The quality-filtered native-record profile for Hoya carnosa centers on 22.0°C annual mean temperature and 3130 mm annual precipitation. Its robust p10–p90 climate envelope is wider than those two medians: the coldest-month minimum spans 9.2–17.5°C, while modeled annual rainfall spans 2181–4387 mm.

This is a computed environmental fingerprint built from 30 spatially thinned climate points attached to filtered GBIF records inside the POWO native range of southern China to Laos and southern Japan to Taiwan. It describes where retained records occur in long-term gridded climate; it is not an indoor-care prescription or a physiological tolerance test.

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Hoya carnosa Climate DNA at a glance

Signal Computed result
Annual mean temperature median 22.0°C
Coldest-month minimum, p10–p90 9.2–17.5°C
Warmest-month maximum, p10–p90 27.6–30.7°C
Annual precipitation median 3130 mm
Precipitation seasonality median 42.1 CV
Evidence 30 climate points; medium confidence (51/100)

The source plant is described as a subtropical climbing epiphyte or lithophyte. That botanical context matters because the same regional rainfall, humidity, or radiation can be experienced very differently by a climber, epiphyte, geophyte, tree, or succulent. The page therefore reports the climate evidence without turning it into a universal potting or watering formula.

Hoya carnosa Climate DNA percentile ranges Five occurrence-derived climate distributions. Thin lines show p10 to p90, thick green bars show p25 to p75, and dots show medians. Annual mean temperature19.9°Cmedian 22.0°C23.4°CColdest-month minimum9.2°Cmedian 12.5°C17.5°CWarmest-month maximum27.6°Cmedian 28.9°C30.7°CAnnual precipitation2181 mmmedian 3130 mm4387 mmPrecipitation seasonality28.2 CVmedian 42.1 CV70.2 CV
Thin line: p10–p90. Thick bar: middle 50% (p25–p75). Dot: median. Each row uses its own scale.

What stands out in the computed profile

  • Temperature center: The annual-mean median is 22.0°C, with the middle 50% of sampled points between 20.6 and 22.6°C. In this model that is a warm annual baseline.
  • Cold and heat edges: The robust outer envelope runs from 9.2°C at the p10 coldest-month minimum to 30.7°C at the p90 warmest-month maximum. The 21.5°C span is moderate; it is an occurrence-climate span, not a laboratory tolerance range.
  • Rainfall volume: Median modeled annual precipitation is 3130 mm, while the p10–p90 range is 2181–4387 mm. The wet end is 2.0 times the dry end, evidence that one annual total would hide real geographic variation.
  • Rainfall timing: The precipitation-seasonality median is 42.1 CV, placing this record set in the fairly even band used by this renderer. That describes variation through the year, not how often to water a pot.
  • Atmosphere and open sky: Relative humidity centers on 65.1%, while solar radiation centers on 14.6 MJ/m²/day. Both are gridded outdoor climate values; neither reports the humidity or light at an indoor leaf.

Together, those observations describe the climate attached to retained records of Hoya carnosa. They do not establish the species’ physiological limits, and they should not be converted directly into thermostat, humidifier, or watering targets.

Native-record climate envelope

Variable p10 p25 Median p75 p90
Annual mean temperature 19.9°C 20.6°C 22.0°C 22.6°C 23.4°C
Coldest-month minimum 9.2°C 10.2°C 12.5°C 15.8°C 17.5°C
Warmest-month maximum 27.6°C 28.3°C 28.9°C 29.4°C 30.7°C
Annual precipitation 2181 mm 2500 mm 3130 mm 3759 mm 4387 mm
Precipitation seasonality 28.2 CV 29.6 CV 42.1 CV 47.4 CV 70.2 CV
Relative humidity 61.6% 62.6% 65.1% 67.9% 70.7%
Solar radiation 13.2 MJ/m²/day 13.8 MJ/m²/day 14.6 MJ/m²/day 15.5 MJ/m²/day 15.9 MJ/m²/day

The outer p10–p90 values are a robust descriptive envelope; the middle p25–p75 band shows where the central half of sampled climate values falls. Neither band is an “ideal range.” Occurrence density, collection effort, native-range boundaries, coordinate quality, and CHELSA grid resolution all shape what appears here.

