Hoya obscura explained

Hoya obscura is a fast-growing hoya from the Philippines.^[1] Characterized by medium-sized veined leaves that range from deep green when grown in shade, to a deep reddish color when grown in sunlight. This hoya is very easy to grow.

Description

• Growing habit: Viny and compact, leaves fairly close together along new shoots. Very fast grower in optimal conditions. Extremely floriferous.
• Sap color: milky.
• Leaf size: 2 cm to 10 cm.^[2]
• Epiphytic: Epiphytic to semi-epiphytic in the wild. Readily adapts to pot culture.
• Fragrance: Intense and pleasant, remarkably like a buttered cinnamon roll for the plant pictured. Wafts a considerable distance. Many people have likened the fragrance to Froot Loops cereal.
• Soil conditions: Must be moist but well-drained and airy. The specimen pictured is generally allowed to dry completely between waterings, and is rootbound in a 3-inch terra cotta pot.
• Outdoor zone: At least Zone 10, possibly cooler.

Notes and References

1. Web site: Hoya obscura Elmer ex C.M.Burton . 2023-11-23 . Plants of the World Online.
2. Book: Leaflets of Philippine Botany . Manila, Oriental Printing Co . 1938 . 10 . 3586–3587 . 1755664.