Tree & Shrub Basics
What Is Amber?
Learn about the formation of amber.
What Is the World's Oldest Tree?
Can you name the world's oldest tree?
What Tree Has the World's Biggest Leaves?
Learn about the tree with the world's biggest leaves.
How Can I Identify My Trees and Shrubs?
With thousands of trees and shrubs existing in nature, it's easy to see why you might not know the name of a tree or shrub. There are ways you can identify your plant and care for it properly.
What Are Plant Tropisms?
Have you ever heard the word tropism used in connection with plants? Learn what this means and the different types.
Why Is My Variegated Tree Turning Green?
Sometimes variegated trees and shrubs have a branch come out green. Find out how you can fix this problem.
What Are Chill Hours?
Learn what chill hours mean in the context of fruit trees.
Does Chewing Gum Come From Gum Trees?
Learn about the origin of chewing gum.
What is a Buckeye?
Do you know what a buckeye is in the botanical sense?
What Is a Foliar Application?
Learn what to do for a foliar application.
What Does Wet Feet Mean in Gardening?
Why should you worry about wet feet in gardening?
Types of Leaf Arrangements
Learn about the three basic types of leaf arrangements found in trees and shrubs.
Where Does Latex Come From?
Can you name the source of latex?
These videos are about shrub selection and care.
What Is a Krummholz?
Learn about the crooked trees known as krummholz.
Which Trees Have Opposite Branching?
Not many trees feature opposite branching, so this can be a key characteristic for identification. Learn which trees sport this type of branching.
Here are some videos on caring for trees.
What is the Difference Between Shrubs and Bushes?
Have you ever wondered what the difference is between shrubs and bushes? Surprisingly, the answer is "Not much."
What is the World's Largest Seed?
The world's largest seed comes from the Coco de Mer (Lodoicea maldivica)
World Hardiness Zones
Many plant profiles and guides are written with the United States of America's hardiness zones in mind. Use these maps from around the world to determine what USDA zone your country falls under.
Spring 2012 MillionTreesNYC Giveaways
If you live in New York City, grab a free tree at one of the MillionTreesNYC's giveaway.
What Are Deciduous Conifers?
Find out what makes the deciduous conifer unique.
Learn the Flower Parts
This diagram has descriptions of all of the flower parts.
Winter Tree Care
Winter is a time of rest and renewal for your trees. There are still tasks you can do during this time.
Summer Tree Care
Summer can be a stressful time for trees due to the heat and possible droughts. Make sure you are watching them diligently for signs of trouble.
Winter Shrub Care
Winter is a quieter time for shrubs. In most regions, they are in a dormant state. There is still some care you can provide, though.
Fall Shrub Care
Fall is the time to prepare shrubs for the upcoming winter. You can also plant now, using the cool temperatures and rainfall to your advantage.
What is a Subshrub?
You may have heard the word "subshrub" used to identify certain plants. Just what are subshrubs though?
Fall Tree Care
The gardening season isn't over once fall arrives, especially when it comes to trees. It's an excellent time to plant trees. Many fruits and nuts are ripening now. It's also important to start preparing for winter.
Twitter IDs for About.com Home & Garden Guides
Find out what's new by following the About.com Home and Garden Guides on Twitter, a social microblogging site.
What Is Plant Dormancy?
Learn why plants go dormant in this informative article from .Contributing Writer Jonathan Landsman
Tree and Shrub Catalogs
Why should you order from a catalog instead of just heading over to your local nursery? Selection. Many nurseries are only able to stock a certain number of varieties of trees and shrubs due to the cost of retail space. Tree and shrub catalogs present a whole new world of choices. It's also convenient if you want to just shop from home.
Find Your USDA Zone
One of the most important steps in choosing plants is making sure it is suited to your climate. Find your USDA zone using these state maps. You can then choose plants that are suggested for that USDA zone. Just click on the picture to see the full size map.
The Difference Between Trees and Shrubs
As you look at the trees and shrubs around you, you may begin to wonder about the differences between the two. When is a plant a tree or shrub? At what size is it a shrub? A tree?
Plant Nodes and Internodes
Every tree and shrub has nodes and internodes. Learn why these are important from Jonathan Landsman, our Pruning & Grafting Contributing Writer.
Difference Between Shrubs and Bushes - What Do You Think is the Diffe…
How do you define the difference between shrubs and bushes?
An image gallery depicting the typical tree shapes you may find in a landscape.
What Is Your State Tree - Map of State Trees
Use this clickable map to find your state tree. Other state symbols related to gardening are included if chosen.
What Is Your State Flower
Celebrate your heritage by planting your state flower in the yard. Click on your state to find out what it is and see a picture.