How to plant the large flowered Huilan, and how to breed the large flowered Huilan?

1. Moisture: It has no special requirements for moisture, just pour sufficient water during the growing season. Water more when the temperature is hot, reduce the amount of water when the temperature is cold, and also pay attention to the water temperature not too low to avoid frostbite on the plant.

3. Sunlight: It is suitable for growing in 50% shade, and let the plant be exposed to more sunlight in early autumn, so that its flowers will be better looking and healthy.

4. Fertilizer: It has strict requirements for fertilizer, and nitrogen, phosphorus, and potassium fertilizer should be applied in accordance with the ratio of 1:1:1.

5. Precautions: When the breeding time is long, the flower soil should be changed, generally once every 1-2 years. If you keep it at home, keep it in a ventilated place.

1. Soil. Cymbidium grandiflora prefers to grow in loose, airy and well-drained soil, so it is recommended to use humus soil. In addition, a mixture of moss, fern roots, charcoal, bark blocks, broken bricks, etc., is also a very good choice.

Try not to use ordinary culture soil and culture soil of cultivated national orchid, if the drainage and exhaust effect of the soil is poor, it is easy to lead to rotten roots of C. grandiflora.

2. Watering. Adequate watering should be given during the growing season, increased watering in the hot summer and less frequent watering in the cold winter, and the temperature of the water (as much as possible consistent with room temperature) should be paid attention to avoid frostbite to plant roots. The pH value of the water used for watering the orchid is best.

3. Sunshine. In summer, when the light is strong, it needs to be shaded (large-flowered orchids do not like to be exposed to direct sunlight, so scattered light should be used), and it is best to shade about 50%. In autumn, in order to allow the plant to form flower buds and overwinter healthily, it can be exposed to more sunlight.

In winter, it needs to be placed in a greenhouse with strong sunlight and high temperatures.

Fourth, fertilizer. It is best to use a ratio of nitrogen, phosphorus and potassium in a ratio of 1:1 during the growing season

1. The fertilizer can increase the application rate of phosphorus and potassium during the flowering period. Before use, it is necessary to dilute the fertilizer solution and adjust its pH to between, 1 to 2 days in summer (water and fertilizer are applied alternately), and in other seasons it is usually applied once every 3 days, and the fertilizer is stopped in winter.

Morphological characteristics

Perennial evergreen herb with well-developed root system, the roots are mostly cylindrical, fleshy, thick and hypertrophied. Most of them are grayish-white, with no distinction between taproot and lateral root, and there is a distinct root crown at the front end. The internal structure is typical of monocots, and its cortex is relatively developed, which has the function of preventing the root system from drying out.

The plant height is 30-150 cm, the pseudobulb is stout, and it is an axial orchid.

Pseudobulbs usually have 12-14 nodes on them, and each node has cryptobuds. The size of the buds varies depending on the node position, with buds from 1-4 nodes being larger and buds above 4 being smaller. Depending on the age of the plant and environmental conditions, cryptobuds can form flower or leaf buds.

leaves clustered, bandy, leathery; There are 2 rows of leaves, and the leaf color is greatly affected by the intensity of light, which can range from yellow-green to dark green.

racemes, florets generally larger than 10, tepals 6, outer whorls 3 sepals, petal-shaped. The inner wheel is the petal, and the lower petal is specialized as the lip petal. The peduncle is extracted by the pseudobulb, each peduncle has dozens of flowers, the flowers are large, 6-10 cm in diameter, and the flower colors are red, yellow, emerald green, white, compound and other colors;

The fruit is a capsule, and its shape and size often vary greatly depending on the parent or native species. The seeds are very small, and the embryo inside the seed is usually incompletely developed, with almost no endosperm, and it is difficult to germinate under natural conditions.

When cultivating Cymbidium grandiflora, moss, fern roots, charcoal, bark blocks and organic fertilizer can be mixed to make a substrate for cultivation. During the growth period of Cymbidium grandiflora, the ambient temperature should be controlled between 10 and 25, the slightly acidic water quality should be watered when watering, and the compound fertilizer based on nitrogen fertilizer should be applied every week after the new shoots of Cymbidium grandiflora grow, and phosphorus and potassium fertilizer should be applied during the bud pregnancy period.

When cultivating large-flowered orchids, they can be cultivated in loose, breathable, well-drained soil. Moss, fern roots, charcoal, bark lumps and organic fertilizer can also be mixed to make a substrate for cultivation. After the soil preparation is completed, an appropriate amount of organic fertilizer needs to be added to the soil to improve the fertility of the soil.

Cymbidium grandiflora is suitable for growing in a semi-shady environment, and the ambient temperature needs to be controlled between 10 and 25 during the maintenance of Cymbidium grandiflora, and the temperature should be controlled between 10 and 10 at night. Note that when the room temperature is lower than 5, it is necessary to transfer the large-flowered orchid to the room for maintenance, so as to avoid the yellowing of the leaves of the large-flowered orchid caused by low temperature.

In the process of growth, the large-flowered orchid has higher requirements for water, likes slightly acidic water quality, and can choose nutritious mineral water when watering, and mixed with an appropriate amount of ferrous sulfate solution to make the water quality acidic. Note that the water needs to be dried for a period of time in winter, and the water temperature and room temperature should be consistent before watering.

After the new shoots of the large-flowered orchid grow in spring, it is necessary to apply nitrogen-based compound fertilizer or well-rotted fertilizer cake water, which can be applied once a week to meet its growth needs. In addition, phosphorus and potassium fertilizers need to be applied during the pregnancy bud period of Cymbidium grandiflora, and the fertilization can be stopped when the temperature is low in winter.