Plant Comparison

Calathea vs Alocasia

The quick way to tell them apart: Calathea leaves look painted (stripes, feathers or rings, often purple underneath) and fold upward at night, and the plant grows in a low clump. Alocasia leaves are arrow- or shield-shaped on long stems, with thick, contrasting veins, and the plant grows from an underground corm that can go dormant. Calathea and Alocasia are two of the most visually striking tropical houseplants — but both are also notoriously demanding. Calathea is famous for its patterned, prayer-like leaves; Alocasia for its huge, arrow-shaped foliage. Both require high humidity and careful watering, but they differ significantly in what they punish you for getting wrong.

Side-by-Side Comparison

CategoryCalatheaAlocasia
💡 Light needs★Medium indirect — sensitive to direct sunBright indirect — needs more light than Calathea
💧 WateringKeep consistently moist — never dry outAllow top 2–3 cm to dry; sensitive to overwatering
💦 Humidity60–80% — very sensitive to dry air60–80% — equally demanding
🌡️ Temperature18–30°C — dislikes temperature fluctuations18–30°C — dormancy below 15°C
📏 Growth rateSlow to moderate — small new leaves★Fast in season — dramatic large leaves
🌿 Leaf interestPatterned, coloured undersides, moves dailyEnormous, glossy, architectural
🎯 DifficultyAdvanced — sensitive to water qualityAdvanced — prone to dormancy and sudden leaf drop
🐛 Pest riskSpider mites (high risk in dry air)Spider mites, mealybugs, scale
💧 Water sensitivityNeeds distilled or rainwater — tap water causes tip burn★Less fussy about water quality
❄️ Dormancy★No dormancyDormancy possible in winter — leaves may drop

Choose Calathea if…

  • ✓You want patterned, decorative foliage with daily leaf movement
  • ✓You have medium indirect light without a very bright windowsill
  • ✓You're happy to use filtered or rainwater for watering
  • ✓You want a plant that stays evergreen year-round without dormancy
Calathea Problem Guide →

Choose Alocasia if…

  • ✓You want the biggest, most architectural leaves possible
  • ✓You have a bright spot and can maintain high humidity
  • ✓You don't mind the plant going dormant in winter
  • ✓You want fast, dramatic growth during the growing season
Alocasia Problem Guide →

What They Have in Common

  • •Both require high humidity (60%+) and suffer in dry heated rooms
  • •Both are sensitive to cold draughts and temperature swings
  • •Both are non-toxic to cats and dogs
  • •Both are classified as advanced houseplants requiring consistent care

The Verdict

Neither Calathea nor Alocasia is easy — but Alocasia is more forgiving about water quality, and its dormancy in winter is a feature rather than a bug (it's resting, not dying). Calathea's tip-burn from tap water and constant high humidity needs make it the more demanding of the two.

Real Alocasia grow diaries

Growers on DailyGrowers log their plant week by week, one photo at a time. Here's how theirs are going.

Growing Alocasia too? Start your own diary. It's free and takes 2 minutes.

Start my Alocasia diary →
Sweety Competition Cup 2026 — Grand Prize $400, registration open until 1.1.2027