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Boojum Tree, Cirio
Scientific Name: Idria columnaris Kellogg
Synonym: Fouquieria columnaris
Family: Fouquieriaceae
Boojum Tree, Cirio (Idria  columnaris) Recommended Temperature Zone:
USDA: 9b-11

Frost Tolerance: Hardy at least to 20F (-7C)

Sun Exposure: Full sun

Origin: Central Baja California (Mexico) and isolated spots in mainland Mexico

Growth Habits: Deciduous stem succulent tree, up to 50 feet (15 m)

Watering Needs: Moderate water when in leaf, little to no water when dormant.

Propagation: Seeds

The Boojum Tree on location in Baja California are an extremely bizarre spectacle. They have a conical shape with branchlets spread somewhat regularly around the trunk.

Blooming Habits:
The Boojum tree has bell-shaped cream to yellow tubular flowers borne in 16 inches panicles (40 cm), in late summer, on trees that are taller than 6 feet (1.8 m)

Fruiting Habits:

The Idria columnaris is propagated by seeds. The seedlings don't go dormant for a couple of year, they need to be protected against cold and drought. They still grow excessively slowly.

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Desert-Tropicals is dedicated to provide gardening advice, gardening ideas, and information about flower of all kind for landscape and collections. We try to check carefully the identification of the plants on the illustrations as well as the other information from the page, but occasionally errors do occur. if you notice anything that needs to be changed please contact us. Thanks.

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