Osmanthus fragrans is located in the south of the Yellow River Basin, which can be directly cultivated in the open field for overwintering. In winter, potted plants should be moved indoors and kept in a sunny place, so that osmanthus can fully receive direct sunlight, and the indoor temperature should be kept above 5 degrees, and then normal management should be carried out.
Cold resistance temperature of osmanthus fragrans
The cold tolerance of osmanthus fragrans is not strong. The cold tolerance temperature of osmanthus fragrans is 0 degrees, and the minimum tolerance is-13 degrees. Osmanthus fragrans will freeze to death if the ambient temperature for its growth is below-13 degrees.
Can osmanthus spend the winter in the open air?
Osmanthus fragrans can't spend the winter directly in the open air in the north. Because the winter climate in the north is relatively cold, the temperature is generally MINUS ten degrees. Osmanthus fragrans will easily freeze to death if raised in the open air.
Key points of osmanthus wintering
1, keep warm properly.
Osmanthus fragrans has a certain cold tolerance. In the southern region, Osmanthus fragrans planted underground can overwinter in the open field. If you are in the north, you can wrap warm materials such as straw on its branches. If osmanthus trees are planted in the ground, they can be moved indoors for maintenance, and the temperature should be controlled between 5- 10℃.
Step 2 control watering
Osmanthus fragrans is not tolerant to waterlogging, and too much water will lead to root rot. In winter, the temperature is low and the water evaporates slowly. In order to make it safe in winter, it is necessary to control watering. At this time, it is best to wait until the soil is dry before watering. The water temperature is similar to room temperature.
Step 3 stop fertilizing
If you want osmanthus trees to spend the winter safely, you need to stop applying fertilizer at this time, and you can't apply any fertilizer, otherwise it will lead to excess nutrients in the soil and cause fertilizer damage to osmanthus trees. Generally, it is enough to apply decomposed cake fertilizer or organic fertilizer once before winter to meet its growth needs.
4. Adequate lighting
Osmanthus fragrans is a sunny plant. If you want it to winter safely at this time, you need to put it in a place with enough light to make it have enough light. Otherwise, if plants are left in the dark for a long time and the light is insufficient, their branches and leaves will become sparse and thin.