Light
Bright indirect • approx. 10,000–20,000 lux
Apocynaceae
Hoya callistophylla sp. Kalimantan
- 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:
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- 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.
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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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Hoya callistophylla sp. Kalimantan
Quick Care Guide
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
Slow
Max size indoors
Max. trail length: 100 cm • Max. spread: 50 cm
Toxicity & safety
Non-toxic
Origin & habitat
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 callistophylla ‘Kalimantan’ – Rare Collector Foliage from Borneo
Hoya callistophylla ‘Kalimantan’ is a rare collector clone of Hoya callistophylla Rintz, originally gathered from the tropical lowlands of Kalimantan, Borneo. Known for its thick, elongated leaves with bold, reticulate veins and sculptural surface, this plant is a foliage-first standout. It grows slowly but rewards patience with dramatic, high-contrast texture – ideal for structured plant displays and indoor climbing setups.
What Sets the Kalimantan Form Apart?
The leathery leaves are distinctly bullate – slightly puckered between deeply etched, dark green veins. The background ranges from pale lime to olive, depending on light and age. Compared to other forms, the Kalimantan clone often has thicker leaves with sharper venation, giving it a more architectural look under indoor conditions.
Natural Origin, Growth Form and Taxonomy
Hoya callistophylla was first described by Rintz in Blumea 24(2): 442 (1978). It’s native to lowland forests in Borneo, especially regions below 500 m elevation, where it grows as an epiphyte or lithophyte on tree trunks and rocky outcrops. This Kalimantan form prefers vertical support and thrives in filtered light with high humidity – just like in its native habitat.
How to Care for Hoya callistophylla ‘Kalimantan’
- Light: Bright, indirect light is ideal. East or west-facing windows work best. Use sheer curtains on south-facing spots to avoid scorching. Low light slows growth and dulls leaf contrast.
- Water: Let the top 3 – 5 cm of substrate dry completely before watering. Ensure the pot has good drainage to avoid root rot.
- Humidity: Prefers >60% humidity. Grouping plants, using LECA trays, or placing in a closed terrarium cabinet helps mimic its natural environment.
- Temperature: Thrives between 18 – 26°C. Avoid cold drafts and temperatures below 15°C.
- Substrate: Use an airy mix – 50% potting soil, 25% orchid bark, 25% perlite or pumice. A pinch of charcoal helps maintain root health.
- Feeding: Fertilize monthly with a balanced liquid feed diluted to half strength. No seasonal changes needed indoors unless light or warmth drop significantly.
Common Problems and Their Fixes
- Yellowing leaves: Often caused by overwatering or compacted substrate. Improve aeration and let the soil dry thoroughly.
- Brown edges: Linked to low humidity or too much direct sun. Raise humidity and reposition if needed.
- Pests: Mealybugs and spider mites are the usual suspects. Treat early with neem oil or insecticidal soap. Isolate if needed.
Advanced Tips for Better Growth
- Climbing support: This plant climbs, not trails. Offer a bamboo hoop, moss pole, or vertical wire grid for upward growth.
- Growth rate: Expect 1 – 2 new leaves per month under ideal conditions. Slow, steady, and spectacular.
- Pruning: Snip leggy stems just above a node to encourage branching and fuller foliage.
- Cleaning: Wipe leaves gently with a damp cloth to remove dust. Avoid misting to prevent fungal issues.
Toxicity Info
Hoya callistophylla is considered non-toxic to pets and humans. Still, best practice: keep out of reach of pets and children who might chew on the leaves.
Why “callistophylla”?
Named after English botanist Thomas Hoy, the genus Hoya includes hundreds of tropical species. The species name “callistophylla” combines the Greek kallos (beauty) and phyllon (leaf) – a perfect nod to its striking venation.
Before You Buy
- Style: Vining and upright with support. Looks best trained on frames or trellises.
- Flowering: Rare indoors. Foliage is the main event.
- Pot choice: Use breathable pots (e.g. terracotta) with drainage holes. Avoid oversized or moisture-retaining containers.
- Good companions: Pair with Hoya finlaysonii or Hoya aff. vitellina for a bold-textured Hoya corner.
Looking for bold texture with minimal care? Order Hoya callistophylla ‘Kalimantan’ today and bring the striking depth of Borneo’s forests into your home.
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.
FAQs about Hoya callistophylla sp. Kalimantan
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