Native occurrence records

Zoomed quality-filtered Hoya carnosa occurrence coordinates Coordinate plot automatically zoomed to the retained native-country GBIF records. Axes show longitude and latitude in degrees. 93.8°104.0°114.2°124.5°134.7°16.3°20.3°24.4°28.4°32.5°
Auto-zoomed coordinate plot of 165 retained native-country GBIF points. This is a record footprint, not a complete species-range map.

The CHELSA climate-extraction sample covers 22 quarter-degree grid cells across the native-country filter (CN, JP, LA, MM, TW). Its coordinate bounds run from 22.014° to 30.631° latitude and 106.818° to 131.239° longitude. Bounds show sampled coverage, not the legal or botanical outline of the species’ range.

Filtering stage Records
GBIF records returned before filters 1710
Accepted before spatial thinning 480
Usable coordinates after spatial thinning 165
CHELSA climate-extraction points 30

Recorded rejection counts were basis of record: 8, coordinate uncertainty: 26, license: 1196. The pipeline also constrains records to the POWO native-country list, removes duplicate spatial cells, and retains the source timestamp and record-set hash. A low count can be scientifically honest: it is better to expose weak coverage than to fill the gap with invented precision.

How this profile compares inside its 10-plant cluster

Within this release cluster, Hoya carnosa ranks #8 of 10 for median coldest-month temperature, #7 for annual-mean temperature, #2 for annual precipitation, #8 for precipitation seasonality, and #4 for usable climate-point sample size. Ranks compare only the ten selected profiles and are descriptive, not measures of plant quality or indoor difficulty.

The closest profiles in the same normalized seven-variable comparison are:

The cluster was selected deterministically: the ten not-yet-covered popular houseplants from the implementation brief or existing care library that have an accepted GBIF species match, a POWO native distribution, and at least five retained native-country occurrence points across five quarter-degree cells; candidates below that evidence gate were excluded. This keeps the collection rule reproducible and prevents an editorial label from overriding the data.

What this can—and cannot—change about care

Native-record climate can improve the questions you ask. For Hoya carnosa, the very wet rainfall median and fairly even precipitation signal indicate that annual rain volume alone is incomplete. Indoors, substrate structure, pot volume, root density, airflow, temperature, and actual light determine drying. Never convert millimeters of regional rainfall into a weekly watering interval.

The same limit applies to temperature, humidity, and solar radiation. CHELSA describes outdoor long-term grid cells; glass, walls, heating, air conditioning, shade, and distance from a window create a different microclimate. Use this profile to understand the source evidence and to frame observations, then use the Hoya care guide for practical indoor-care context.

Confidence and limits

Confidence is medium (51/100). The score reflects sample size, spatial coverage, and coordinate-precision reporting in this pipeline version. It is not a probability that the numbers are “correct,” and it does not measure how well a particular plant will perform in a particular home.

Important limits remain: GBIF is a record of observations and specimens, not a balanced field survey; a native-country filter is coarser than a verified native-range polygon; historical and cultivated records can be difficult to classify; CHELSA values are modeled long-term normals rather than sensor readings at each plant. The page reports ranges and provenance so those constraints remain visible.

Methodology and sources
  1. Resolve the accepted taxon through the GBIF Species API and retain the taxon key 8658195.
  2. Constrain the occurrence query using the POWO native distribution: Southern China to Laos and southern Japan to Taiwan.
  3. Filter GBIF occurrence records for usable coordinates, uncertainty, basis of record, establishment signals, duplicate locations, native countries, and compatible CC0/CC-BY licensing.
  4. Spatially thin accepted records at 0.05° before climate extraction so dense collecting areas do not dominate the distributions.
  5. Sample CHELSA-climatologies V2.1 1981-2010 grids using stable hash sample, maximum 30 post-filter and spatially thinned GBIF records and calculate p10, p25, median, p75, and p90 deterministically.
  6. Persist source URLs, timestamps, rejection counts, record hash 12c3fd4f4b6b673f0b32855829cda3fa0c0b9b8e1d660d002c9892453637ba38, and fact hash 5eee62ded6ee381cd2a2d469566411dfc355ef851f4c84b8639069f30486ec29.

Source licenses recorded by the pipeline: occurrences, CC-BY-4.0, CC0-1.0 on retained records; CHELSA climate layers, CC0-1.0. Derived summaries and comparisons are transformations of the cited source data.

Continue from the data

Bring the evidence back to your actual plant

Use KnowYourPlant to identify the species, record changes, and compare this broad climate context with conditions in your home.

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