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Plant care

Hoya Aldrichii (Aldrichii Hoya) care

Hoya aldrichii

Also called Aldrichii Hoya.

RHS H1bUSDA 11-12Pet-safeIndoor Vines can climb 2-3 m or more with support

Watering rhythm

7-12days

When the top 3-5 cm of mix is dry, roughly every 7-12 days

Light

Bright indirect light (just back from a sunny window)

Soil

Coarse, free-draining epiphytic mix

Humidity

50-70%

Temp

18-30°C

Pet safety

Pet-safe

Mature size

Vines can climb 2-3 m or more with support

Care at a glance

Light

In the wild hoya aldrichii grows on the bright edge of a forest canopy, not in the canopy and not in the open. Indoors, that translates to within a metre of an unobstructed window, sheer curtain optional. Bright, filtered light fuels strong growth and abundant blooms; a few hours of soft morning sun is beneficial. Protect the broad leaves from intense midday sun, which scorches them. In dim conditions the vine grows slowly and seldom flowers. The fastest test: a hand held at the leaf casts a soft-edged shadow at noon — sharp shadow means too much sun, no shadow means too little light.

Watering

Aim for when the top 3-5 cm of mix is dry, roughly every 7-12 days for hoya aldrichii, but treat that as a starting point rather than a rule. A south-facing summer windowsill will dry the pot twice as fast as a north-facing winter room. Lift the pot; if it feels noticeably lighter than it did wet, water it. Water deeply, let excess drain, and allow the chunky medium to dry partway before watering again. The large succulent leaves tolerate short dry spells well. Reduce watering in winter and never let roots sit in standing water.

Soil and pot

Hoya Aldrichii grows best in coarse, free-draining epiphytic mix. Use orchid bark, perlite, and coco coir with optional charcoal so the roots stay aerated and water drains fast. A draining pot is essential. As a vigorous, large-leaved climber it benefits from a sturdy trellis or moss pole. A pot with a working drainage hole is non-negotiable for this species — even free-draining mix will turn soggy in a closed planter. If you love the look of a decorative pot without a hole, use it as a cachepot around an inner nursery pot you can lift out to water.

Humidity and temperature

Hoya Aldrichii sits happiest at around 50-70% humidity and 18-30°C (65-86°F). Native to a humid tropical island, it enjoys 50% or more humidity, which keeps the big leaves supple and supports flowering. It adapts to average household humidity but grows best in a humid spot. Avoid cold, dry drafts. If you keep the room above 18 year-round and avoid placing the plant near a cold draught, a hot radiator, or an air-conditioning vent, you have already handled the two biggest indoor stressors.

Fertilising

Feed hoya aldrichii sparingly. Feed every two to four weeks during spring and summer with a balanced houseplant fertiliser at half strength, moving to a higher-potassium bloom feed when buds form. This vigorous Hoya appreciates regular feeding in active growth. Stop feeding over winter. Skip fertiliser entirely on a stressed, recently-repotted, or actively wilting plant — fertiliser salts make damage worse, not better. Wait for a round of healthy new growth before resuming a feeding rhythm.

Common problems

Below are the issues we see most often on hoya aldrichii in the Growli community. Each is annotated with the most common cause so you know where to start.

  • Root rot from overwateringDense, wet soil suffocates and rots the roots. Use a chunky, fast-draining mix and a draining pot, and let it dry between waterings.
  • Slow to flowerOften needs maturity and strong light before blooming. Provide bright indirect light, be patient, and never remove the perennial flower spurs.
  • Scorched leavesDirect midday sun bleaches or burns the broad leaves. Move it to bright indirect light or filter the harshest rays.
  • Mealybugs and scaleSap-sucking pests gather in leaf axils and on peduncles. Treat with insecticidal soap or diluted alcohol and quarantine new arrivals.

Propagation

Propagate from stem cuttings with at least one node and a leaf pair; root in sphagnum moss, water, or a perlite mix kept warm and humid. Roots appear in a few weeks. Leave flowering peduncles intact, as they rebloom from the same spur. Propagation is the cheapest, most satisfying way to expand a collection — and it doubles as insurance against losing a mature plant to an accident. Take a backup cutting once the parent is established and healthy.

Toxicity to pets

Hoya Aldrichii is pet-safe. Hoya is ASPCA-listed as non-toxic to cats and dogs; the genus (e.g. Hoya carnosa, wax plant) appears on the ASPCA non-toxic plant list and no toxic principle is recorded. Eating leaves may still cause mild stomach upset from fibre, so discourage pets from chewing. If you keep cats, dogs, or curious children in the house, weigh placement carefully — a high shelf or a hanging planter is enough for casual safety. For severe ingestion incidents, call your local vet and the ASPCA Animal Poison Control Center (in the US, 888-426-4435).

Pet-safety status is sourced from the ASPCA Toxic and Non-Toxic Plant List, which catalogues the most-asked-about plants for cats, dogs, and horses.

Hoya Aldrichii care — frequently asked questions

What is the common name for Hoya aldrichii?

Hoya aldrichii is most commonly called Hoya Aldrichii, but it is also known as Aldrichii Hoya. The names refer to the same species, so care instructions for Hoya Aldrichii apply identically to anything sold as Aldrichii Hoya.

How much light does hoya aldrichii need?

Hoya Aldrichii grows best in bright indirect light (just back from a sunny window). Bright, filtered light fuels strong growth and abundant blooms; a few hours of soft morning sun is beneficial. Protect the broad leaves from intense midday sun, which scorches them. In dim conditions the vine grows slowly and seldom flowers.

How often should I water hoya aldrichii?

Water hoya aldrichii when the top 3-5 cm of mix is dry, roughly every 7-12 days. Water deeply, let excess drain, and allow the chunky medium to dry partway before watering again. The large succulent leaves tolerate short dry spells well. Reduce watering in winter and never let roots sit in standing water. The finger-test (or lifting the pot to feel its weight) beats a fixed weekly calendar because pot size, light, and season all change how fast the soil dries.

Is hoya aldrichii toxic to cats and dogs?

Hoya Aldrichii is pet-safe. Hoya is ASPCA-listed as non-toxic to cats and dogs; the genus (e.g. Hoya carnosa, wax plant) appears on the ASPCA non-toxic plant list and no toxic principle is recorded. Eating leaves may still cause mild stomach upset from fibre, so discourage pets from chewing.

What USDA hardiness zone does hoya aldrichii grow in?

Hoya Aldrichii is rated for USDA zone 11-12 (indoor in most US homes) and RHS hardiness H1b. Outside that range, grow it as a container plant that overwinters indoors before the first hard frost.

Hoya Aldrichii deep-dive guides

Every aspect of hoya aldrichii care, each with its own calibrated guide:

Featured in these plant shortlists

Hoya Aldrichii qualifies for 11 curated Growli shortlists — each one filtered objectively from our structured plant-care library, so the selection is consistent and checkable:

Related guides

Hoya Aldrichii is also commonly called Aldrichii Hoya.