The flowering time of tulip is from March to April every year, and its flowering time is about 3-5 months. The growth and flowering period of tulips under natural growth is from November to march of the next year, and the blooming period is around the Spring Festival.
The time from blooming to falling is about one week.
After the bulbs of tulip are harvested in the middle and late June of each year, they can be placed at 34 ℃ for about one week. Then gradually reduce the temperature, 17-20 ℃ under the condition of 50-55 days, which can promote the flower bud differentiation.
The temperature of 7-9 ℃ is suitable for cold storage. It can be planted from late September to early October every year, and can bloom in December.
The bulbs are harvested from June to July every year. First, the bulbs are placed at 17-20 ℃ for differentiation, and then they are refrigerated at 9 ℃ for 1 week. The flowers planted in September will bloom in February of the next year.
The bulbs received in July of each year can be stored for about 50-55 days in 23 ℃ environment, and then stored for 1 month in 20 ℃ environment. When they are cool in autumn, they will be placed in 17 ℃ temperature until November for planting, and they will bloom at the end of March.
