Light
Bright indirect • approx. 10,000–20,000 lux
Rubiaceae
Hydnophytum moseleyanum
Ant 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
Hydnophytum moseleyanum
Watering
Water when ~25–40% dry
Substrate
Airy + fast-draining • Light moisture buffer • Bark-based • Medium-chunky
Temperature
Ideal: 20–30 °C • Avoid below: 10 °C
Humidity
Humid 60–80 % +
Growth habit
Epiphytic caudiciform shrub.
Support
not needed
Growth speed
Slow
Max size indoors
Max. height: 70 cm • Max. spread: 45 cm
Toxicity & safety
Pet safety unconfirmed
Origin & habitat
Native to New Guinea
Outdoor growing
Indoor only
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.
Hydnophytum moseleyanum – rare epiphytic ant-plant with chambered caudex
Hydnophytum moseleyanum Becc., often encountered in cultivation under the synonym Hydnophytum papuanum, is a fascinating epiphytic myrmecophyte from the rainforests and mangroves of Papua New Guinea and nearby regions. This unusual plant forms a swollen, chambered caudex at the base of its stems, providing natural shelter for ants. In the wild, it lives in a mutualistic partnership with Philidris ants: the plant benefits from nutrients contained in detritus stored by the ants, while the ants gain protection and additional food sources. This adaptation makes Hydnophytum a striking example of ecological specialization – and a unique collector’s plant for those fascinated by botanical oddities.
Key features of Hydnophytum moseleyanum
- Growth habit: Exclusively epiphytic, forming a swollen, chambered caudex.
- Leaves: Slightly succulent, glossy green foliage borne on thin, upright stems.
- Caudex: Smooth and globular, often large, with natural cavities used by ants in habitat.
- Flowers and fruit: Small, inconspicuous flowers form in leaf axils, followed by yellow to orange berries.
- Adaptations: Myrmecophytic – adapted to house ants and benefit from their presence.
Natural habitat and ecology
This species is native to tropical Papua New Guinea and surrounding areas, where it inhabits rainforest trees and mangrove hosts. It never grows terrestrially, relying instead on its epiphytic lifestyle. The symbiotic relationship with ants defines its ecological role: ants store detritus in its caudex chambers, enriching the plant with essential nutrients. In return, the plant provides a secure refuge. This intricate interaction makes Hydnophytum moseleyanum an excellent educational specimen to illustrate mutualism in nature.
Cultivation and care of Hydnophytum moseleyanum
- Light: Bright, indirect light is ideal; avoid harsh, direct midday sun.
- Temperature: Warm conditions of 18 – 28 °C; protect from temperatures below 15 °C.
- Watering: Keep substrate evenly moist but not waterlogged; allow slight drying between waterings.
- Humidity: Prefers high humidity (70 % or above) to replicate its rainforest origins.
- Substrate: Best grown in a well-draining epiphytic mix with bark, perlite, and organic matter.
- Pruning: Regular trimming encourages compact, balanced growth.
- Feeding: Apply diluted, balanced fertilizer monthly during active growth.
Potential issues in cultivation
- Root or caudex rot: Caused by excessive watering or poor drainage.
- Weak growth: Often the result of insufficient light or overly dry air.
- Pests: Occasionally prone to scale insects or mealybugs on stems and leaves.
Additional notes
Although this species hosts ants in nature, cultivated specimens do not require ants to thrive. The caudex chambers remain empty but retain their characteristic form, adding to the plant’s visual intrigue. Its unusual structure makes it a centerpiece in terrarium setups, botanical collections, or as a conversation piece for growers of caudiciform and ant-associated plants.
Etymology
The genus name Hydnophytum comes from the Greek hydnon (“tuber”) and phyton (“plant”), referring to the swollen, tuber-like stems. The species epithet moseleyanum honors Henry Nottidge Moseley (1844 – 1891), a British naturalist known for his botanical contributions during the Challenger expedition.
Add Hydnophytum moseleyanum to your collection
If you’re looking for a plant that combines botanical rarity, fascinating ecology, and sculptural form, Hydnophytum moseleyanum is an outstanding choice. Order today and enjoy one of nature’s most unusual ant-plants in your collection.
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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Hydnophytum moseleyanum
Sale price€12,00
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