Why Do Some Trees Grow in Spirals? - Save the Redwoods League
2013年6月5日 · Learn why some trees grow in spirals and how this affects their strength, flexibility, and water distribution. Explore the possible explanations for spiral grain, from genetics to wind, and see examples of spiral-grained trees in the woods.
Are your evergreens looking yellow or brown? This might be why…
2014年12月8日 · Learn why your evergreen tree might be losing needles or turning yellow in winter and how to tell if it's healthy or not. Find out the differences between needle cast, sun scald, and freeze damage and what to do about them.
How to Grow and Care for Corkscrew Willow - The Spruce
2024年9月18日 · The corkscrew willow, also known as the curly willow, is a fast-growing but short-lived tree known for its kinked foliage that drops to expose bare, twisted, and contorted twigs, bringing winter interest to the landscape. A corkscrew willow thrives in temperate and cooler regions but does poorly in hot, humid climates.
Spiral Evergreen Tree Varieties - Weekand
2012年9月8日 · The straight Italian cypress is an extremely narrow green tree reaching heights of 100 feet but rarely exceeding a width of 3 feet. The variety 'Swane's Golden' has yellow new growth, and 'Tiny Tower' is a slow-growing green dwarf. All of these plants are suitable for spiraling because of their upright habits.
What could cause spiral tree growth? - Biology Stack Exchange
2015年9月3日 · The damage-tolerance explanation states that in trees with straight grain, the leaves (or needles, etc) have water delivered to them, via the xylem, from the roots on the same side of the trunk. In spiral-grained trees with several years of growth, water and nutrients from a given root can be transported to branches on all sides of the trunk.
21 Types of Aloe Plants: Identification and Care Tips - The Spruce
2024年6月28日 · Flowers are often tubular in shape and yellow, orange, pink, or red. They range from tiny ground-hugging species to those the size of small trees. Here, learn about 21 types of aloe with tips to identify each variety and care for it in your garden. All aloe plants, part of the Liliaceae family, are toxic to animals.
Why do some trees grow in spirals? Local hiker solves mystery
Trees with spiral grain grow in windy or uneven areas to strengthen their branches and deliver sap and food. Learn how to identify and find these natural oddities in Washington forests from a...
Why Do Trees Form Spiral Grain?: The Gymnosperm Database
2024年1月29日 · Spiral grain is the helical form of xylem tissues in trees, often caused by wind, gravity, or asymmetrical crown. Learn about the factors that affect spiral grain direction, rate, and reversal, and how it affects wood quality and strength.
Spiraling Into Form | Science - AAAS
2004年5月3日 · Sunflower petals, pinecone spears, cacti spines, and tree leaves all form whorls in sets of spirals. Now, researchers explain how the laws of physics force spirals to develop in triples with special mathematical relationships.
Pine Tree Needles Turning Yellow - Gardential.com - Small …
2021年9月1日 · Learn the possible reasons for pine tree needles turning yellow, such as natural causes, sunscald, overwatering, transplant shock, nutrient deficiencies and pest infestation. Find out how to treat and prevent these problems and some interesting facts about pine trees.