Shrub
Princess Flower
Tibouchina urvilleana
Monrovia® varieties
Varieties We Carry
DwarfTibouchina urvilleanaVariegatedTibouchina urvilleanaStandardTibouchina urvilleanaMonrovia
Sizes & Pricing
#1MonroviaFrom$24.95
#2MonroviaFrom$49.95
3 galFrom$14.95
#5MonroviaFrom$79.95
Fresh this week. Last restocked Jun 25.
LightFull Sun
WaterModerate
Mature size10-15 feet × 10-15 feet
About Princess Flower
Princess Flower (Tibouchina urvilleana) is a tropical Brazilian shrub growing 10–15 feet tall, celebrated for its striking royal-purple blooms produced summer through fall. The velvety, prominently-veined dark green leaves add bold texture. Hardy in zone 9b; requires training and regular pruning to maintain an attractive form in NE Florida landscapes. UF/IFAS flags this species as potentially invasive — site with care. Starting at $14.95.
Plant details
- Bloom Season
- Summer, Fall
- Flower Color
- Purple
- Growth Rate
- Moderate
- Foliage
- Evergreen
- Soil
- Loam, Acidic, Well-drained
Best planting months
Recommended forZone 9b · St. Augustine, FL
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This monthGood windowOther months
Seasonal care
Good planting window.
Bloom season.
Bloom season. Ideal planting window.
Retains foliage through winter.
Care essentials
Light
Plant in full sun with a minimum of 5 hours direct sunlight for best bloom production. In NE Florida, a south- or west-facing location maximizes flowering.
Water
Water regularly to keep soil evenly moist; Princess Flower does not tolerate drought or prolonged waterlogging. In NE Florida, supplement irrigation during dry spells and ensure good drainage to prevent root rot.
Soil & Fertilizer
Grow in well-drained, slightly acidic soil. Amend sandy NE Florida soils with compost to improve moisture retention. Fertilize in spring and summer with an acidifying slow-release fertilizer; prune lightly after bloom cycles to maintain shape and stimulate repeat flowering. Note: UF/IFAS considers Tibouchina urvilleana potentially invasive — site responsibly.
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Common questions
Is Princess Flower a good plant for St. Augustine?
Princess Flower is a shrub for Zone 9b coastal Florida gardens, reaching 10-15 feet × 10-15 feet.
Care information verified from
Last reviewed February 2026. Our care guidance comes from trusted horticulture sources and decades of helping St. Augustine gardeners. Conditions here can vary dramatically from one area to the next, so come ask us and we'll tailor it to your yard.