Light
Very bright / some direct • ≈ 20–40k lux • Grow light target: DLI 12–18
Apocynaceae
Hoya krohniana 'Black Leaves'
VAT included · plus
Quick overview of our standard shipping rates, free-shipping thresholds and typical transit times for the countries we currently serve. Remote-area surcharges for certain postcodes are added automatically at checkout where applicable.
For full details, winter shipping rules and packaging information, please visit our Shipping & Delivery page.
| Country | Shipping | Free from | Transit time |
|---|---|---|---|
| Austria | € 12.95 | € 100 | 2–4 working days |
| Belgium | € 8.95 | € 100 | 1–2 working days |
| Bulgaria | € 21.95 | € 300 | 5–7 working days |
| Croatia | € 29.95 | € 300 | 5–7 working days |
| Cyprus (²) | € 39.95 | No free shipping | 5–7 working days |
| Czechia | € 16.95 | € 150 | 2–4 working days |
| Denmark (¹) | € 16.95 | € 150 | 2–4 working days |
| Estonia | € 18.95 | € 200 | 2–4 working days |
| Finland | € 29.95 | € 300 | 5–7 working days |
| France (¹) | € 12.95 | € 100 | 2–4 working days |
| Germany | € 8.95 | € 70 | 1–2 working days |
| Greece (¹²) | € 29.95 | € 300 | 5–7 working days |
| Hungary | € 18.95 | € 200 | 2–4 working days |
| Ireland | € 14.95 | € 150 | 2–4 working days |
| Italy (¹) | € 14.95 | € 150 | 2–4 working days |
| Latvia | € 18.95 | € 200 | 5–7 working days |
| Lithuania | € 18.95 | € 200 | 2–4 working days |
| Luxembourg | € 12.95 | € 100 | 1–2 working days |
| Malta (²) | € 39.95 | No free shipping | 5–7 working days |
| Netherlands | € 8.95 | € 100 | 1–2 working days |
| Norway (³) | € 21.95 | € 300 | 5–7 working days |
| Poland | € 12.95 | € 100 | 2–4 working days |
| Portugal (¹) | € 14.95 | € 150 | 2–4 working days |
| Romania | € 21.95 | € 300 | 5–7 working days |
| Slovakia | € 18.95 | € 200 | 5–7 working days |
| Slovenia | € 18.95 | € 200 | 5–7 working days |
| Spain (¹) | € 12.95 | € 100 | 2–4 working days |
| Sweden | € 18.95 | € 200 | 2–4 working days |
| Switzerland | € 29.95 | € 300 | 5–7 working days |
| United Kingdom (¹³) | € 18.95 | € 200 | 5–7 working days |
Notes
- ¹ Island / remote-area surcharge: added automatically at checkout for affected postcodes, including Sicily, Sardinia, Corsica, Faroe Islands, Azores, Madeira, Balearic Islands, selected Greek island postcodes, Scottish Highlands & islands, and Northern Ireland (BT1–71; BT74–82; BT86–88; BT92–97). Canary Islands: we currently do not ship there.
- ² Cyprus, Greece & Malta: delivery is possible, but courier reliability can vary; arrival times and plant condition cannot be guaranteed. The 28-day guarantee does not apply to plants shipped to these destinations due to unpredictable transit times.
-
³ United Kingdom: orders ship on Wednesdays only (order cut-off: Tuesdays, 12:00).
Import duties, taxes, and fees are payable by the customer (not included) — please check with your local customs authority for details.
All required phytosanitary paperwork is included.
For the UK, the 28-day guarantee does not apply to plants due to potential customs delays.
Norway: All required phytosanitary paperwork is included. For Norway, the 28-day guarantee does not apply to plants due to potential customs delays.
- Curated selection:
Every plant is hand‑picked for health and visual appeal, so you receive a strong, well‑established plant.
- Representative photos:
Product images show a typical plant of this variety. Natural differences in leaf number, shape or variegation are normal – your plant will still match in type and quality.
- Size details:
Listed sizes refer to pot diameter (cm) and approximate overall height (cm) from the base of the pot to the tallest leaf or stem.
- “Get What You See” items:
If you are buying the exact plant shown in the photos, this is clearly stated in the size section.
- Individual photos:
One‑off photos are only provided when this is explicitly mentioned in the size section. - For special traits or small quirks, please check the full product description.
Secure shipping – carefully packed orders with safe delivery across the EU, UK and Switzerland.
28-day plant guarantee – if a plant arrives damaged or fails soon after delivery, we help you make it right.
Free returns – simple, cost-free returns according to our policy.
