The Jasminum sambac ‘Grand Duke of Tuscany’, or Arabian Tea Jasmine, is prized for its fragrant, double white blooms. These large, camellia-like flowers emit a sweet scent, making them a gardener’s favorite. Originating from tropical Asia, this cultivar adds elegance with its lush appearance, enhancing both indoor and outdoor spaces.
Growing Arabian Tea Jasmine
Light Requirements
Arabian Tea Jasmine thrives in ample sunlight, ideally receiving three to six hours daily for optimal growth and prolific flowering. In hotter climates, position the plant to receive morning sun and afternoon shade, protecting it from intense midday heat.
For indoor cultivation, a bright, sunny window is best. If natural light is insufficient, supplementary grow lights provide the necessary energy. Adequate light is important, as insufficient exposure can lead to leggy growth and reduced flower production.
Soil Preferences
Arabian Tea Jasmine flourishes in well-draining, humus-rich soils with good moisture retention. An ideal soil pH ranges from slightly acidic to neutral (4.9-7.5), with an optimal range of 5.5-6.0. Incorporating organic matter like compost enriches the soil and improves its structure.
For container plants, a well-draining potting mix is important to prevent water rot. A suitable blend includes potting mix, perlite, and compost or peat moss. Always choose a pot with drainage holes for proper water runoff.
Watering Needs
Consistent moisture is important for Arabian Tea Jasmine during growing and blooming seasons. Water deeply and regularly, allowing the top inch or two of soil to dry slightly before the next watering. This prevents yellowing leaves from underwatering and root rot from overwatering.
Always check soil moisture before watering. During cooler winter months, reduce watering frequency significantly, allowing the soil to dry out more between applications.
Temperature and Humidity
Arabian Tea Jasmine thrives in warm, humid environments. Ideal temperatures for robust growth and flowering range from 80-90°F (27-32°C) during the day and 70-80°F (21-27°C) at night. The plant is sensitive to frost and grows best in USDA hardiness zones 9 through 11.
For indoor plants, average room temperatures (65-75°F / 18-24°C) are suitable. Higher humidity promotes better growth and more blooms. Misting foliage or placing the plant near a humidifier increases ambient moisture.
Fertilizing
Arabian Tea Jasmine is a heavy feeder, especially during flowering. Begin fertilizing in spring as new growth emerges, monthly throughout the growing season.
A fertilizer with higher phosphorus, like 10-30-10, encourages more flowers. A balanced fertilizer like 10-10-10 supports overall plant health. For outdoor plants, use a slow-release granular fertilizer; indoor plants benefit from diluted liquid fertilizer applied after watering.
Pruning for Health and Shape
Regular pruning benefits Arabian Tea Jasmine for a fuller, bushier plant and more flowers. The best time to prune is after a blooming cycle to maintain shape and size.
Removing dead, diseased, or leggy branches improves air circulation and directs energy towards healthy new growth. It can be grown as a compact shrub or trained as a vine with support.
Harvesting and Using Arabian Tea Jasmine
When and How to Harvest
Arabian Tea Jasmine flowers are most fragrant when harvested in the early morning, as buds unfurl or open. Gently pluck individual flowers or small clusters from stems without damaging the plant or buds.
Regular harvesting encourages more flowers. Collect in a breathable container (e.g., basket) to prevent crushing and allow air circulation. Prompt use preserves aroma and quality.
Preparing Jasmine Tea
Arabian Tea Jasmine blossoms are used for aromatic jasmine tea. Infuse fresh flowers directly into hot water: Place a handful of fresh blossoms into a teapot, pour hot (not boiling) water over them, and steep for a few minutes.
For traditional tea, dry flowers and blend with green or black tea leaves. To dry, spread flowers in a single layer on a clean screen or paper in a well-ventilated area away from direct sunlight until brittle. Once dry, store in an airtight container and add to your preferred tea blend for a delicate, floral flavor.
Other Fragrant Uses
Beyond tea, fragrant Arabian Tea Jasmine flowers have other aromatic uses. Their scent makes them excellent for homemade potpourri; dry flowers and mix with other dried botanicals and spices.
Blossoms can also infuse oils for homemade soaps, lotions, or massage oils. Many cultures use fresh flowers for leis, garlands, or as natural air fresheners.
Propagating Arabian Tea Jasmine
Stem Cuttings
Stem cuttings are a common and effective propagation method for Arabian Tea Jasmine. Select healthy, non-flowering, semi-hardwood stems, four to six inches long. Cut just below a leaf node, then remove leaves from the bottom two inches to expose nodes.
Dip the cut end into a rooting hormone to enhance root development. Plant cuttings in a well-draining rooting medium (e.g., perlite and peat moss mix), burying at least one node. Maintain consistent moisture, warmth, and bright, indirect light, often by covering with a plastic dome or bag for humidity, until roots form, which can take several weeks.
Layering
Layering offers another viable propagation method for Arabian Tea Jasmine, often more successful than cuttings as the new plant remains attached to the parent. Bend a low-hanging, flexible stem to the ground. Gently wound a one-inch section of the stem by scraping away outer bark.
Bury the wounded section two to three inches deep, ensuring the branch tip remains exposed. Secure the buried section with a U-shaped wire or heavy object. Keep soil consistently moist; roots should develop over several months, then sever the new plant from the parent.
Common Problems and Solutions
Arabian Tea Jasmine is robust, but it can encounter common issues. Pests like spider mites, aphids, and mealybugs infest the plant. Regular inspection helps identify pests early; a strong water spray can dislodge them, or use insecticidal soap for persistent infestations.
Environmental stressors can lead to problems. Yellowing leaves indicate overwatering (root rot) or nutrient deficiencies. Well-draining soil, adjusted watering, and regular fertilization mitigate these issues. Lack of blooms points to insufficient light; relocate to a brighter spot or supplement with grow lights.