Acorns, the seeds of oak trees, fall off their parent trees when they mature, which typically occurs between September and early November in the United States. The exact time of maturation varies slightly with different types of oak trees.
A:Apple trees should be trimmed to encourage their health and growth, according to the Oregon State University Extension Service. The service says that while the trees can be trimmed any time of the year, it is best to do so in late winter, right before spring begins.
A:Historically, the olive tree was a symbol of peace. This connotation began in ancient Greece as early as the fifth century BCE. In the Bible, olive branches were used regularly to signal the end of a conflict or the approval of a higher power.
A:Border shrubs are plants that are chosen for their tall height and fullness, which provide a living privacy fence along a property border. Some common flowering border shrubs are hydrangeas, rhododendrons, viburnums and weigelas, according to Martha Stewart.
A:A good rule of thumb is to plant a tree away from the house at a distance equal to one-third to one-half the maximum tree height. Therefore, how far one plants a tree from a house depends on the tree's potential height when fully matured and its habit.
A:Considering that trees grow throughout their lives, a tree reaches its full-size on the day it dies. A white oak tree can reach its full size after three centuries while a redbud tree reaches its full-size when it's about 20 years old.
A:According to SFGate Home Guides, published by the San Francisco Chronicle, a number of factors can contribute to the death of a weeping willow tree. First make sure that the weeping willow is planted in a USDA-approved plant hardiness zone where it can survive and thrive, which are zones 6 through 9. Willows require plenty of water to survive, which means a location near a lake, river or wetlands.
A:Some tools used to prune trees are loppers, saws and pruners, states The Home Depot. The primary kinds of pruners are bypass, ratchet and anvil, with each having a different blade. Bypass pruners have two curved blades that function like scissors and are the most commonly used pruners.
A:A pine tree does not need constant watering unless it is freshly planted, in which case it needs water two to three times a week for a year. Fully grown pine trees capture most of the moisture they need in their soil.
A:The weeping willow is a tree with characteristic long branches that arch toward the ground. You need to trim this tree regularly to keep it strong and healthy. Simply disinfect the pruning tools, remove dead and broken foliage, remove the suckers, and shape the remaining branches.
A:Planting a tree from a seed pod is a delicate process and depends on the species of the tree; most seed pods require either scarification or stratification in order for germination to take place. Germination of tree seed pods happens in nature only under particular circumstances. The key to artificial germination is to recreate those circumstances.
A:Rainbow eucalyptus is a species of eucalyptus tree that is known for its multicolored bark. Known by the scientific name Eucalyptus deglupta, rainbow eucalyptus can also be known by the common names of Mindanao gum or rainbow gum. The multicolored bark tones include shades of green, blue, orange and purple.
A:The best time of year to trim apple trees is right before spring as winter ends, according to the Oregon State University Extension Service. Because the most severe and cold weather is finished, fresh cuts are not subject to ice damage, and the timing to start new growth is good.
A:In autumn, the earth receives less sunlight and warmth, which results in trees preparing themselves for the upcoming winter weather. The changes in weather trigger hormonal changes in trees. When this happens, leaves change color and abscission cells cut the leaves off of branches. This results in the falling of leaves in autumn.
A:While there are several ways to grow bamboo from cuttings, culm or stalk cuttings propagate new plants in about six weeks. For the best results, SFGate recommends keeping your cutting in a warm, moist environment until it roots.
A:The fertilizer used for arborvitae should consist of a higher nitrogen concentration than the other nutrients. The first number that appears on the label of the fertilizer should be double the second number, as in 20-10-5 or 12-6-6.
A:Lemon trees may grow in containers. However, lemon trees grown in pots are generally smaller than trees grown from the ground. Lemon trees from containers usually bear fruit earlier. Varieties like the Ponderosa dwarf or Meyer improved dwarf are excellent choices that allow an owner to move the trees indoors once temperatures begin to drop below 50 degrees Fahrenheit.
A:Shrubs are woody plants with multiple stems and are generally smaller than trees. Examples of shrubs include boxwood, roses, rhododendrons and azaleas, mountain laurel, jasmine and juniper. Shrubs are used to add interest and texture to residential and commercial landscapes and are often grown for their edible fruit. Blackberries and raspberries are two examples of shrubs that produce edible berries.
A:A count of the number of rain forests left in the world is not available, but as of 2014, rain forests account for less than 2 percent of the Earth and are habitat for 50 percent of animals and plants. Several thousand years ago, rain forests covered about 12 percent of the Earth, or 6 million square miles. The largest continuous rain forest is near South America's Amazon river.