °C).[19] Plants can be grown from cuttings of trees younger than 5 years old. Once a tree reaches 5 years of age, root inhibition prevents the generation of roots from cuttings.[20] It thrives in rich medium-to-wet soil in full sun and is intolerant of frost.[21] In botanical gardens such as Fairchild Tropical Botanic Garden in Florida, the tree does show an intense color range as seen in the tree’s normal range.