Analysis of the Reasons Why Orchids Are Not Fragrant
This article answers questions about orchids and the reasons why they might not be fragrant, and it will take everyone to understand together.
Many orchid enthusiasts are frustrated that their orchids are not fragrant. In fact, besides the variety reasons, the daily maintenance methods also have some relationship with the lack of fragrance. This article summarizes some reasons for the lack of fragrance in orchids. First, orchid enthusiasts need to know that the fragrance of orchids is different from the strong fragrance of flowers like hyacinths and lilies. Orchids should not be smelled too closely, as they are not very fragrant up close, but they emit a faint fragrance when there is air circulation.
Here are some reasons why orchids might not be fragrant. Orchid enthusiasts can compare and investigate according to their own situations.
1. Variety Degradation: Due to interplanting or placement near non-fragrant varieties, interference from non-fragrant pollen, or proximity to pollution sources, the nectar glands can become disordered and eventually degenerate, thus unable to emit the fragrant nectar.
Solution: Prevent degradation, stay away from pollution sources, and do not mix non-fragrant varieties and other orchids of the same blooming period to prevent natural hybridization and degradation.
2. Insufficient Lighting: Due to the shade-tolerant nature of orchids, they are often mistakenly believed not to require light and are kept in indoor or high-density shaded conditions, preventing them from getting the energy needed for photosynthesis. Even with a small amount of scattered light, orchids can only produce a small amount of organic matter to maintain survival, not to mention accumulating nutrients to supply the nectar glands with nectar.
Solution: Adjust lighting. In winter and spring, full sunlight is acceptable, while in summer and autumn, half-shade (50%-60% shading) is recommended to allow for scattered or diffused light. However, avoid moving them outdoors. For indoor cultivation, use a 40-watt fluorescent lamp to illuminate for about 5 hours around noon, or move them occasionally to a window sill with moisture and evening sun.
3. Lack of Fertilization: Although orchids do not require much fertilizer, neglecting to fertilize can lead to a deficiency, causing yellowing leaves, falling flowers, and buds, which is very harmful to their growth and development, thus the nectar glands cannot produce fragrant nectar.
Solution: Apply more phosphorus and potassium fertilizer. During the growing period, the ratio of phosphorus, potassium, and chlorine fertilizer should be 3:1.5:0.5. In the early stage of flower bud differentiation, the ratio of nitrogen, phosphorus, potassium fertilizer should be 0.5:3:2:3. Around the autumnal equinox, more diluted organic liquid fertilizer can be applied.
4. Low Temperature: Among the varieties that bloom in winter and spring, such as cold orchids, black orchids, spring orchids, and evergreen orchids, fragrance cannot be emitted when cold currents cause temperatures to drop below 0 degrees Celsius, and the nectar freezes. However, the fragrance can be emitted when the temperature rises or after temperature adjustment.
Solution: Adjust the temperature. The blooming period of cold orchids, black orchids, and spring orchids is easily affected by temperatures below 0 degrees Celsius, causing the nectar to freeze and the fragrance not to be emitted. The temperature should be adjusted to above 5 degrees Celsius.
This is the full content of the analysis of the reasons why orchids are not fragrant, hoping it can help you. Also, I hope everyone comes to see more green plant and flower experience and common sense!