Hoya SR 2007-13, also known as Hoya sp. Loei, originated from Thailand’s Loei Province. Its “SR” designation likely refers to collector Surisa Somadee, who first collected it in 2007. This Hoya is sought after for its unique foliage and fragrant, though sometimes elusive, blooms. It is considered an easy grower, suitable for both beginners and experienced collectors.
Unique Characteristics of Hoya SR 2007-13
Hoya SR 2007-13 displays striking foliage with long, slender leaves, up to 14 inches. They are typically deep green, often adorned with shimmering silver splash variegation. Prominent light-colored veins and occasional flecks give the thick, paddle-shaped leaves a rugged yet refined appearance.
When it blooms, Hoya SR 2007-13 produces delicate clusters of small, star-shaped, waxy flowers. These incredibly fragrant blooms typically appear in soft pink to peach tones, often with a white, yellow, or orange center. Though rare and potentially taking several years to appear, their strong fragrance is highly anticipated. This Hoya exhibits a vining and climbing growth habit, suitable for trellises, moss poles, or natural trailing.
Comprehensive Care for Hoya SR 2007-13
Light Requirements
Hoya SR 2007-13 thrives in bright, indirect light, mimicking a dense forest environment. Avoid prolonged intense afternoon sun, which can scorch leaves. Sufficient light encourages blooming and healthy foliage. Too much light causes bleached or burned leaves, while too little leads to slowed growth and less vibrant foliage. A bright, filtered setting is best for optimal growth and flowering.
Watering Needs
Allow the soil to dry out almost completely between waterings, as the Hoya’s thick, fleshy leaves store water. Overwatering is a common problem and can lead to root rot. Water thoroughly, ensuring excess water drains freely. Reduce watering frequency during winter months when growth slows. Yellowing or browning leaves can indicate improper watering, so check soil moisture.
Humidity and Temperature
Hoya SR 2007-13 prefers moderate to high humidity, ideally above 40%. While it tolerates drier conditions, misting, pebble trays, or humidifiers can increase ambient humidity. Good air circulation is important. This Hoya thrives in temperatures between 65-85°F (18-29°C). It does not tolerate cold well; protect it from drafts and sudden temperature fluctuations, especially in cooler months. The lowest tolerable temperature is around 60°F (15°C).
Potting Mix and Repotting
An ideal potting mix for Hoya SR 2007-13 is well-draining and airy. A good blend includes orchid bark, perlite, and potting soil, or coco mulch, peat moss, and perlite. This prevents water retention and root rot. Hoyas prefer to be somewhat root-bound, which encourages blooming.
Repot only when the plant has significantly outgrown its pot, typically every two years or when roots fill the pot. Choose a pot only 1-2 inches larger in diameter. After repotting, water thoroughly, then allow the mix to dry almost completely before the next watering to prevent root rot.
Fertilization
During its active growing season (spring and summer), Hoya SR 2007-13 benefits from regular fertilization. Apply a balanced, water-soluble fertilizer diluted to half-strength every 3-4 weeks. Some growers use a low-salt organic fertilizer more frequently. Reduce fertilization in autumn and stop completely during winter dormancy. Yellowing leaves or stunted growth may indicate a need for fertilizer. Water the plant slightly before applying fertilizer to prevent root burn.
Propagating Hoya SR 2007-13
Propagating Hoya SR 2007-13 is most effective through stem cuttings. Select a healthy 4-6 inch cutting with at least one or two leaf nodes, removing leaves from the bottom. Cuttings can be rooted in water or a substrate like sphagnum moss, perlite, or a well-draining soil mix. Create a humid environment by placing the cutting in a transparent container or sealed bag with moist substrate. Warmth and consistent humidity promote rooting, which typically begins within a few weeks. Transplant once roots are several inches long.
Common Challenges and Solutions
Hoya SR 2007-13 can experience issues such as leaf yellowing or dropping, often due to improper watering or incorrect light exposure. Adjusting watering to allow soil to dry and providing bright, indirect light can resolve these. Lack of blooms is common, as this Hoya is a shy bloomer that can take several years to flower. Ensure sufficient bright, indirect light and appropriate fertilization during the growing season; root-bound conditions also encourage flowering.
Pests like mealybugs, aphids, and scale insects can cause discoloration and stunted growth. Early detection is crucial; use a strong water jet, neem oil, or insecticidal soaps for control. Fungal diseases, such as root rot, typically result from overwatering and poor ventilation. Improve drainage and allow soil to dry between waterings to prevent these issues.