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Dogwood in California

Q: Just a month ago, I bought a Cornus Florida "Rubra" plant from my local nursery and have planted it on a small sloping bed on the east side of the house. It it gets only morning sun up to about 1 pm as it gets very hot (>100) in summer. It is about 5 feet from my house corner.

Is this a proper location? If I moved it anywhere else it will face the hot sun in the afternoon. I'm not sure if it'll handle that. Please advise.

Also, I've been watching and all the leaves on the many branches have been successively drying up even though the bed receives water everyday drip system 10 minutes/day and being sloping with added top soil, drainage is not a problem here. The temp has just gone up to 90 only last couple of days, however, it has been extremely windy all day this past week (wind gusts upto 40 mph) can this be the problem?

A: My office has a dogwood just three feet out my window and facing west (in Alabama). It is doing just fine even in our killer southern summer afternoon sun. Still, we rarely get 100 degree weather for long periods (but 90 degrees often). My main concern is your tree planting zone. Dogwood will have a problem when the tree planting zone is higher than 8a.

If your local nursery is honest and reliable, they will not try to sell plants out of your local zone. You might want to ask them these same questions or see if any dogwoods are growing in your community. Also, call your local agricultural cooperative extension service for more information.

High winds will definitely "burn" tree seedling foliage. It usually does not immediately kill the tree but will cause leaf loss, top kill and root sprouting.

Wild Flowering Dogwood in Spring - Photo by Steve Nix, Licensed to About.com

Saturday May 17, 2008 | permalink | comments (0)

How to Manage and ID Japanese Maple

Japanese maple is one of the most versatile trees for any yard, patio or garden and can be planted though out several broad hardiness zones in the United States. Often grown for its unique 7-palmed green or red colored leaf, the maple also has an interesting growth habit with a fine leaf texture and muscular-looking multiple trunks.

Horticulturist and university professor, Dr. Mike Dirr, in Hardy Trees and Shrubs, says Japanese maple is in an enviable class of "tree aristocrats". "It is difficult to imagine a garden that could not benefit from one of the many forms of Acer palmatum". David Beaulieu, About's Landscaping Guide praises Japanese maple trees for their foliage throughout the growing season but that the tree can be exceptionally beautiful in the fall.

"Crimson Queen" Japanese Maple - Courtesy Missouri Botanical Garden

Thursday May 15, 2008 | permalink | comments (0)

Discussion: Trees with Lavender Flowers Everywhere

"When coming back, this week, from Myrtle beach, I spotted several trees that were leafless but had beautiful light blue to lavender flowers on them. The trees were about the size of dogwoods, or a little larger, but were more upright in manner rather than spreading...I would very much love an identification of this tree." - JAB

Most probably this person has seen Royal paulownia or princesstree. We are in the middle of the tree's peak blooming season along the Eastern Seaboard. More on Royal paulownia: Royal Paulownia - 100 Most Common North American Trees
Royal Paulownia - Virginia Tech Dendrology
Wednesday May 14, 2008 | permalink | comments (4)

Tree Fertilizing Basics

Ideally, growing trees should be fertilized throughout the year. The greatest amounts should be applied during the early spring and summer months. Right now is an excellent time to fertilize trees.

For young trees, good times to put out fertilizer is late March through early June. When a tree reaches the desired height you may decrease the fertilizer application to only once a year.

Monday May 12, 2008 | permalink | comments (2)

How to Manage and ID Mimosa

The fast-growing, deciduous mimosa has a low branching, open, spreading habit and delicate, lacy, almost fern-like foliage. Fragrant, silky, pink puffy pompom blooms, two inches in diameter, appear from late April to early July creating a spectacular sight.

There is a major down-side to planting this tree.

Mimosa produces numerous seed pods which will cover and seed yards with invasive seedings. Mimosa harbors insects (webworm) and has a major disease (vascular wilt) problem which effects its ability to live a long life. Although short-lived (10 to 20 years), Mimosa is popular for use as a terrace or patio tree for its light shade and tropical look. Plant with caution.

Mimosa Photo - Steve Nix

Saturday May 10, 2008 | permalink | comments (1)

Removing Root Ball Packing Material

Q: I am renting a house and have three 2 year old trees in the garden. Each tree has a wire cage still encasing the root ball. I have not seen any sign of burlap. I found the handles and top of the wire wrap. I have also noticed the same cages on other trees in neighbors gardens. Will burlap or wire affect the growth of the trees? Will I need to lift the trees and remove the cage? - Paul

A: Paul, experts suggest that most, if not all, packing material should be either removed or significantly pulled back. In your case, removing packing material after a tree has grown for two years could be harmful to the tree. Some roots will penetrate most packing material, enough to keep the tree alive and some may thrive. I would suggest you not try to remove the wire.

Photo by Getty/Photodisc/Siede Preis

Friday May 9, 2008 | permalink | comments (0)

Frederick Law Olmsted - Father of American Landscape Architecture

David Beaulieu, About's Landscaping Guide, says Frederick Law Olmsted is known as the "father of American landscape architecture". Among other achievements, his was the mind behind Central Park, New York City. Find out more about Frederick Law Olmsted which focuses on the far-ranging scope of his genius. One of his greatest accomplishments was the grounds for George Vanderbilt's mansion near Asheville, North Carolina, known as the "Biltmore Estate."

Olmsted's Black Locust Trees in Central Park - Photo by Steve Nix, Licensed to About.com

Thursday May 8, 2008 | permalink | comments (0)

Prevention and Control of Tree Root Damage to Water Lines

Tree roots usually invade through water and sewer lines that are damaged and in the top 24 inches of soil. Sound lines and septic systems have trouble with root damage mostly at weak points where water is seeping out. The larger, faster growing trees are the biggest problem trees. Avoid planting these trees near your service and watch very carefully these kinds of trees near your lines. The University of Tennessee recommends these steps for prevention of tree root damage:
  • Plant small, slow-growing trees near sewer lines.
  • If faster-growing species are desired, plan to replace trees every eight to 10 years.
  • Even slow-growing trees will eventually interfere with sewer lines. These trees must be replaced periodically.
  • When building new sewer lines or improving existing lines, consider landscaping plans and potential root intrusion from trees.
Wednesday May 7, 2008 | permalink | comments (1)

Discussion: Cedar-Apple Rust

"Had a call today from a woman, frantic that space aliens had invaded her tree. After she explained what kind of tree it was I pretty well knew what she had. We had a good rain overnight and her tree was a cedar (or really juniper) so I figured I'd go and take a pic." - Jebtaboz

I get this complaint every year in late Spring. Cedar Apple Gall Rust is a fungus that appears on redcedar and is actually one of the only "galls" not induced by an insect. This gall is a fungus and apple trees are its alternate host - no nearby apples, no galls. It will not harm your tree!

Cedar Apple Gall Rust on Eastern Red Cedar - Photo by Jim Zornes
Tuesday May 6, 2008 | permalink | comments (0)

Starting a Chainsaw

Small engines, including chainsaws, can be frustrating to start. This is especially true when starting a saw that needs a tune-up or when engine temperatures are extremely cold. Many times a new chain saw will give you trouble even when using the saw's operation manual.

Here is a step by step set of instructions that can make cranking up a chainsaw less of a chore. It has been developed from tips given by loggers who use the tool every day, year after year. The first big thing to remember is to keep the saw clean, full of gas and oil and perform regular maintenance.

OSHA Photo

Monday May 5, 2008 | permalink | comments (0)

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