Cottonwood trees are susceptible to fungal diseases, so it is important to clean them regularly. You can use a hose to spray the tree with a water and soap mixture, or you can use a brush to scrub the tree.

There could be a number of explanations for what you are seeing. The most likely explanation is that it is cotton candy or some other type of confectionary.

It is most likely snow.

No, cottonwood trees are not native to Australia.

Cottonwood can be removed from screens by using a wire brush or a vacuum cleaner with the hose attachment.

Cottonwood is a shrub that can get up to 6 feet tall, so it can easily block air flow through an air conditioner. To keep Cottonwood out of your air conditioner, you can trim it back or use a barrier such as a metal mesh fence.

Yes, cottonwood trees can cause allergies. The pollen from the tree can cause an allergic reaction in people who are sensitive to it.

A cottonwood tree is often symbolic of growth and new beginnings.

Cottonwoods are typically medium to tall trees, with a trunk that is often straight and tall. The bark is rough, scaly, and deeply furrowed. The leaves are opposite, simple, and scale-like. The flowers are small and white, and the fruit is a small nut.

Cottonwood is not a tree, but it is a member of the willow family.

Cottonwood fluff is a type of insulation made from cottonwood tree bark and other plant materials.

Cottonwood trees typically shed their leaves in the fall, but some may shed them throughout the year.