Princess Flower, Glory Bush

tibouchina urvilleana

Also known as: ["Glory Bush","Lavender Gown","Violet Showers"]

Family: Melastomataceae Genus: Tibouchina Category: Flowers

Overview

A striking evergreen shrub native to Brazil, known for its large, lavender-purple flowers and glossy, dark green leaves.

Benefits & Perks

["long-flowering","fragrant flowers","wildlife attractant (bees, butterflies, birds)","aesthetic foliage"]

Botanical Classification

Phylum: Magnoliophyta
Class: Magnoliopsida
Order: Myrtales
Family: Melastomataceae
Genus: Tibouchina
Botanical Name: Tibouchina urvilleana

Plant Characteristics

Basic Information
  • Category: Flowers
  • Suitable Location: indoor pot near bright window or outdoor garden bed in sheltered, sunny spot
  • Suitable For:
    Collectors & Enthusiasts Outdoor Landscapers Fragrance Lovers Wildlife Supporters
  • Is Weed: No
  • Allergenicity: low
Environmental Needs
  • Climate: {"temperatureRange":"15–30°C"}
  • Hardiness: {"zones":"9–11"}
  • Misting: every 2–3 days to maintain humidity, especially in dry climates
  • Drainage: Fast-draining to prevent root rot.
  • Soil Type: Well-draining, slightly acidic potting mix with organic matter.
Maintenance Level
  • Maintenance Level: moderate
  • Toughness Level: moderate
  • Pruning Frequency: Light pruning after flowering; major shaping in late winter/early spring.
  • Pruning Intensity: Moderate; remove up to one-third of growth for shaping.
Care Details

Ideal Sunlight Coverage:
Bright indirect light for 6–8 hours daily; can tolerate morning sun but protect from harsh afternoon rays.

Sunlight Tolerance Tips:
Acclimate gradually to direct sun; shield from intense midday sun; adjust placement based on indoor/outdoor conditions.

Warning Signs: Yellowing leaves, root rot, or stunted growth indicate poor soil or drainage issues.

Care Requirements

Care Difficulty
moderate

moderate

Sunlight

full sun to partial shade

Rotate plant for even growth; use sheer curtains to filter intense light; avoid direct afternoon sun.

Watering

every 5–7 days during active growth, reduce in winter

Maintain consistent moisture without waterlogging; ensure good drainage; adjust based on season and growth stage.

Soil

well-draining, fertile, slightly acidic potting mix

pH: 5.5–6.5 (slightly acidic).

Ensure soil dries slightly between waterings; avoid heavy clay soils; amend with organic matter for fertility.

Temperature

Prefers 65–80°F (18–27°C); thrives in warm, humid conditions; sensitive to cold drafts.

Avoid sudden temperature changes; maintain consistent warmth; protect from cold drafts.

Fertilizing

every 2 weeks during growing season, monthly in spring and fall, none in winter

Fertilize after watering to prevent root burn; flush soil occasionally to prevent salt buildup; avoid over-fertilizing.

Propagation

Methods

Stem cuttings in spring or early summer.

Step-by-Step Propagation Guide
  1. Take 4–6 inch cuttings.
  2. Remove lower leaves.
  3. Dip in hormone.
  4. Plant in medium.
  5. Maintain humidity.

Best Time: Spring or early summer when plant is actively growing.

Environment

High humidity (70–90%), warm temperatures (70–75°F), indirect light.

Medium

Well-draining mix of peat, perlite, and sand.

Hormone

Recommended to use rooting hormone for faster root development.

Timeline

Roots develop in 4–6 weeks; new growth appears in 2–3 months.

Tools Needed

Pruning shears, rooting hormone, small pots, misting spray bottle.

Quick Tips

Use healthy, non-flowering stems; maintain consistent moisture; provide bottom heat for faster rooting.

Pruning & Repotting

Pruning Guide
Method

Pinch back tips for bushiness; cut just above a leaf node or bud.

Pruning Plan

Prune to maintain shape, encourage bushiness, and remove dead/damaged growth.

Tools

Clean, sharp pruning shears, gloves.

Checklist

Sanitize tools; prune dead/damaged growth; shape as desired; clean up debris.

Repotting Guide
Best Season

Early spring before new growth begins.

Pot Size

One size larger pot (1–2 inches wider in diameter).

Method

Remove plant gently; trim roots if needed; place in new pot with fresh soil; water thoroughly.

