The blooming period of gardenias
This article shares some small life experiences about the blooming period of gardenias, as well as some gardening tips related to the flowering season of gardenias. Let's explore these topics together.
The blooming period of gardenias is relatively long, lasting from May to August. Each flower can remain open for 3-5 days. The blooming period may vary depending on the region and climate. Below is a detailed introduction to the cultivation methods and precautions for gardenias.
I. Cultivation methods for gardenias
1. Potting soil
When growing gardenias, it is essential to prepare slightly acidic soil. Alkaline soil can prevent the plant from absorbing iron, which hinders the normal formation of chlorophyll, leading to dried and withered leaves and branches. A mixture of equal parts of sandy loam and peat soil can be used as potting soil.
2. Light and temperature
Gardenias prefer shade. During the summer and early autumn, when the sun is intense, they need to be shaded appropriately. The optimal growth temperature is between 18-22 degrees Celsius. They can safely overwinter at temperatures between 5-10 degrees Celsius, but may suffer frost damage below -10 degrees Celsius.
3. Water and fertilizer management
Gardenias enjoy moisture but cannot tolerate waterlogging. Besides keeping the potting soil moist, it is also necessary to frequently spray water on the plants to increase humidity. After the buds appear, water should be controlled appropriately to prevent bud drop. Starting in April, fertilize every 10-15 days with a dilute fertilizer, adding phosphorus and potassium fertilizers during the flowering period, and stop fertilizing after winter.
4. Propagation methods
Common propagation methods include cutting and layering. Cuttings are done during the plum rain season, using 15 cm long tender branches and planting them in potting soil, which can take root in about 10 days. Layering is done in April, using 20-25 cm long branches from two-year-old plants, which are buried in the potting soil and can take root in about 30 days.
II. Precautions
1. After gardenias form buds, the buds are usually quite dense and need to be thinned out to prevent bud drop.
2. If gardenias do not bloom, it may be due to unsuitable soil or insufficient fertilizer. Specific improvements should be made based on the situation.
3. In the summer, it is prone to leaf spot disease, yellowing disease, and scale insects. You can purchase pesticides for control and isolate them from healthy plants.
4. When the main stem reaches about 20 cm in length, you can perform topping to force the plant to produce lateral branches and shape the plant.
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