Eulophia graminea, the Chinese crown orchid, is a species of orchid native to Asia. It often develops a pseudobulb. It is considered invasive in Florida and spreads with wood chip mulch. Flowers are green and brownish purple.
The Chinese crown orchid typically has strong disease resistance and faces relatively few insect pests. Its care is considered difficult because it needs high humidity combined with good ventilation and minimal harmful pathogens. Too much water can cause root rot. While anyone can grow the Chinese crown orchid, keeping it healthy and getting it to bloom again requires more growing experience.
How to keep Eulophia Graminea.
Light
The Chinese crown orchid benefits greatly from abundant sunlight, flourishing best when exposed to ample light levels for ideal development. This plant, which comes from sun-rich environments, can also adapt fairly well in spots with less sunlight. However, inadequate light might impede its growth, while an excess of it may cause the leaves to scorch.
Water
The Chinese crown orchid, which originates from Asia, thrives in warm, humid environments with consistent moisture. To support its growth, water the plant weekly. When grown indoors, it is important to carefully monitor the soil's moisture levels, as extremes can impact its ability to flower.
Temperature
The Chinese crown orchid thrives in conditions where the temperature typically ranges from 68 to 100.4 °F (20 to 38 ℃). In order to recreate its natural environment, you should keep this temperature stable throughout the entire year.
Fertilizer
The health and appearance of the Chinese crown orchid greatly depend on appropriate fertilization. During the summer, it's essential to fertilize the Chinese crown orchid on a monthly basis. These nutrients play a vital role in supporting growth and sustaining the plant's components. By fertilizing, the flower display of the Chinese crown orchid is improved, guaranteeing optimal blooms.
Pruning
To help the Chinese crown orchid thrive, regular pruning is essential, focusing on removing dead leaves and spent flowers. The best time to do this is from early to late spring, as it encourages new growth and blooming. Make sure to use clean, sharp tools to prevent diseases, and avoid over-pruning to minimize stress on the plant.
Botanical profile.
- Plant Type
- Herb
- Life Cycle
- Perennial
- Genus
- Eulophia
- Family
- Orchidaceae
- Hardiness Zone
- 9-11
- Mature Height
- 61 cm to 76 cm
- Mature Spread
- 30 cm to 46 cm
- Leaf Color
- Light Green
- Leaf Type
- Deciduous
- Flower Color
- White, Pink, Green, Purple
- Flower Size
- 20.32 cm to 39.62 cm
- Bloom Time
- Late spring, Summer, Early fall
- Planting Time
- Spring, Summer, Autumn
- Harvest Time
- Late summer, Fall
- Native Area
- Nepal, Sri Lanka, India, Malaysia, Philippines, Bangladesh, Pakistan, Laos, Brunei, China, Indonesia, Cambodia, Vietnam, Myanmar, Japan, Bhutan, Thailand
Other names.
Reader questions.
What are the sun requirements for Chinese crown orchid?
The Chinese crown orchid thrives best under ample sunlight, requiring more than 6 hours of sunlight daily (full sun) for optimal growth. It can also manage in partial sun, which is about 3-6 hours of sunlight. However, it's crucial to watch the movement of sunlight through your garden to ensure the plants receive a balanced mix of light and shade, as this greatly influences their health and happiness.
What is the ideal temperature range for Chinese crown orchid?
The ideal temperature range for the Chinese crown orchid (Eulophia graminea) is between 68 to 100.4°F (20 to 38°C). To ensure the plant thrives, it's important to maintain this temperature range throughout the year. During winter, if the temperature drops below 0°C, it's recommended to bring the orchid indoors and maintain a temperature above 20°C. Positioning the plant near a south-facing window can provide ample sunlight, and using a humidifier or misting the orchid regularly will help maintain the necessary humidity levels.
How does artificial lighting benefit indoor Chinese crown orchids?
For indoor Chinese crown orchids or when natural sunlight is scarce, artificial lighting provides an essential solution. It supports their growth, especially in winter or less sunny locations. LEDs are favored for indoor plant lighting as they can be tailored to emit specific light wavelengths needed by plants. Full sun plants require 30-50W/sq ft of light, partial sun plants need 20-30W/sq ft, and shade-loving plants need 10-20W/sq ft. Positioning the light source 12-36 inches above the plant for 8-12 hours a day mimics natural sunlight conditions, promoting healthier and faster growth.
How should you care for your Chinese crown orchid during winter?
During winter, it's crucial to protect the Chinese crown orchid from low temperatures. If winter temperatures are expected to fall below 0°C, the orchid should be brought indoors to prevent cold damage. Maintain indoor temperatures above 20°C and ensure the plant receives sufficient sunlight by placing it near a south-facing window. Regular misting or use of a humidifier can help maintain humidity levels. For orchids that need to remain outdoors, providing shelter, sunlight, and possibly utilizing a temporary greenhouse or wrapping the plants with plastic film or fabric can offer additional protection against cold weather.
What are the symptoms of insufficient lighting in Chinese crown orchids?
When Chinese crown orchids don't receive enough light, several symptoms may appear. These include smaller new leaves, leggy or sparse growth, faster leaf drop, slower or halted growth, paler new leaves, and conditions like chlorosis, sunscald, leaf curling, wilting, and leaf scorching. These symptoms reflect the plant's struggle to adapt to low light conditions, indicating the need for better light management.
What should you do if your Chinese crown orchid experiences low temperatures?
If your Chinese crown orchid is exposed to temperatures below its tolerance, showing signs such as extensive water-soaked necrosis, wilting, and drooping, it's important to act quickly. Trim off any frostbitten areas to prevent further damage. Move the plant to a warmer environment indoors, ensuring it's placed near a south-facing window for ample sunlight. Additionally, keep the plant away from direct heat sources like heaters or air conditioning vents to avoid excessively dry conditions that can harm the orchid.
What are the solutions for inadequate sunlight exposure in Chinese crown orchids?
To address insufficient sunlight, gradually move plants to sunnier spots, ensuring at least 6 hours of sunlight daily. For indoor plants, use south-facing windows or artificial lights, keeping them on for at least 8 hours daily. Outdoors, adapt plants gradually to sunnier spots to prevent sunburn. Minimize obstructions by pruning trees or relocating plants to sunnier areas. For small, transplantable plants, move them during their dormant period to a location with better sunlight and drainage. Remember, while parts of the plant affected by low light may not recover, new growth should flourish under improved lighting conditions.
How do you care for a Chinese crown orchid in high temperatures?
When temperatures exceed the Chinese crown orchid's upper threshold of 38°C, particularly if they reach or exceed 43°C, the plant may stop growing, and its leaves can wilt. To protect against high temperature stress, trim away any sunburned or dry parts of the plant, and relocate it to a spot that is shaded during the midday and afternoon sun. Watering the orchid in the early morning and evening helps keep the plant and its surroundings moist, reducing the risk of root rot and sunburn.