Suggestions

Repot every 2–3 years or when roots fill the pot; beneficial for growth and flowering.

Checklist

Check root bound status; prepare new pot; use fresh soil; water after repotting.

Advanced Care Tips

Watering Mastery
Watering Checklist

Check soil moisture; water deeply; ensure drainage; adjust for season.

How to Apply Water Properly

Water deeply at the root zone until water drains from the bottom; avoid wetting foliage; water in the morning for optimal absorption.

Pro Tip: Use room temperature water to avoid shocking the roots.
Watering Schedule Tips

Water thoroughly when the top inch of soil feels dry; reduce frequency in winter to prevent root rot.

Soil Improvement

Add perlite or sand for drainage; incorporate peat moss for acidity; use orchid bark for aeration.

Temperature Stress Management
Signs of Temperature Issues

Leaf drop, wilting, or yellowing in cold; scorching or stunted growth in excessive heat.

Cold Stress

Growth slows or halts; leaves may turn brown or drop; risk of frost damage below 50°F (10°C).

Solution: Move to a warmer location; provide a heat source if needed; protect from drafts.

Hot Stress

Wilting, leaf scorch, or reduced flowering; may drop buds in extreme heat.

Solution: Increase humidity; provide shade; water more frequently but avoid waterlogging.

Fertilizing Guide
Fertilizing Checklist

Check season; dilute fertilizer; apply to moist soil; flush periodically.

Fertilizing Method

Use balanced liquid fertilizer diluted to half strength every 2–4 weeks during growing season (spring/summer); reduce or stop in fall/winter.

Common Problems & Solutions

Yellow leaves in Tibouchina urvilleana may indicate nutrient deficiencies, overwatering, or pest infestations, affecting photosynthesis and overall plant health.

Wilting in Tibouchina urvilleana can result from water stress, either due to drought or overwatering, disrupting nutrient uptake and potentially leading to plant death.

Leaf spots on Tibouchina urvilleana are often caused by fungal or bacterial infections, which can reduce photosynthetic efficiency and lead to defoliation if severe.

Rotting, particularly root rot, can occur in Tibouchina urvilleana when soil is excessively moist, leading to decay of root systems and eventual plant decline.

Toxicity Warning

Cats
Slightly Toxic

Cats may experience mild gastrointestinal upset if they ingest parts of Tibouchina urvilleana. The plant is not highly toxic to cats but can cause discomfort.

⚠️ Symptoms:
vomiting diarrhea depression
🌿 Toxic Parts:
leaves flowers seeds
⚡ Toxic If:

if eaten

Keep plants away from cats. Seek veterinary advice if ingestion occurs.
Dogs
Slightly Toxic

In dogs, ingestion of Tibouchina urvilleana can lead to mild gastrointestinal upset. The plant is not considered highly toxic but can cause discomfort if consumed in significant quantities.

⚠️ Symptoms:
vomiting diarrhea lethargy
🌿 Toxic Parts:
leaves flowers seeds
⚡ Toxic If:

if eaten

Monitor pets closely. Contact a veterinarian if ingestion is suspected.
Humans
Slightly Toxic

Tibouchina urvilleana contains compounds that can cause mild gastrointestinal distress when ingested. The plant's effects are generally not severe but can lead to discomfort in sensitive individuals.

⚠️ Symptoms:
nausea vomiting diarrhea
🌿 Toxic Parts:
leaves flowers seeds
⚡ Toxic If:

if eaten

Avoid ingestion. Keep out of reach of children and pets.
Important: Keep this plant out of reach of children and pets. If ingestion occurs, contact poison control or veterinary services immediately.

Frequently Asked Questions

Q: How often should Tibouchina urvilleana be watered?

A: Water regularly, keeping the soil consistently moist but not waterlogged, especially during flowering periods.

Q: Does Tibouchina urvilleana require full sun?

A: Yes, it thrives in full sun to partial shade, requiring at least 6 hours of sunlight daily for optimal flowering.

Q: Can Tibouchina urvilleana be grown indoors?

A: It is primarily an outdoor plant, but can be grown indoors in a very bright, sunny location with high humidity and ample space.

Quick Reference
Family: Melastomataceae
Care: moderate
Light: full sun to partial shade
Water: every 5–7 days during active
Suitable For: ["collectors/enthusiasts","outdoor landscapers","fragrance lovers","wildlife supporters (attracts bees, butterflies, birds)"]
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