Hoya krohniana is part of the Apocynaceae family and its native range is the Philippines. Leaves are small, cordate (heart-shaped) and glabrous, they are arranged opposite with pinnate nervation. This variety has dark, olive-black leaves, particularly when new growth is sunstressed. I suspect flowers are revolute (curved, folded backwards) cream coloured and fuzzy like other krohniana blooms.
Genus name is new Latin, named after Thomas Hoy ( c. 1750– c. 1821), English gardener. Specific epithet honors botanist, Philip Krohn.
Light: Bright indirect light, meaning the plant sees the sun for 0-4 hours per day - this could be through trees or a translucent curtain, it’s important for the plant to see the sky in order to thrive. More hours of light are thought to encourage flowering.
Water: Given adequate light, allow the mix to dry out a little. If your Hoya is potted in a chunky, fast draining mix, you may need to water more frequently.
Potting mix: A chunky well-draining mix composed of coco coir, perlite or vermiculite, orchid bark, worm castings and some horticultural charcoal. I also recommend potting Hoya in coco chips.
Fertilising: Feed your plant every few waterings during the growing season or when you observe active growth. You can dilute fertiliser to half the recommended amount but never add more.
Humidity: Hoya would prefer higher humidity, between 60-80% but do well to adapt to average home humidity. You can increase humidity by placing the
plant on a watered pebble tray, placing under a cloche or using a humidifier.
For further information about Hoya, check out our blog.
Hoya aren’t considered toxic, however, they may make your pet or child vomit if ingested, keep out of reach just to be safe.