Light
Bright indirect • approx. 10,000–20,000 lux
Araceae
Alocasia longiloba
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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.
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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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Alocasia longiloba
Quick Care Guide
Watering
Water when ~20–35% dry
Substrate
Aerated • Moisture-buffered • Balanced organic + mineral • Medium
Temperature
Ideal: 18–28 °C • Avoid below: 15 °C
Humidity
Humid 60–80 % +
Growth habit
Upright clumping herbaceous perennial.
Support
not needed
Growth speed
Average
Max size indoors
Max. height: 100 cm • Max. spread: 100 cm
Toxicity & safety
Toxic
Origin & habitat
Native from China (southern Yunnan, Guangdong) to western and central Malesia
Outdoor growing
Outside from 15 °C · sheltered spot
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.
Alocasia longiloba
Alocasia longiloba is a variable long-lobed Alocasia with elongated leaves, pale vein contrast and a rhizome that can become visible with age. Some forms look narrow and spear-like, while others develop broader, shield-shaped blades. Mature shape becomes clearer after several leaves have hardened.
The species grows across wet tropical parts of Southeast Asia into western and central Malesia. It is found in rainforest floor conditions, swamp forest, regrowth, rocky places, ravines and forest boulder habitats. That range explains why it needs moisture, but also an open mix around the rhizome and roots.
Long lobes, pale veins and rhizome growth
Alocasia longiloba can range from smaller plants to robust specimens around 40–150 cm tall in species descriptions. Petioles can be long, often green, pinkish, purple-brown or mottled. Leaves are usually elongated, with a pointed front lobe and extended basal lobes near the petiole attachment.
The upper surface is usually green with pale grey-green to silvery veins. The underside may be green, purple or maroon-purple depending on the form and leaf age. The plant grows from an elongate rhizome, a thick stem-like base that may sit partly above the substrate as the plant matures.
Care for a rhizomatous Alocasia longiloba
- Light: Bright indirect light or soft filtered sun helps petioles stay stronger and brings out the vein contrast.
- Moisture: Water deeply, then wait until the upper layer has dried and the pot feels lighter. Keep the mix lightly moist but open enough that air can reach the roots and rhizome.
- Substrate: Use a breathable aroid mix with bark, coco husk, coarse mineral drainage and a moisture-holding base.
- Root warmth: Warm roots keep growth moving. Cool, wet conditions slow recovery and increase rhizome risk.
- Humidity: Higher humidity helps long leaf edges harden with fewer dry marks.
- Feeding: Feed during active growth, especially when the plant is sizing up leaves. Hold back when growth pauses.
- Rhizome position: Keep the rhizome firm and stable at the surface. Keep old soft leaf bases above the dampest part of the substrate.
Seasonal pauses and root-zone checks
Alocasia longiloba often grows in pauses, where one large new leaf may be followed by a slower period. The plant may pause after transport, flowering, repotting or low-light periods. During a quiet phase, the rhizome should stay firm and the petioles should remain stable.
Stress often shows first in the base and leaves:
- Soft rhizome: Inspect immediately. If only part of the rhizome is soft, firm sections may recover in fresh, airy substrate.
- Yellowing leaves: Cold roots, stale lower substrate or rhizome stress are common causes.
- Weak petioles: Light level, pot stability and root condition all matter.
- Small new leaf: Stress, flowering, old substrate or reduced warmth can reduce the next leaf size.
- Brown edges: Humidity, mineral build-up and watering consistency are the main checks.
- Pest marks: Spider mites, thrips and scale can hide along veins, petioles and leaf backs.
Divide only when roots and new growth are active. Offsets, divisions or rhizome sections need firm tissue and a stable, airy mix to restart well. Fully faded leaves can be cut away, while marked green leaves should stay because each large blade still feeds the rhizome.
Alocasia longiloba can produce solitary or paired inflorescences with a spathe and spadix, followed by orange-red fruits. All parts contain calcium oxalate crystals, so keep leaves and rhizome pieces away from pets and children that may ingest plant parts. The name longiloba means long-lobed, referring to the extended lobes of the leaf blade.
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 Alocasia longiloba – lobing, purple undersides, and pot size
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