For full details, please see:
Hoya krohniana 'Black Leaves'Quick Care Guide
Watering
Water when ~60–80% dry
Potting mix
Airy + fast-draining • Light moisture buffer • Bark-based • Medium-chunky
Temperature
Ideal: 16–24 °C • Avoid below: 10 °C
Growth habit
twining epiphytic vine
Support
optional
Growth speed
Average
Max size indoors
Max. trail length: 100 cm • Max. spread: 50 cm
Toxicity & safety
Non-toxic & Pet Friendly
Origin & habitat
Philippines; wet tropical biome
How to read these metrics
These metrics are standardised reference points. We compile them by reviewing and cross-checking multiple botanical and horticultural references, then refining them through real-world growing experience. Source links: Plant Care Resources.
Please use the values as guidance. Conditions vary by home, so the same plant can respond differently. For plant-specific context, read the full product description and browse our Plant Care Guides.
- Light: level + approximate lux at leaf level; DLI is the daily light “dose” for grow lights.
- Watering: “% dry” is the trigger before watering again; lower % stays more evenly moist.
- Potting mix: one-line profile (structure/drainage • moisture buffer • base • particle size).
- Temperature: “Ideal” comfort range; “Avoid below” marks higher stress risk.
- Humidity: target bands (Normal/Moist/Humid); consistency usually matters most.
- Growth habit: growth form (rosette, trailing, climbing) for placement and training.
- Support: needed/optional/none — whether stake, pole, or trellis improves structure and size.
- Growth speed: fast/average/slow under decent indoor conditions—expectations, not a promise.
- Max size indoors: realistic long-term potential; format differs for climbers vs. trailers.
- Toxicity & safety: chemical irritants/toxicity and physical hazards (spines, bristles).
- Origin & habitat: native region + typical biome/habitat as context.
Hoya krohniana ‘Black Leaves’ – Bold Foliage for Modern Spaces
Hoya krohniana Kloppenb. and Siar ‘Black Leaves’ is a compact, rare tropical plant known for its dark, heart-shaped foliage that turns nearly black under stress or high light. This striking cultivar brings contrast and texture to any plant shelf, with trailing stems and the potential for small, creamy-scented flowers over time. Perfect for minimal-care plant lovers, it thrives in bright, indirect light with just a touch of humidity.
Small size, big presence – why ‘Black Leaves’ stands out
- Compact heart-shaped leaves: 2 – 4 cm wide, slightly succulent, with dark green to bronzed tones that intensify in bright light.
- Low-growing and tidy: Trails gently or climbs with support, great for hanging pots or shelves.
- Matte, textured finish: Unlike most Hoyas, these leaves have a velvety look instead of a waxy shine.
Where Hoya krohniana comes from (and how that helps indoors)
This species is native to lowland limestone forests in the Philippines. In the wild, it grows as an epiphyte on trees and rocks, soaking up filtered light and warm, humid air. That natural setup makes it easy to replicate in modern indoor conditions.
How to keep your Hoya krohniana thriving
- Light: Bright, indirect light is ideal. Some morning sun is fine, but harsh midday rays can damage leaves.
- Watering: Let 70 – 80% of the soil dry before watering. Less is more – overwatering is the top cause of problems.
- Humidity: 60% or higher is best. Clustering plants can help in drier spaces.
- Temperature: Comfortable at 18 – 26 °C. Avoid drafts or heaters.
- Soil mix: Use orchid bark, perlite, and peat-free mix for airflow and drainage.
- Fertilizing: Once a month in spring and summer with a balanced, diluted liquid feed.
- Repotting: Every 2 – 3 years or when truly rootbound. Smaller pots help encourage blooms.
Will it flower? Here’s what to expect
It can bloom once mature. Flowers are tiny, creamy-white with pale pink coronas, and appear in clusters. The scent is soft and sweet. Don’t cut the flower stalks (peduncles) – they’ll bloom again from the same spot.
Propagating ‘Black Leaves’ the right way
- Stem cuttings only: You’ll need at least one node. Leaf cuttings won’t root or grow into full plants.
- Rooting: Use water, perlite, or sphagnum moss. Keep humidity high until roots develop.
Yes, you can grow it in LECA – with these conditions
- Semi-hydro ready: It adapts well to LECA if humidity stays high and roots don’t dry out completely.
- Oxygen is key: Rinse and aerate LECA well to avoid stagnant roots.
Common issues and what to do about them
- Yellow leaves: Likely overwatering. Let soil dry more between waterings.
- Dry tips: Often from low humidity or strong fertilizer. Dial back both.
- Pests: Mealybugs and spider mites can show up. Treat with neem oil, insecticidal soap, or beneficial bugs.
- Leaf drop: Can happen with sudden light or temp changes. Keep conditions steady.
- Latex warning: Milky sap may irritate skin or eyes – rinse off if touched.
