Hoya krohniana 'Splash' leaf close-up on white background.

Hoya krohniana 'Splash' potted plant in nursery pot on white background.

Apocynaceae

Hoya krohniana ‘Splash’

Wax Plant

Pet Friendly

Irregular silver mottling crosses the small leaves of Hoya krohniana ‘Splash’. Oval and softly heart-shaped leaves grow together along the same fine trailing stems.

Read full guide to Hoya krohniana ‘Splash’

€9,25

VAT included · plus

Plant size: Pot Ø 6 cmapprox. 10 cm tall

Sizes are approximate. Height is measured from the bottom of the pot to the top of the plant; diameter at the widest point.

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Care at a glance

Hoya krohniana ‘Splash’

Light

Bright indirect • approx. 10,000–20,000 lux

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

Elevated 50–60%

Growth habit

Climbing or trailing epiphytic perennial vine.

Support

recommended

Growth speed

Average

Cultivated size guide

Trail length: 100 cm • Spread: 50 cm

Toxicity & safety

Non-toxic

Origin & habitat

Cultivar of Hoya krohniana; species native to the Philippines

Outdoor growing

Outside from 15 °C · sheltered from wind and rain

How to read these values

These care values give practical guidance for growing the plant. Adjust care 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 growing conditions; use as a guide, not a promise.

Cultivated size guide: approximate dimensions for an established plant in the stated growing context. Height is measured upwards from the growing surface; foliage height excludes flower stems. Trailing length follows a stem, while foliage drop is the vertical distance from the crown to the lowest leaf tips. Spread is the width of the leafy plant or crown, not an individual leaf. Flowering height includes the flower stems. A container guide applies to pot-grown plants; an in-ground guide applies to plants rooted in the ground. Size also depends on age, conditions, pot space and training.

These figures do not describe the size supplied and are not fixed upper limits.

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 krohniana ‘Splash’

Small pointed leaves sit closely along fine stems. Their shape ranges from ovate to lightly heart-shaped, with pale silver mottling spread unevenly across the green surface.

Some leaves remain mostly green while others carry much denser silver on the same plant. Close branching gathers these different patterns into compact trailing growth while the pointed outline of each blade remains visible.

A variable splash on miniature krohniana foliage

Leaves: Small ovate to slightly heart-shaped blades with sharp tips.
Pattern: Irregular silver flecks and mottling.
Variation: Large differences in silver coverage between leaves.
Habit: Fine trailing stems with dense branching.

Origin & background

Cultivated form and natural range of Hoya krohniana ‘Splash’

‘Splash’ is a cultivated silver-marked form of Hoya krohniana, a small-leaved trailing epiphyte native to the Philippines.

Plant care

Care for Hoya krohniana ‘Splash’

Support: Let the fine trailing stems hang from the pot or guide their roughly 100 cm of growth around a light hoop.
Placement: Provide bright, softly diffused light and keep the small leaves away from hot glass. Shield soft heart-shaped leaves from the hottest midday rays, which can mark the silvered surface before it hardens.
Variable silver: The amount of splash differs strongly between the small leaves. Bright filtered light supports compact growth but cannot alter mature markings.
Temperature and humidity: Warm, stable conditions around 16–24 °C suit it; 10 °C is the lower limit for prolonged exposure. Aim for about 60–80% humidity. Pair this with light air movement around the leaves.
Watering and potting mix: Choose an airy, freely draining potting mix. As a guide, water when the upper third to half of the mix has dried, with some moisture still remaining lower down. Check the centre of the root ball before watering. Allow more time between waterings when the fine runners pause, but never let the whole root ball dry out completely. Water the whole root ball evenly and let the excess drain. Small repeated drinks wet the root ball unevenly, leaving both dry pockets and stale damp areas.
Feeding: Feed with orchid fertiliser at moderate strength during active growth and reduce applications when the plant slows down.
Repotting: With ‘Splash’, choose a larger pot only if the roots are crowded; otherwise renew the mix in the present size.
Propagation: Use a healthy stem cutting with a node for propagation, keeping it in warm conditions until it has rooted.

Issues & solutions

Dry roots, damaged new leaves and stalled vines in Hoya krohniana ‘Splash’

Fine roots dry out before the small heart-shaped leaves begin to wrinkle: Repeated severe drying may have damaged the fine roots, but leaf wrinkling alone does not confirm root death. Check the root ball first. Keep every firm, healthy root and remove only clearly dead or rotten sections with clean, disinfected scissors. If the root ball is dry and remaining roots are sound, water thoroughly and allow the pot to drain whenever the upper mix reaches its normal drying point. Do not let the whole pot become brittle. Keep a green runner intact. Shorten it only after a node turns soft, black or completely dry.
New silver-splashed leaves show scratches or black specks: New scratches and black specks on silver-splashed young leaves can signal thrips. Inspect the tender growth for live insects, then isolate the plant if they are present. Carefully rinse accessible leaf surfaces and keep any green, healthy growing tips. For a continuing infestation, choose only a product approved in your country for thrips on indoor ornamental plants and follow its labelled coverage, treatment intervals and safety directions. A blue sticky card helps monitor flying adults.
The fine trailing stem stops even though the stem is still green: Soft new tissue is trapped against a tie, leaf or support. Open the tie, move the tip away from obstacles and support the internode beneath it. Leave living tip growth intact, cutting only sections that clearly decay.
A silver-splashed leaf turns crisp on the window-facing side: The pale tissue overheated before the fine roots could replace the lost moisture. Move the trailing stems farther from hot glass and keep the next soft growth in bright filtered light. Retain a firm damaged leaf.

Safety

Hoya krohniana ‘Splash’: precautions for people and pets

This Hoya is generally considered low risk to cats and dogs, but reliable species- and cultivar-specific veterinary toxicity evidence is limited. Keep the plant out of reach of pets or children who chew it; sap from cut stems may irritate skin or eyes, so rinse any exposed area.
Chewing a large amount can still cause an upset stomach.
If a large amount is eaten and symptoms continue, contact a veterinarian or medical professional.

Names & etymology

Hoya krohniana: where the name comes from

Hoya honours the English gardener Thomas Hoy. The epithet krohniana honours the Krohn family connected with the original cultivated material.

Robert Brown established the genus Hoya in 1810 in Prodromus Florae Novae Hollandiae, page 459.

Robert Dale Kloppenburg and Monina V. Siar first described Hoya krohniana in 2009 in Fraterna, volume 22, issue 4, page 9.

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.