Gardenia has green leaves and white flowers, which many people like, but in Shandong, North China, the lowest outdoor temperature in winter is generally-13? Gardenia, as a flower in the south, can't live? The answer is no, here is a brief talk about how to raise gardenias in the north according to your own experience:

I. Potted soil

Directly using vegetable garden soil or wheat field soil grows well. You don't need any kind of soil, as long as it is breathable, fertile and drained. Individuals can do it according to actual conditions.

Second, the temperature

20-25 degrees in summer is the best growth and development period of gardenia, and 26-28 degrees is the best temperature for flowering. Generally, gardenias in four or five years are occasionally at a low temperature of -3 degrees, but at MINUS 5 degrees, the leaves will turn black and fall off, and the shoots will basically not live. In winter in the north, gardenias should be moved into the house, and the temperature should be kept at 6- 10 degrees, not lower than 0 degrees. If the indoor temperature is higher than 15 degrees, you can open the window facing south to cool down properly, otherwise the gardenia may sprout new branches and it will be difficult to bloom in the next year. You can give gardenias some sunshine and apply some thin fertilizer.

Third, light.

Gardenia loves light. Try to give gardenia enough light for more than 8 hours in spring and autumn. Be careful not to be exposed to the sun at noon in summer, or the leaves will turn yellow. Generally, it should be maintained in the place where scattered light shines. Move indoors to the south of Chaoyang in winter.

Fourth, water.

Gardenia needs to be watered more in summer, because gardenia needs a lot of water in summer. Generally, water it 1-2 times a day, and water it less in spring and summer. Generally, the leaves droop slightly before watering.

Verb (abbreviation for verb) fertilization

When changing pots in spring, add decomposed organic base fertilizer once, then bury a little organic compound fertilizer in the soil next to the pots every week, and stop fertilization in mid-September.

Six, choose the heart and shape

In spring, when the vigorous growth of gardenia will stop after it blooms, the new branches should be taken off, so as to keep the plant beautiful and promote flowering. But in autumn, you can't pick your heart again, otherwise it will affect the next year's flowering.

Seven, pests and diseases

The pests and diseases of gardenia generally include red spider, scale insect, aphid, whitefly and so on. Dichlorvos and pyrethroids can be used interchangeably.

In addition, the flowerpot of gardenia should not be too big, because it is too big to water in winter, which is very unfavorable to winter.