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Hoya krohniana 'Black Leaves' Ø9-Ø12cm
![Hoya krohniana 'Black Leaves' — rare Philippine species with small elongated heart-shaped leaves of extremely dark gothic green-black color with coppery reflections in strong light [1]](https://gomagcdn.ro/domains2/eufloria.ro/files/product/original/hoya-krohniana-black-leaves-492754.png "Hoya krohniana 'Black Leaves' — rare Philippine species with small elongated heart-shaped leaves of extremely dark gothic green-black color with coppery reflections in strong light [1]")
Hoya krohniana 'Black Leaves' is a rare species from the Philippines (Apocynaceae family), selected for extreme pigmentation — small elongated heart-shaped leaves, gothic green-black, nearly the darkest pigmentation among Hoyas. Cream-white star-shaped flowers with pink-purple center, dramatic contrast with foliage.
Approx height (including pot): 15 cm
Flowering state: No flowers
Country of origin: Netherlands
- Description
- Characteristics
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- FAQ
🌿 Hoya krohniana 'Black Leaves' — Hoya with Gothic Foliage, Dark as Night
Hoya krohniana 'Black Leaves' is a rare and spectacular species, selected for its unusually dark foliage — green-black, almost gothic, with discrete veins glimpsed in strong light. This 'Black Leaves' variant presents much more intense pigmentation than the typical form of the species, creating dramatic visual impact in any Hoya collection.
Leaves are elongated heart-shaped, with medium dimensions (3-6 cm), thick and waxy, arranged in opposite pairs on delicate vining stems. The distinctive color — dark green-black — is stable, maturing dramatically as the plant grows. Under bright indirect light, edges may develop coppery or purple reflections.
Offered in two sizes: Ø9cm (young-mature) and Ø12cm (mature with developed stems). Collector plant for Hoya enthusiasts who appreciate rarity and gothic aesthetics.
🌍 Origin and Botanical History
Hoya krohniana is native to the Philippines. Species scientifically described in 2005 by Kloppenburg & Siar. The 'Black Leaves' cultivar is a horticultural selection for extreme pigmentation. Apocynaceae family.
🌱 Gothic Foliage
Leaves 3-6 cm, elongated heart-shaped, thick, waxy. Dark green-black color — practically the darkest pigmentation among Hoyas. Smooth, slightly glossy texture. Stems are thin, delicate, arranged in cascades.
🌸 The Flowers
Spherical umbels of 15-25 small cream-white star-shaped flowers with pink-purple center. Delicate sweet fragrance. Dramatic contrast with dark foliage. Flower on mature plants (2-3 years).
🌱 Care
- Light: bright indirect (accentuates dark pigmentation).
- Temperature: 18-28°C.
- Watering: moderate; let substrate dry almost completely.
- Humidity: 50-70%.
- Substrate: airy, for epiphytes.
- Fertilization: every 3-4 weeks.
- Propagation: cuttings 2-3 nodes.
🌿 Non-toxic
Hoya genus non-toxic. Sap may cause minor irritation.
🌸 Why 'Black Leaves'
Extremely dark pigmentation (green-black) is rare among Hoyas — creates distinctive gothic look. Dramatic contrast with white flowers at blooming. Premium investment for rare Hoya collections.
🌱 How to Intensify Pigmentation
Bright indirect light accentuates leaf darkness. In shade, leaves may appear greener. Edges may develop coppery reflections in intense light — sign of optimal pigmentation.
🌱 Common Problems
Greener leaves: insufficient light. Burns: direct sun. Yellow leaves: overwatering.
Lungime: 30 cm
Greutate (kg): 0.25 Kg
Denumire: Hoya
Diametru: 9 cm
Cerințe lumină: Partial umbra
Tip plantă: Decorative
Utilizare: Interior
Tip suport: Ghiveci
Material Suport: Plastic
Is Hoya krohniana Black Leaves toxic to pets?
According to ASPCA, the Hoya genus is not listed as toxic to dogs, cats, or horses. Hoya krohniana Black Leaves is considered non-toxic. Ingestion may cause minor gastric discomfort in sensitive pets.
Why are the leaves so dark?
The dark, almost black colour is caused by a high concentration of anthocyanins in the leaves. This is a natural genetic trait of the Black Leaves variant. Bright indirect light and 1-2 hours of direct morning sun can intensify the colour.
How often should I water Hoya krohniana Black Leaves?
Water when the substrate has dried almost completely: every 7-10 days in summer and 14-21 days in winter. The succulent leaves store water, making the plant tolerant of short dry periods. Overwatering is the main cause of plant loss.
Does Hoya krohniana Black Leaves bloom?
Yes, mature plants (2-3 years) produce umbels of 15-20 small flowers (5-7 mm), white with pink centres, with a sweet fragrance more intense in the evening. Do not cut the peduncles after flowering — they will produce new flowers in subsequent seasons.
What experience level does Hoya krohniana Black Leaves require?
Recommended for intermediate-level collectors. It is more tolerant than many other rare Hoya species, but its slow growth and rarity make it better suited for those with experience caring for epiphytic plants. Requires aerated substrate, bright indirect light, and moderate watering.
Why are the leaves so dark?
'Black Leaves' is a cultivar specifically selected for extremely dark, almost gothic pigmentation. The darkest pigmentation among Hoyas. Intensifies under bright indirect light.
How do I maintain the dark color?
BRIGHT indirect light is the key. In shade, new leaves appear greener. Move close to a filtered window for maximum pigmentation. Edges with coppery reflections = sign of optimal light.
How to water?
Moderately. Let substrate dry almost completely between waterings. Every 7-10 days in summer, every 2-3 weeks in winter.
Is it toxic?
No. The Hoya genus is non-toxic according to ASPCA.
What do the flowers look like?
Umbels of 15-25 cream-white star-shaped flowers with pink-purple center. The white-black contrast with dark foliage is DRAMATIC. Delicate sweet fragrance. Flowers on mature plants.
Ai nevoie și de un ghiveci decorativ?
