What does orchid vernalization mean_Boosting bud growth
In relation to the topics about orchids, which are often discussed by most people, what does orchid vernalization mean_Boosting bud growth. If there are any mistakes, please feel free to correct them!
Raising orchids is a profound study, especially for新手 orchid enthusiasts, there is a lot to learn. For example, some orchid enthusiasts may not know what orchid vernalization means. Orchid vernalization refers to the low-temperature process that orchids must undergo during their reproductive growth, simply put, it is a low-temperature treatment. The spring bloom of orchids plays a significant role in promoting bud growth, and the timing of orchid vernalization varies greatly depending on different regions.
Different orchid varieties have different requirements for vernalization temperatures. For example, Cymbidium, Dendrobium, and Cypripedium do not require special low-temperature vernalization to bloom naturally, but for Cypripedium, the temperature from the bud stage to flowering, and during the flowering period, should ideally be between 10-15 degrees Celsius. Too low or too high temperatures can easily cause Cypripedium to produce僵苞 (stiff buds) or 消苞 (bud drop). Even if they manage to open, the quality is far from ideal, and the aroma is significantly reduced.
Many orchid enthusiasts wonder when is the best time to vernalize orchids with buds? For orchid enthusiasts in orchid-producing areas, they don't need to worry too much and can follow nature (except for controlling flowering for exhibitions). For northern orchid enthusiasts, they need to choose the right time. Usually, when the buds have grown about 3-4 centimeters above the ground, stopped growing taller, and the development is slightly round and plump, vernalization can begin as long as the temperature is appropriate (4-10 degrees Celsius) for the vernalization process.
The ideal temperature for the vernalization period is between 4-10 degrees Celsius. Too low or too high temperatures can have a certain impact on the growth, bud formation, and nutrient accumulation of the buds. The humidity should not be too high, as it can easily cause root and bud rot. Therefore, it is best to keep the conditions slightly dry and delay watering.
The duration of vernalization is for reference only, of course, the more thorough the vernalization, the better. Usually, spring orchids require 30-40 days of vernalization. Spring orchids in the Yunnan-Guizhou-Sichuan area have lower vernalization requirements and are relatively easy to manage, and some can even bloom without vernalization. In the Jiangsu-Zhejiang area, it is better to extend the vernalization period appropriately due to geographical and climatic factors. For spring sword orchids, 40-50 days is ideal, while for Huai Orchid and Spring Orchid, it is best to have more than 60 days. To achieve the effect of vernalization and nutrient accumulation in orchids, it is recommended to spray a solution of potassium dihydrogen phosphate 1000 times on the leaves before vernalization, then start vernalization. This promotes nutrient accumulation, resulting in larger and more vibrant flowers. Avoid applying nitrogen fertilizer during the vernalization period, as the low vernalization temperature prevents orchid seedlings from absorbing nitrogen fertilizer, which can easily cause fertilizer damage and root rot.
After vernalization, water thoroughly (avoiding water in the buds, to prevent bud rot), and place the orchid pot in a place with a temperature of about 15 degrees Celsius for 1-2 days, then transfer to normal room temperature. This can effectively prevent heat-induced僵苞 (stiff buds) and 消苞 (bud drop). After transferring to normal room temperature (18-24 degrees Celsius), the flower stalks usually grow rapidly (except for certain varieties), and flowers bloom in about 5-15 days.
Watering after vernalization should be handled appropriately for different planting materials. For flowers with petal shapes (such as lotus petals, plum petals, narcissus petals), and colored flowers (such as red, golden yellow, pink), it is best to keep the planting material slightly dry before and after flowering, as this results in more ideal petals and color, otherwise, the petals will quickly elongate, the color will fade, and the aroma will also decrease (after vernalization, for colored flowers, it is best to keep the flowering period slightly cooler, as the color will be better). For odd flowers, the opposite is true, especially for multi-petal odd flowers. Keeping them moist will prevent some small petals from appearing semi-dehydrated and lackluster when flowering. Sufficient water will make them bloom more beautifully and vividly.
This shallow discussion hopes to be helpful to new orchid enthusiasts. Any shortcomings are sincerely open to corrections from experienced teachers.
Have you understood the detailed introduction of what orchid vernalization means_Boosting bud growth shared above?