Princess Flower - Tibouchina Urvilleana

Overview:

A native of Brazil, princess flower (Tibouchina urvilleana) is a glorious addition to tropical and sub-tropical gardens. Its large purple flowers and soft hairy leaves add interest and a burst of color to any landscape. It can also can be used as an indoor container plant in cooler regions, if full light and warmth is provided. Though it is usually a shrub here, it sometimes becomes large enough to form a small ornamental tree.

Latin Name:

Tibouchina urvilleana

Common Names:

Princess flower, glory bush, purple glory bush, lasiandra

USDA Hardiness Zones:

Zones 9-11. Can be grown in 8, but winter frost will cause it to die back until warmer temperatures return.

Size:

10-20 feet at mature size; can be pruned to be more compact.

Exposure:

Plant in full sun, though it can tolerate some afternoon shade, especially in the hottest zones.

Foliage/ Flowers:

Leaves are 2-6” in length and 1-1.5” wide, covered in soft hair and often tipped with red around the edges.

Flowers are 3-5” wide and a deep, vibrant purple. Princess flower can produce blooms year-round.

Design Tips:

Use as a specimen plant or for borders and foundations.

The large, vibrant purple flowers and soft, hairy leaves work well in sensory gardens.

Growing Tips:

Grow in rich fertile soil that is well draining. Soil is best if it is slightly acidic. Fertilize after each time it blooms.

Propagate using softwood cuttings.

Protect against frost and strong winds.

Maintenance/Pruning:

Prune to maintain a rounded shape. Pinch new growth to encourage branch formation. Prune lightly after blooming.

Can be pruned to form a standard.

Pests & Diseases:

Occasionally scale, nematodes, and geranium budworm. Mushroom root-rot can occur if over-watered.