05/02/2026
Titan Arum Care Guide 🌱
Light ☀️
Give it bright, filtered light.
Avoid harsh direct afternoon sun, which can scorch the leaf or bloom. In nature, it grows under rainforest canopy light.
Temperature 🌡️
Keep it warm year-round:
Ideal: 75–85°F / 24–29°C
Minimum: 60°F / 16°C
Avoid cold drafts, frost, or sudden temperature drops.
Humidity 💧
This plant loves high humidity, ideally 70–90%.
In a greenhouse or conservatory, misting systems, humidity trays, or humidifiers help keep it happy.
Watering 🚿
Water depends on its growth stage:
Active leaf growth: Keep the soil evenly moist but never soggy.
Flowering stage: Keep slightly moist and stable.
Dormant stage: Water very lightly or barely at all, just enough to keep the corm from shriveling.
Good drainage is critical because the corm can rot if the soil stays wet.
Soil 🪴
Use a rich but airy tropical mix. A good blend is:
orchid bark + perlite/pumice + compost or coco coir + high-quality potting mix
The goal is moisture retention with lots of oxygen around the roots.
Fertilizer 🌿
During active growth, feed regularly because Titan Arum is a heavy feeder.
Use a balanced fertilizer at diluted strength every 2–4 weeks during the growing season. Stop feeding when the plant begins dormancy.
Dormancy 😴
After flowering or after producing a giant leaf, the plant may go dormant. The above-ground growth dies back, but the corm is still alive underground.
During dormancy:
Keep warm.
Reduce watering heavily.
Do not fertilize.
Resume watering only when new growth appears.
Repotting 🧤
Repot during dormancy if needed. Be very gentle with the corm, and choose a large, deep container with excellent drainage. The corm can become extremely heavy as it matures.
Common Problems 🔎
Yellowing leaf: Could be natural dormancy, overwatering, or nutrient deficiency.
Soft corm or bad smell from soil: Possible rot from too much moisture.
Brown crispy edges: Low humidity, underwatering, or too much direct sun.
No bloom: Usually means the corm is not mature or has not stored enough energy yet.
Extra Bloom Tip 🌺
After blooming, don’t rush care changes. Let the plant complete its cycle naturally. The next growth may be a massive leaf instead of another flower, and that leaf is how the corm rebuilds energy for future blooms.
