If you are a sucker for goth foliage, Hoya Krohniana 'Black Leaves' is the right pick for you! This rare wax plant has cute, heart-shaped leaves that are a dark green to almost black with a brownish hue. This houseplant is a rare find no Hoya lover will want to miss out on!
Native to the Philippines, Hoya Krohniana can produce upright umbels of white, fuzzy flowers with a sweet fragrance that gets stronger at night. It is a perfect plant for a hanging basket in front of a sunny window!
Hoya Krohniana 'Super Silver' can bloom several times a year if grown in the right conditions. Place your plant in a spot where it gets a lot of light. Don't repot it because the stress of being root-bound encourages Hoya to bloom and fertilize it regularly. Also, pruning it in late winter will allow it to bush out and make it more likely for it to produce flowers.
Like a lot of wax plants, Hoya Krohniana 'Super Silver'is very kind to its owners! It requires less frequent watering and attention than most tropical indoor plants. It does not like having wet feet, so keep it in a well-draining potting mix, preferably a Hoya specific mix. Give them a warm, bright and medium-humidity environment and your Hoya will give your years of love in return!
Published in 2009,Hoya Krohniana was known at first as Hoya lacunosa (heart leaf), but later it got its own name after botanist Philip Krohn.
Many people swear that all Hoyas are the easiest to care for houseplants! They make for excellent houseplants as they can withstand a fair share of neglect.
If you're into Hoyas (and who isn't?!) then you should also see Hoya Australis Tricolor, Hoya Carnosa,Hoya Kerii or Hoya Calistophylla.
For more detailed care tips please go here.
Size
This plant comes in a 12cm nursery pot and is around 15 cm tall.
An example picture gives a trustworthy image of the plant with good care. The plant at the example picture is not the plant that will be delivered. This is an example, so variations are possible. The eventually delivered plant may differ in for example size, number of flower branches, etc.
For more detailed Hoya care tips please go here.
Watering
Be sure to water your Hoya thoroughly, so the entire soil becomes wet. They like to dry out more than most plants, so only water them again once the soil is thoroughly dry. If they do not dry out between waterings, they will rot quite easily.
Soil
Hoyas will appreciate a lightweight and very airy potting mix. A mixture of substrate, perlite and bark, such as it can also be found in our Aroid Potting Mix, will work great for most Hoyas. Epiphytic Hoyas in particular will also do well in spaghnum moss.
Hoyas can also be grown in semi-hydro substrates, such as Leca or PON or our Alocasia Mix, since they are particularly aerate.
Light
The more succulent varieties with fleshy leaves, such as Hoya Kerrii or Hoya Calistophylla, can withstand full sun, so they will do great in a South-facing window or right under a small grow light. Meanwhile, thinner-leaved Hoyas, such as Hoya Bella or Hoya Krohniana, will appreciate medium to bright indirect light.
Certain Hoya varieties might begin to redden their leaves due to sun stress, such as Hoya Wayetii Tricolor, for instance. This can be beautiful, but you have to be careful not to overdo it light-wise or it will fully burn the plant and permanently damage the chlorophyll in the leaves in the process.
Humidity
Most Hoyas will do great in moderate humidity of 40-60%. Especially the more thick-leaved Hoya are not too finicky in terms of humidity, but most will thrive and grow faster if given a bit more.
Some of the thinner-leaved varieties might require higher humidity of 60-80% to thrive. They will do especially well in a greenhouse or terrarium environment.
Repotting
Hoyas like to be rootbound, so we recommend that you do not repot your Hoya all too often. Refreshing their substrate every two to three years in order to give them better, nutrient-retaining soil is enough. If they are very rootbound, you can give them a bigger pot when you refresh the substrate.
Flowering
Hoyas won’t flower unless it is given the right care and conditions. Light is the most important factor in getting your Hoya to bloom. It will need a location with bright, indirect light, sheltered from direct sun rays. Fertilising your Hoya regularly may encourage the plant to produce flower buds as well.
Toxicity
Hoyas are NOT toxic to humans or animals when ingested.
Delivery costs are based on the total weight of your order and are automatically calculated in the cart. Simplyplace the products you want to buy into your card and click on “checkout” to get a quote for shipping.
We offer free delivery in Germany for orders above 60€ and EU above 100€.
It takes 1 to 2 working days for us to process your order. Once it is shipped, the following times apply:
| Countries | Shipping times (working days) |
| Austria | 3 to 5 |
| Belgium | 1 to 2 |
| Bulgaria | 4 to 6 |
| Croatia | 5 to 8 |
| Cyprus | 4 to 6 |
| Czech Republic | 3 to 6 |
| Denmark | 2 to 3 |
| Estonia | 4 to 6 |
| Finland | 3 to 6 |
| France | 2 to 4 |
| Germany | 2 to 3 |
| Greece | 3 to 6 |
| Hungary | 3 to 6 |
| Ireland | 2 to 4 |
| Italy | 2 to 5 |
| Latvia | 3 to 6 |
| Lithuania | 4 to 6 |
| Luxembourg | 1 to 2 |
| Malta | 3 to 6 |
| Netherlands | 1 to 2 |
| Poland | 2 to 4 |
| Portugal | 3 to 5 |
| Romania | 3 to 6 |
| Slovakia | 3 to 6 |
| Slovenia | 2 to 4 |
| Spain | 3 to 5 |
| Sweden | 2 to 5 |
| Switzerland | 3 to 4 |
