Hoya plants are also referred to as wax plants, wax flowers, or wax vines due to their waxy foliage and porcelain-like blooms. When cut, clear or milky sap oozes out. While gardening enthusiasts might marvel at the variety of blooms that the different varieties or cultivars offer, some of the varieties also produce ornate leaves. For instance, Hoya kerrii, which is called the Sweetheart Plant or Sweetheart Hoya, is popular due to its heart-shaped leaves.
✦ Growth Habit: Vine (climbing, trailing), shrubs
✦ Other Names: Wax plant, wax flower
✦ Native to: India, China, Thailand, Malaysia, Indonesia, Philippines, Polynesia, New Guinea, and Australia
✦ USDA Hardiness Zone: 10-12
✦ Light Requirement: Sun in the morning hours and bright, indirect light for the rest of the day
✦ Watering: Average; avoid excessive watering
✦ Flowers: Star-shaped flowers that grow in clusters
✦ Flowering Season: Throughout the summer
✦ Colors: White, pink, cream, yellow, orange, etc.
✦ Foliage Color: Green
✦ Other Characteristics: Some species might be toxic to livestock