Jasmine Grand Duke

Plant Overview

Jasmine Grand Duke of Tuscany (Jasminum sambac ‘Grand Duke of Tuscany’) is a beautiful tropical evergreen shrub prized for its exceptionally fragrant, double white flowers and lush green foliage. Its layered blooms resemble miniature roses or gardenias and release a rich, sweet fragrance. Well suited to Florida's warm climate, this elegant jasmine flowers throughout the warmer months, with extended blooming possible in frost-free locations. Its compact, bushy growth makes it an excellent choice for fragrant gardens, landscape borders, patios, entryways, and decorative containers.

Key Plant Characteristics

• Botanical Name: Jasminum sambac ‘Grand Duke of Tuscany’

• Common Names: Grand Duke of Tuscany Jasmine, Arabian Jasmine

• Plant Type: Tropical evergreen perennial shrub

• Mature Height: Approximately 3–5 feet

• Mature Spread: Approximately 2–5 feet

• Growth Rate: Slow to moderate

• Growth Habit: Upright, bushy, and compact

• Foliage: Glossy, deep green leaves

• Flowers: Highly fragrant, double white blooms resembling miniature roses

• Blooming Season: Spring through fall, potentially longer in frost-free areas

• USDA Hardiness Zones: 9–11, with protection needed in colder areas

• Florida Growing Zones: Best suited to Central and South Florida, particularly Zones 9b–11

• Sunlight Requirements: Full sun to partial shade

• Special Features: Exceptional fragrance, evergreen foliage, and excellent container performance

Plant Care Guide

• Sunlight: Provide full sun to partial shade for healthy growth and abundant flowers. Afternoon shade can be beneficial during intense Florida heat.

• Watering: Water regularly during establishment. Keep soil moderately moist, allowing the upper layer to dry slightly between waterings.

• Soil: Prefers fertile, organically rich, well-draining soil. Avoid waterlogged conditions.

• Fertilizing: Apply a balanced fertilizer during the active growing season to encourage healthy foliage and flowering.

• Pruning: Lightly prune after flowering to maintain shape and encourage fuller branching.

• Cold Protection: Sensitive to frost and freezing temperatures. Protect outdoor plants during cold snaps or move containers to sheltered locations.

• Pests & Diseases: Monitor for aphids, mealybugs, scale insects, and spider mites. Maintain adequate airflow and drainage.

• Additional Care Tips: Plant near patios, walkways, or seating areas where its fragrance can be enjoyed. Container growing is ideal where winter protection is necessary.