Tulip Tree Growth Rate Per Year
Tulip Tree Growth Rate Per Year. The tulip tree (Liriodendron tulipifera), also known as the yellow poplar, grows to a height of up to 200 feet with a diameter of up to 10 feet. A deciduous tree, it produces yellow tulip-shaped blossoms that measure up to 3 inches in length from May to June.
The tulip tree (Liriodendron tulipifera), also known as the yellow poplar, grows to a height of up to 200 feet with a diameter of up to 10 feet. A deciduous tree, it produces yellow tulip-shaped blossoms that measure up to 3 inches in length from May to June.
Seedling Growth
During the tulip tree's first three years of life, seedlings average 1 foot of growth per year. Seedlings started on areas that have suffered a fire grew more rapidly and averaged 3 1/2 feet in three years, according to the U.S. Forest Service's website. Once a seedlings tops 3 or 4 inches in height, it generally will reach maturity.
Considerations
Seed production begins when the tree reaches 15 to 20 years of age. The tulip tree will continue to produce seeds for approximately 200 years. Unfortunately, the tulip tree's seeds have low viability of only 5 to 20 percent. Fertile seeds can remain viable for up to eight years before germination begins.
Warning
Tulip tree seeds require a period of cold stratification before germination growth will begin. If the seeds are kept at 36 degrees Fahrenheit for 140 days, the rate of germination can be increased to 90 percent, according to the U.S. Forest Service's website. The seeds must be kept consistently moist to grow.
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