The best spot for this dark-leafed stunner
Place near an east- or west-facing window with indirect light for most of the day. Let it trail gently from a shelf or climb a compact trellis to show off those moody leaves.
Botanical background – and why it matters
Botanical name: Hoya krohniana Kloppenb. and SiarPublished in: Fraterna 22(4): 9 (2009)This cultivar, ‘Black Leaves’, isn’t an official grex – just a selection known for extra dark foliage. Named after Philippine plant collector Philip Krohn, this species is loved for its dense growth and compact size.
Answers to your most common questions
- Does it bloom indoors? Yes – with time and bright, stable conditions, mature plants can flower each year.
- Why is my plant turning green again? Lower light fades the dark coloring. Move it closer to a brighter spot.
- Is it safe around pets? It’s non-toxic, but the latex can cause irritation. Keep out of reach.
Order Hoya krohniana ‘Black Leaves’ today
Add a subtle edge to your collection with this compact, low-maintenance Hoya. Shop now and enjoy dramatic foliage, reliable growth, and an easy-care vibe that fits any space.
Plant Care Basics:
Your new plant has just travelled a long way and needs a calm start in its new home. For step-by-step unboxing and first-week care, check our after-delivery care guide. For deeper tips on how your plant settles in over the next weeks, read our houseplant acclimatization guide.
- Care basics – Main hub with links to all houseplant care guides.
- After delivery & first week – Unpacking, first placement, and early recovery.
- Light – How much light houseplants really need indoors.
- Watering – When to water and how to avoid root rot.
- Substrates & roots – Potting mixes and drainage for strong root systems.
- Humidity – When humidity matters and what actually helps.
- Fertilizing – Simple feeding routine without burning roots.
- Problems & pests – Yellow leaves, brown tips, bugs, and fixes that work.
- Semi-hydro – How to run low-maintenance mineral substrates.
Hoya krohniana 'Black Leaves'
Sale price€13,75
Choose options
Hoya krohniana 'Black Leaves'
Sale price€13,75
Apocynaceae
VAT included · plus
- Curated selection:
Every plant is hand‑picked for health and visual appeal, so you receive a strong, well‑established plant.
- Representative photos:
Product images show a typical plant of this variety. Natural differences in leaf number, shape or variegation are normal – your plant will still match in type and quality.
- Size details:
Listed sizes refer to pot diameter (cm) and approximate overall height (cm) from the base of the pot to the tallest leaf or stem.
- “Get What You See” items:
If you are buying the exact plant shown in the photos, this is clearly stated in the size section.
- Individual photos:
One‑off photos are only provided when this is explicitly mentioned in the size section. - For special traits or small quirks, please check the full product description.
Secure shipping – carefully packed orders with safe delivery across the EU, UK and Switzerland.
28-day plant guarantee – if a plant arrives damaged or fails soon after delivery, we help you make it right.
Free returns – simple, cost-free returns according to our policy.
For full details, please see:
Hoya krohniana 'Black Leaves'Quick Care Guide
Light
Very bright / some direct • ≈ 20–40k lux • Grow light target: DLI 12–18
Watering
Water when ~60–80% dry
Potting mix
Airy + fast-draining • Light moisture buffer • Bark-based • Medium-chunky
Temperature
Ideal: 16–24 °C • Avoid below: 10 °C
Growth habit
twining epiphytic vine
Support
optional
Growth speed
Average
Max size indoors
Max. trail length: 100 cm • Max. spread: 50 cm
Toxicity & safety
Non-toxic & Pet Friendly
Origin & habitat
Philippines; wet tropical biome
How to read these metrics
These metrics are standardised reference points. We compile them by reviewing and cross-checking multiple botanical and horticultural references, then refining them through real-world growing experience. Source links: Plant Care Resources.
Please use the values as guidance. Conditions vary by home, so the same plant can respond differently. For plant-specific context, read the full product description and browse our Plant Care Guides.
- Light: level + approximate lux at leaf level; DLI is the daily light “dose” for grow lights.
- Watering: “% dry” is the trigger before watering again; lower % stays more evenly moist.
- Potting mix: one-line profile (structure/drainage • moisture buffer • base • particle size).
- Temperature: “Ideal” comfort range; “Avoid below” marks higher stress risk.
- Humidity: target bands (Normal/Moist/Humid); consistency usually matters most.
- Growth habit: growth form (rosette, trailing, climbing) for placement and training.
- Support: needed/optional/none — whether stake, pole, or trellis improves structure and size.
- Growth speed: fast/average/slow under decent indoor conditions—expectations, not a promise.
- Max size indoors: realistic long-term potential; format differs for climbers vs. trailers.
- Toxicity & safety: chemical irritants/toxicity and physical hazards (spines, bristles).
- Origin & habitat: native region + typical biome/habitat as context.
