Widely cultivated in northern and southern China.
More than 50 countries in the world have introduced it.
Metasequoia glyptostroboides is a national first-class endangered plant, with a green crown, beautiful posture, beautiful leaves and yellow-brown autumn leaves, all of which are very beautiful.
Suitable for planting in clusters, rows or alone, or in pieces in the garden.
Metasequoia glyptostroboides grows rapidly and is an important greening tree species in suburbs, scenic spots and roads.
Metasequoia glyptostroboides is a deciduous tree with a height of 35 meters and a DBH of 2.5 meters.
The base of the trunk is usually enlarged, with large whorled branches and opposite branchlets.
The leaves are linear, 0.8 ~ 3.5 cm long, cross-opposite, twisted into 2 rows on the lateral branches, and fall off together with the branchlets without winter buds in winter.
Monoecious, male cones solitary leaf axils or branch tops, with short stems, or mostly arranged in racemes or panicles; Female cones were solitary at or near the top of branches in the previous year, and 1 1 ~ 14 pairs were cross-opposite, each pair had 5 ~ 9 ovules, and both the pearl scales and bract scales were zygotes.
The cone is nearly spherical, long 1.8 ~ 2.5 cm, dark brown when mature, drooping, woody, shield-shaped, oblate at the top, grooved at the base, wedge-shaped, persistent, with developed seed scales and 5 ~ 9 seeds.
Metasequoia glyptostroboides is an active, fertilizer-tolerant and adaptable tree species.
I like warm and humid climate and can tolerate low temperature above -8℃.
Suitable for fertile, moist and well-drained soil.
Water-resistant, moisture-resistant and drought-resistant, but the growth is affected by stagnant water or poor drainage.
Metasequoia glyptostroboides has a straight trunk, which is uniaxial branched, and the middle trunk is obvious. The shape of a tree is conical when it is young and broadly oval when it is old.
It germinates in early April, and April-May is the peak of new shoot growth. It still grows slowly in summer, stops growing after autumn, leaves turn yellow in late autumn, leaves fall in the first half of June for 5438+February, and the annual leaf period is about 250 days.
Metasequoia glyptostroboides is a fast-growing tree species, which grows rapidly before 15 years, and the annual growth can reach more than 1 meter. Trees grow rapidly in about 20 years, and the annual growth can reach more than 2 cm.
Metasequoia glyptostroboides is dry, usually shaped by the central leadership.
The plastic belt is controlled above 1 m, which is easy to form.
Branches at a competitive disadvantage will naturally wither because of the strong centrifugal baldness, so their "natural pruning" is good and no pruning is needed.
Because its branchlets are opposite, we should pay attention to thinning one side branch in turn from seedling stage to prevent the phenomenon of double trunk and opposite skeleton branches in the middle part.
Dry dense branches, thin branches and long branches in time to cultivate balanced skeleton branches.
The shaping, maintenance and pruning of Metasequoia glyptostroboides seedlings are carried out in winter, with maintenance and pruning for one year 1 time.
Mainly to sort out miscellaneous branches, pruning techniques are used to dry, generally do not need to change heads and cut short, and the pruning amount is small.