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Steve Nix

How A Tree Grows - Cambial Growth And Bud Growth

By February 12, 2013

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A tree grows in trunk diameter by adding a layer of new wood in the cambium layer of the bark every year. Each layer of new wood that is added to a tree forms a recognizable ring. The cambium produces large cells in the spring when water is abundant and growing conditions are generally good but nearly none in dormant winter.

Tree height and branch lengthening depends on elongating cells at the base of buds to create upward and outward crown growth in trees. Top growth is usually associated with a crown-tip bud and apical meristem cells and tree branch growth works in a similar way with buds at the apex of each twig.

More Tree Growth information:

Illustrated Tree Trunk, USFS Illustration


March 2, 2010 at 8:00 pm
(1) Norma Manning says:

A 120-foot tall Red Alder on an adjacent property is leaning precariously toward our house and would definitely wipe out about half of it were it to fall in a strong east wind. A 1938 photo shows it to be about 30 feet tall. How long does such a tree live, and are we justified in being concerned about the likelihood of a fall?

March 11, 2010 at 7:55 pm
(2) All is fine says:

No. don’t worry about it. You probably die of natural causes long before that tree dies. So live life in Christ, help others, and be kind to your family and neibiurs….. , we all die eventually

March 5, 2012 at 2:21 pm
(3) Paul says:

The life of a man is definitely more important than of any tree no matter how long it has lived. Get a tree specialist to check if the tree is still healthy, this will include checking if it has no heart rot or decay of any fungal origin along its stem or root parts. If the tree passes all the tests then the owner may have nothing to worry about the tree but other sources of death.

February 19, 2013 at 10:18 pm
(4) Fred says:

I would get that tree checked out by a tree professional. I would be worried about a tree that big leaning toward my house.

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