Araceae
Alocasia longiloba 'Watsoniana'
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- 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.
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Interested in Alocasia longiloba 'Watsoniana'? Worth reading:
Alocasia longiloba: A Living Legacy of Tropical Elegance
The Complete Aroid Substrate Guide: Match Mix to Roots
Alocasia longiloba 'Watsoniana' at a glance:
Alocasia longiloba ‘Watsoniana’ is one of the historic longiloba cultivars behind several famous hybrids, but it still earns attention on its own through long arrow-shaped leaves, strong silver venation, and purple-backed depth. The plant typically reaches around 60–90 cm indoors and develops a distinctly upright, collector-style habit that feels more refined than sprawling. Because it sits in the background of ‘Amazonica’ and related lines, it appeals through both appearance and horticultural importance.
Bright indirect light keeps the metallic vein contrast clear, while a warm, humid setup and airy substrate support stronger, cleaner leaf development. Like other longiloba forms, it wants consistent moisture without stagnation and quickly loses quality when roots stay cold or waterlogged.
Alocasia longiloba 'Watsoniana'
Quick Care Guide
Light
Bright indirect • approx. 10,000–20,000 lux
Water
Water when ~40–60% dry
Substrate
Aerated • Moisture-buffered • Balanced organic + mineral • Medium
Temperature
Ideal: 18–29 °C • Avoid below: 15 °C
Humidity
Humid 60–80 % +
Growth habit
terrestrial herb
Support
not needed
Growth speed
Average
Max size indoors
Max. height: 100 cm • Max. spread: 100 cm
Toxicity & safety
Toxic
Origin & habitat
Cultivar of Alocasia longiloba
How to read these metrics
These metrics are standardised reference points. We compile them by reviewing and cross-checking multiple botanical and horticultural references, then refining them through real-world growing experience. Source links: Plant Care Resources.
Please use the values as guidance. Conditions vary by home, so the same plant can respond differently. For plant-specific context, read the full product description and browse our Plant Care Guides.
- Light: level + approximate lux at leaf level;
- Watering: “% dry” is the trigger before watering again; lower % stays more evenly moist.
- Potting mix: one-line profile (structure/drainage • moisture buffer • base • particle size).
- Temperature: “Ideal” comfort range; “Avoid below” marks higher stress risk.
- Humidity: target bands (Normal/Moist/Humid); consistency usually matters most.
- Growth habit: growth form (rosette, trailing, climbing) for placement and training.
- Support: needed/optional/none, whether stake, pole, or trellis improves structure and size.
- Growth speed: fast/average/slow under decent indoor conditions—expectations, not a promise.
- Max size indoors: realistic long-term potential; format differs for climbers vs. trailers.
- Toxicity & safety: chemical irritants/toxicity and physical hazards (spines, bristles).
- Origin & habitat: native region + typical biome/habitat as context.
Can Alocasia longiloba 'Watsoniana' be grown outdoors in European climates?
Summer outdoors onlyMore outdoor growing details
Move outside once nights stay above
18°C
Bring under cover below
15°C
Best outdoors in
Warm summer patio, Sheltered urban spot
It can spend warm months outside, but it should go back under cover before cool nights return.
Outdoor note
Best outdoor fit
- Best outdoors in: Warm summer patio, Sheltered urban spot
- Best grown in: Better in container
- Works best as: Summer jungle pot, Shaded terrace accent
Timing
- Move outside once nights stay above: 18°C
- Bring under cover below: 15°C
- Before moving outdoors: Protect foliage from midday sun and drying wind while it adjusts.
- Seasonal timing: Outdoor time starts once nights are consistently above 18°C. Do not leave it out once forecasts dip below 15°C.
Protection and winter
- Protection: Frost-free wintering indoors
- Protection note: It needs bright shade, warmth and steady moisture rather than open exposure.
- Wintering: Overwinter bright, frost-free and out of draughts
- Winter protection: Bring indoors before cold nights or autumn chills
- Not a good fit for: Poor match for hot paving, reflective heat and wind tunnels.
Outdoor conditions
- Drainage: Moist but well-drained
- Moisture outdoors: Evenly moist
- Wind exposure: Sheltered from wind
Plant Care Basics:
- 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.
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.
Alocasia longiloba 'Watsoniana'
Sale price €8,50