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Perfect for Home Gardeners
The Giant Colocasia is truly a spectacle of nature. When it reaches its peak, it stands as one of the largest in the plant kingdom, growing up to an impressive 10 feet in height.
The leaves, a striking light green/gray hue, can grow up to 5 feet long and 4 feet wide. These leaves increase in size each year, adding a dynamic, ever-evolving element to your garden.
Primed & Ready to Sprout Bulbs
Cultivation is flexible and rewarding. For optimal growth and the biggest, most luscious leaves, we recommend planting your Colocasia in a location that receives full sun and regular, heavy watering.
However, it also thrives in partial sun. Expect to see signs of growth within 6 to 8 weeks after planting.
Grow Tropical, Stay Local
Our Giant Colocasia bulbs are meticulously prepared and primed, ensuring they are ready to sprout as soon as you plant them.
The bulbs come in a range of sizes, from the compact golf ball to the more substantial softball size. Regardless of the initial size, each bulb is destined to grow into the same magnificent plant.
Growing Guide
- Best Time to Plant: Spring, after the last frost, when the soil temperature is at least 65°F.
- Location: Full sun to partial shade. More sun encourages larger leaves.
- Soil: Rich, well-draining soil with plenty of organic matter.
- Spacing: 2–4 feet apart, depending on the variety.
Watering & Fertilizing
- Water Needs: Keep soil consistently moist but not waterlogged. These plants thrive in wet conditions.
- Fertilizer: Apply a balanced, slow-release fertilizer at planting. Feed every two to four weeks with a high-nitrogen fertilizer for vigorous growth.
Temperature & Humidity
- Ideal Temperature: 70–85°F. Growth slows below 60°F.
- Humidity: Prefers high humidity but can tolerate drier conditions with regular watering.
Growth & Maintenance
- Mulching: Apply a layer of mulch to retain moisture and suppress weeds.
- Pruning: Remove any yellow or damaged leaves to keep the plant healthy.
- Pests & Diseases: Watch for aphids, spider mites, and fungal issues. Use insecticidal soap or neem oil if necessary.
Winter Care
- In Warm Climates (Zones 8–11): Elephant ears can stay in the ground year-round.
- In Cold Climates (Zones 3–7): Dig up bulbs in fall after the first frost. Let them dry, then store in a cool, dry place until spring.
Propagation
- Division: In spring, separate offsets (small bulbs) from the main plant and replant them.
With proper care, Colocasia will produce large, tropical-looking leaves that make a dramatic statement in any garden.
Specifications
- Type: Bulb
- Species: Colocasia gigantea 'Thailand Giant'
- Size: Various bulb sizes available
- Preferred Zones: Zones 8-10 (can be grown in Zones below 8, see Zoning Notes section above)
- Exposure: Full sun to partial shade
- Growth Rate: Fast
- Planting Depth: Plant so the top of the bulb is 2-3 inches below the soil surface
- Spacing: Plant bulbs about 2-3 feet apart
- Watering: Keep soil consistently moist
- Soil: Prefers rich, well-draining soil
- Notes: Keep pets out of reach and away from the plant