Welcome to our guide to hoya krohniana care and propagation. The key to hoya krohniana care is to keep it in an orchid bark based soil mix and ensure you don’t overwater them.
Hoya Krohniana Care Summary
|Light needs:||Bright indirect sunlight.|
|Watering needs:||Check the soil once a week and water it when dry.|
|Fertilizer:||A well diluted balanced feed once a month in spring and summer.|
|Soil:||A mix of equal parts soil, perlite and orchid bark.|
|Where to buy:||Try our list of Rare Plant Shops.|
|Common issues:||Overwatering and root rot.|
The hoya krohniana is known for it’s small leaves with light silvery green flecked leaves. It is native to the Philippines, and makes a great houseplant in most climates, it is an easy to care for hoya.
Tip: we recommend Etsy for buying plants. Look for the best rated seller you can, and try to buy as close to your home as possible so the plant does not travel too far.
Bright indirect sunlight is ideal, they are naturally epiphytic and in the wild they live up in trees and get filtered sunlight through the tree canopy. They do well in an East facing window.
How Often to Water A Hoya Krohniana
Check the soil once a week and water it when dried out. Hoyas should not be allowed to sit in soggy soil, so make sure you empty out any water left in the saucer after watering. If in doubt leave them a few days and check again, do not over water these!
Use a well diluted balanced feed once a month in spring and summer. It will encourage quicker growth. Be careful not to burn the plant with too strong fertilizer.
A mix of equal parts soil, perlite and orchid bark. They must not sit in heavy waterlogged soil, they grow in bark in trees naturally so wet soil will cause root rot easily as they’re not used to it. For more on hoya soil (what to buy and how to make your own) see our guide here: Hoya Soil.
When To Repot
Hoyas do not mind being a little bit pot bound and having crowded roots, so check it once a year in spring and repot it only if it is getting really crowded.
Tip: grow them in terracotta to help with drainage, especially if you are an ‘over-waterer’!
Hoya Krohniana Humidity
60% humidity or more is best. They do ok in drier climates, but will do best with high humidity. I would get humidity meter and monitor it.
15-28°C (59-82°F) is a good range, they will stand some colder temperatures in winter though, try to keep them above 5°C (41°F).
How To Propagate Hoya Krohniana
You can root hoya krohniana in water, just take a cutting with a few nodes on it and keep the leaves on the top nodes but strip them off the lower ones. Put the cutting in a jar of water so that the naked nodes are under the surface of the water and leaves are above. Keep it humid, warm and in indirect sunlight and it should root over the next month or two. Once it has rooted well pot it up into a hoya mix.
Hoya Krohniana USDA Zone
Zones 10-12, they are best indoors in most places, at least for the summer.
Is It Toxic to Cats?
Hoya are not toxic to cats or dogs.
Hoya Krohniana Vs Lacunosa
The flowers and leaves are similar on these two hoyas, making them difficult to tell the difference between, but the Krohniana’s leaves are slightly more heart-shaped, where as the Lacunosa ha more oval leaves.
For more on hoyas see our hoya category with all our hoya care guides.
Hoya Krohniana Vs Curtisii
The curtisii has longer points to it’s leaves. For more on the Curtisii, see our guide Hoya Curtisii.
Hoya Krohniana Types
There are a few types including:
‘Eskimo’ which has been renamed ‘Splash’, with flecked variegation.
‘Silver’ which has a more silvery coloring.
Where To Buy
Try our list of Rare Plant Shops.
Hoya Krohniana FAQs and Common Problems
Overwatering and root rot is the biggest killer of hoyas. They need a dry chunky, mix with orchid bark so that the roots do not sit in soggy soil.
Buy: we recommend a digital thermometer hygrometer (amazon affiliate link) to measure humidity.