Curcuma - Turmeric 6"
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- Common Name: Turmeric, common turmeric, turmeric root
- Botanical Name: Curcuma longa
- Family: Zingiberaceae
- Plant Type: Perennial, Herbaceous, Annual, Bulb, Rhizome
- Mature Size: 3 to 4 ft. tall, 3 to 4 ft. wide
- Sun Exposure: Full, Partial
- Soil Type: Moist, Well-drained, Rich, Sandy, Loamy
- Soil pH: Slightly Acidic (6.0-6.5)
- Bloom Time: Summer
- Flower Color: Red, Pink, Yellow, Green, White.
- Hardiness Zones: Zones 8-11 (USDA)
- Native Area: Asia
- Toxicity: toxic to cats, toxic to dogs
Curcuma is relatively easy to grow indoors and outdoors as part of the ginger family. Depending on growing conditions, grow Curcuma as an annual or perennial summer plant. This plant does not spread quickly, so it is ideal for container gardens.
Curcuma thrives in daily sunlight, tolerating high moisture levels and at least six hours of full sun. If you live in a region with scorching temperatures, allow Curcuma to rest in the afternoon sun.
The most critical factor in Curcuma's soil is that it is well-draining. Adding a lot of organic matter like sand or clay before planting will help achieve a loamy soil consistency. Well-drained soil also helps oxygenate the plant, allowing plenty of air to flow and absorb nutrients.
Keep the soil wet to ensure Curcuma never dries out. Typically, this plant needs watering once weekly in the spring or summer. You can use less water during dormancy in the winter.
Temperature and Humidity
The best growing conditions for Curcuma are humid environments with ample rainfall—moderate to warm temperatures. Curcuma goes dormant in colder weather and will not survive past the first frost. Certain varieties, which are slightly hardier, are known to survive mild Southern winters.
Use a 20-20-20 soluble fertilizer every month. Curcuma requires a lot of nutrients, so fertilizing in the spring and summer will help encourage growth.