Light
Bright indirect • approx. 10,000–20,000 lux
Apocynaceae
Hoya waymaniae (Kapuas) 'Cloudy sky'
Wax Plant
- 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.
VAT included · plus
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.
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Care at a glance
Hoya waymaniae (Kapuas) 'Cloudy sky'
Watering
Water when ~60–80% dry
Substrate
Airy + fast-draining • Light moisture buffer • Bark-based • Medium-chunky
Temperature
Ideal: 16–24 °C • Avoid below: 10 °C
Humidity
Moist 50–60 %
Growth habit
Climbing or trailing epiphytic perennial vine.
Support
recommended
Growth speed
High
Max size indoors
Max. trail length: 20 cm • Max. spread: 20 cm
Toxicity & safety
Non-toxic
Origin & habitat
Cultivar of Hoya waymaniae; species native to Borneo
Outdoor growing
Outside from 15 °C · sheltered from wind and rain
How to read these values
These care values are quick reference points for indoor growing. Use them as a guide, then adjust for pot size, substrate, temperature and how quickly the substrate dries.
For more detail, read the full product description or visit our Plant Care Guides.
- Light: level and approximate lux at leaf level.
- Watering: “% dry” shows how far the substrate should dry before watering again.
- Substrate: structure, drainage, moisture retention, base material and particle size.
- Temperature: “Ideal” shows the preferred range; “Avoid below” marks the cold-stress threshold.
- Humidity: target range; steady conditions usually matter more than exact numbers.
- Growth habit: how the plant grows, such as upright, climbing, trailing, clumping or rosette-forming.
- Support: whether a stake, pole or trellis is needed, optional or unnecessary.
- Growth speed: expected pace under suitable indoor conditions; use as a guide, not a promise.
- Max size indoors: realistic long-term indoor size under good conditions.
- Toxicity & safety: irritation, toxicity or physical hazards such as spines or bristles.
- Origin & habitat: native range, hybrid background or typical habitat where relevant.
- Outdoor growing: when a potted indoor plant can be placed outside and what outdoor protection it needs.
Hoya waymaniae ‘Cloudy Sky’ – Sculptural, Variegated Foliage in Compact Form
Hoya waymaniae Kloppenb. is a thick-leaved species from the humid forests of Borneo, and ‘Cloudy Sky’ is a cultivated variant celebrated for its marbled foliage. This compact plant features leathery, matte leaves with pale grey-green splashes over a blue-green base. In bright light, the leaves develop reddish or copper tones, adding seasonal variation to its look. While flowers may appear over time, this Hoya is prized for its unique foliage and slow, sculptural growth – ideal for shelves, hanging pots, or bright windowsills.
Why Grow Hoya waymaniae ‘Cloudy Sky’?
- Muted variegation: Misty silver-grey speckling over thick, undulating leaves with a matte surface.
- Color shift: In brighter light, foliage takes on subtle reddish hues along the margins.
- Compact growth: Bushy when young and semi-woody with age – great for small indoor spaces.
- Rare but resilient: A great alternative to common trailing Hoyas for collectors seeking texture and structure.
Natural Habitat and Cultivar Background
Hoya waymaniae is native to the Kapuas Hulu region in West Kalimantan, Borneo, where it grows epiphytically in lowland tropical forests. The cultivar ‘Cloudy Sky’ is of unregistered origin, likely selected from wild-collected material for its subtle variegation. It is not formally described in scientific literature but has gained popularity through private collections and specialist growers.
How to Care for Hoya waymaniae ‘Cloudy Sky’
Lighting Preferences
- Thrives in bright, indirect light; filtered sun enhances color and growth.
- Low light reduces contrast in the foliage but won’t harm the plant.
- Protect from strong midday sun to avoid leaf scorch.
Watering Needs
- Water only when the top 3 – 5 cm of substrate has dried.
- Always allow excess water to drain completely – never let it sit in soggy soil.
- Adjust frequency based on light, warmth, and pot size.
Humidity and Temperature
- Prefers 50 – 70% humidity; boost levels if the air is very dry indoors.
- Ideal temperature: 18 – 26 °C. Keep above 15 °C at all times.
Potting and Substrate
- Use a chunky, breathable mix: orchid bark, perlite, and coco coir work well.
- Avoid standard dense potting soils – they suffocate roots in Hoyas.
- Repot only when rootbound, typically every 2 – 3 years.
Fertilization
- Feed every 4 – 6 weeks with a diluted liquid houseplant fertilizer during active growth.
- No need for seasonal breaks – just reduce when growth slows due to low light.
Common Problems and Solutions
Yellowing Leaves
- Cause: Consistent overwatering or poor drainage.
- Fix: Improve substrate structure and spacing between waterings.
Browning Tips
- Cause: Dry air, inconsistent watering, or light stress.
- Fix: Raise humidity and stabilize light and watering habits.
Pests
- Risk: Mealybugs, spider mites, and aphids.
- Treatment: Wipe leaves regularly and treat early with neem oil or insecticidal soap. Introduce predatory insects if infestations persist.
Root Rot
- Cause: Heavy or compacted substrate with poor airflow.
- Fix: Remove damaged roots, repot in fresh airy mix, and reduce watering frequency.
Additional Growing Tips
- Growth habit: Compact and upright when young; becomes semi-woody and benefits from small supports.
- Propagation: Stem cuttings root easily in sphagnum moss, water, or perlite under warm, humid conditions.
- Flowering: May produce orange-yellow reflexed flowers with mild fragrance in ideal conditions, but blooms are rare indoors.
- Hydroponics: Adapts to semi-hydro systems like LECA or pon if kept clean and nutrient-balanced.
- Toxicity: Not classified as toxic, but like most Hoyas, its latex sap can cause mild skin or digestive irritation. Keep out of reach of pets and small children as a precaution.
Etymology and Publication Details
The genus Hoya was named in 1810 by botanist Robert Brown in honor of Thomas Hoy, head gardener at Syon House. The species name waymaniae honors Dr. Marilyn Wayman for her contributions to Hoya research. ‘Cloudy Sky’ is an unofficial cultivar name, inspired by the foliage’s cool, cloud-like variegation.
Taxonomic authority: Hoya waymaniae Kloppenb., published in Fraterna 1995(2): 8.
Plant names, growth habits, natural habitats and indoor care guidance are checked against trusted botanical, habitat and horticultural references before publication.View our plant care resources and references.
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Hoya waymaniae (Kapuas) 'Cloudy sky'
Sale price€39,00
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