#9: Growing Tall

HAVE YOU EVER THOUGHT ABOUT HOW TREES GROW?

Trees grow from the tippy-top of the tree (called the the apical meristem) to reach for the sun. Trees grow from the tips of branches to grow out to reach the sunlight and spread their seeds farther. And, trees grow from the tips of their roots to reach water and nutrients. 

TREES KEEP GROWING UP FOR MOST OF THEIR LIVES.

What makes a tree grow tall? And do trees ever stop growing? Explore how photosynthesis and gravity can affect and limit the height of trees.

Video Courtesy of TED-Ed

The 5 Tallest Tree SPECIES in the World

"Raven's Tower" (Sitka Spruce) - 317 Feet

The Raven's Tower is a sitka spruce - a coniferous evergreen - located in the Prairie Creek Redwoods State Park, also in California. However, the exact location of The Raven's Tower is disclosed to protect it from visitors and vandals. Prairie Creek was first established in the 1920s precisely to protect these trees. It houses a few other giants like the Corkscrew Redwood and the Cathedral Trees. it hasn't been measured since. It is known to have an intricate system of roots and plants growing on it well above ground level, and though this seems bizarre, the damp climate and immense width of the tree makes it possible!

"Menara" (Yellow Meranti) - 320 Feet

Called ‘Menara’ (Malay for ‘tower’), the giant tree was first spotted by an international team of researchers in 2018 on the island of Borneo. Excluding roots, Menara weighs 81,500 kg, or more than the maximum takeoff weight of a Boeing 737-800. Only 5% of its mass is held in its 131-foot (40 m) wide crown, whereas 95% is in its trunk.

"Doerner Fir" (Douglas Fir) - 327 Feet

Doerner Fir, also known as the Brummitt Fir, is among the tallest non-redwoods ever discovered. It is a Coast Douglas-fir, estimated to be more than 500 years old, standing on the east side of Coos County in Oregon. The Doerner Fir was first measured back in 1991, found to stand at 329 feet. When it was later measured in 2008, it lost two feet and measured 327 feet.

"Centurion" (Mountain Ash) - 330 Feet

This tree is not located in the United States, but in Arve Valley in Australia. Centurion is currently the second tallest tree around the world, and the tallest non-redwood. The largely popular Eucalyptus regnans tree narrowly beats the Doerner Fir. It was discovered in August 2008 by Forestry Tasmania employees. Despite the bush fires raging in the Tasmanian state in 2019, Centurion managed to survive, but not without suffering damage.


"Hyperion" (Redwood)- 380 Feet

Hyperion is a coast redwood (Sequoia sempervirens) in California that was measured at 115.85 m (380.1 ft), which ranks it as the world's tallest known living tree. Hyperion was discovered August 25, 2006, by naturalists Chris Atkins and Michael Taylor. The tree was verified as standing 379.1 ft tall. The tree was found in a remote area of Redwood National and State Parks purchased in 1978. The Park also houses the second tallest tree Helios, and the third tallest Icarus. Sillett estimates Hyperion to be 600 years old while others report it to be roughly 700–800 years old.

Measuring the Height of Trees (WITHOUT CLIMBING)

Watch the video below to find out how to measure the height of a tree by using shadow measurements.

HOW DO TREES TAKE IN NUTRIENTS & WATER?

Trees roots also grow so they can reach farther  under ground for more water and nutrients  (nutrients are like vitamins for trees). Trees pull water from their roots to their leaves by using capillary action. You can discover how capillary action works by trying out the experiment in the video below.

Video Courtesy of JoJo's Science Show

fIND A BIG TREE NEAR YOU


Look around your neighborhood.

What is the tallest tree near you?


You can learn more about the trees near you with THIS cool map from the City of Tacoma.

how much do you grow?


Trees aren't the only thing that grow. You grow to!


How much have you grown in the past month?

How much will you grow in the next month?

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