Is osmanthus an evergreen or deciduous plant?

Every autumn, the fragrance of sweet-scented osmanthus is overflowing. It is one of the top ten famous flowers in Chinese tradition. It is an excellent ornamental and practical garden tree species integrating greening, beautification and fragrance. So, is sweet-scented osmanthus evergreen or deciduous?

Is sweet-scented osmanthus evergreen or deciduous?

Sweet-scented osmanthus is an evergreen plant, belonging to Oleaceae evergreen shrubs or small trees, but it will also lose leaves, but the leaves will not be finished in winter.

What are the cultivation techniques of sweet-scented osmanthus?

1. Planting method

It should be planted in spring or autumn, especially on cloudy or rainy days. Choose in a well-ventilated, well-drained and warm place with sufficient light or semi-overcast environment. Transplanting should play a good soil ball to ensure the survival rate. Planting soil is required to be acidic and avoid alkaline soil. The ratio of potted sweet-scented osmanthus potted soil is 2 parts of rotten leaf soil, 3 parts of garden soil, 3 parts of sandy soil and 2 parts of rotten cake fertilizer. Mix them evenly, and then put them on the pot or change the pot, which can be carried out before sprouting in spring.

2. Light temperature

It can be cultivated in open field to survive the winter in the south of the Yellow River basin. The potted plant should be moved indoors in winter and placed in a sunny place to fully accept direct sunlight. Keep it above 5 ℃ at room temperature, but not more than 10 ℃. After sprouting in April of the following year, it was moved to the outdoors, first maintained in the leeward to the sun, and then gradually moved to a ventilated sunny or semi-overcast environment after stable growth, and then carried out normal management. Lack of light during the growing period affected flower bud differentiation.

3. Watering and fertilization

Before planting, the tree hole should be mixed with herbal ash and organic fertilizer, and watered once after planting. Keep the soil moist and do not water the soil before the new technology is issued. Generally, nitrogen fertilizer is applied once in spring and phosphorus and potassium fertilizer is applied once in summer to make flowers bloom and flourish. Overwintering organic fertilizer is applied once before winter, mainly rotten cake fertilizer and barnyard manure. Avoid thick fat, especially faeces and urine. Potted sweet-scented osmanthus in winter in the north should enter the low-temperature greenhouse, pay attention to indoor ventilation and light, less watering. After leaving the house in April, the amount of water can be increased appropriately, the right amount of light fat water can be irrigated in the peak growing season, and the fertilizer and water can be slightly thicker in the flowering season.

4. Shaping and pruning

Depending on the tree, set the large frame according to the posture of the tree, and remove other gourd tillers, overdense branches, overgrown branches, cross branches, diseased and weak branches to make it ventilated and transparent. For those who are strong in tree strength and weak in tree strength, the upper branch can be cut short by 1 × 3 to make the whole tree strong, and at the same time, the wound can be protected by applying healing and anticorrosive film at the pruning mouth.

Sweet-scented osmanthus not only has a beautiful tree shape, but also has a refreshing fragrance. You might as well plant one or two plants in your own yard.