Tag Archives: Trees for Dallas

Snowball Viburnum

March 27, 2024

A view of 3 Snowball Viburnums, looking thru my blackberry bushes. Eleagnus flanking the west side, hellebores underneath.

Spring comes and this is what I see every year out my south-facing windows. What a sight! I planted these 3 snowball viburnums 11 years ago. They have been the showiest, easiest plant choice I have ever made. The buds are chartreuse and and bloom into softball size white blossoms.

As you can see from my picture above, mine are now feet 15 tall and slightly crowded but I don’t mind. The winter honeysuckle that has gotten bigger than I ever expected is pushing one snowball to the East. It is going to be pruned!

Last year even with the unbearably hot temperatures, my viburnums bloomed a second time. There were’t as many blossoms but in that terrible summer heat it was nice to see a few snowballs.

Plant Attributes

This picture from Neil Sperry’s website shows the early chartreuse bloom.
  • Common Name: Chinese snowball viburnum, Chinese snowball tree
  • Botanical Name: Viburnum macrocephalum
  • Family: Adoxaceae
  • Plant Type: Perennial, Tree, Shrub
  • Mature Size: 6–20 ft. tall, 6–15 ft. wide (grows larger in warmer climates)
  • Sun Exposure: Full, Partial
  • Soil Type: Well-drained loamy, sandy, or clay soil
  • Soil pH: Acidic
  • Bloom Time: Spring
  • Flower Color: begins chartreuse then becomes white
  • Hardiness Zones: 6–9 (USDA)
  • In Dallas, Snowball Viburnums do not loose their leaves in winter
  • Excellent cut flower with long vase life!

Ann Lamb, Dallas County Master Gardener Class of 2005

Tornado Damage to Trees in Dallas

Tornadoes ripped through Dallas, October 20, 2019. What a loss for our city when you count property destroyed and trees uprooted or damaged.

 

Many of our beautiful trees were destroyed.

Eric Larner, Dallas County Master Gardener and Citizen Forester and Steve Houser, also a Dallas County Master Gardener and President    of Arborilogical Services discuss what happened and what to expect in the paragraphs below. They also remind us-we have a lot of tree planting ahead!

Eric, do you have anything you would like to tell the readers of our blog about trees after the tornado?

Have there been any estimates of the loss in terms of trees? I wonder what percentage of our tree canopy in Dallas was destroyed?
 
 
What recommendations would you give?
 
 
Maybe we should have a class so people could come ask questions and see our tree selection.
 
Ann Lamb

From Eric Larner-Great questions – Of course, the damage a tornado (100+mph winds) against ANY tree is almost always 100% fatal to the survival of the tree no matter the size of the tree. But tornados take weird and strange paths(i.e. total destruction on one side of the street and very little damage on the other side).

I would refer you to Steve Houser on estimates of destruction to the city’s overall tree canopy. I do know that to replace the benefits of one very LARGE tree( 40-50” caliper) takes 150+ 3” trees planted and that would take around 25+ years to achieve. So you see, we will need to plant a lot of trees in our city.

A neighborhood class talking about medium – large shade trees  would probably focus on alternative choices to red oaks and live oaks in the metroplex.

Eric Larner

From Steve Houser-As Eric noted, the damage often follow unusual paths.  We had a storm in late June with 70 MPH winds that damaged properties in south Richardson all the way to downtown Dallas.  One of the ten recent tornados contained over 140 MPH winds that took out houses and most (or all) of the trees on a property.  Many huge Oaks were blown over and those that survived often had extensive damage.

Eric’s notes  are accurate calculations regarding how long it takes to replace the biomass (or foliage) of one large tree.  Although it replaces the biomass in 25 years, it does not replace a cool and old tree for around 100 years.

If you consider the losses from both the events noted above, a guess at the loss in canopy cover would be between 4 to 5%.  Although it does not sound extensive, it was easily over 100,000 trees lost or damaged.

Trees lost or damaged included up to 90% of the canopy coverage in specific areas with 140 MPH winds and less in areas with 60-100 MPH winds.

We have handouts on recommended species.  As Eric noted, Raincatcher’s Garden is a great demonstration garden for some of the choices.

  • It is always best to check with a consulting arborist and ask for a full assessment of all trees.  Keep in mind that it may take some time to get them out but they can help to detect trees that can fail structurally in the future and determine the best course of action for a damaged tree.
  • DCMG`s have already been taught about cabling/bracing, reducing end weight on long limbs and determining weak forks in trees, to help reduce future damage or losses.
  • If a tree lost 20-30% of its foliage, it may be salvageable and recover.
  • If a tree lost 40-60% of its foliage, it will never look the same again but may have a chance to survive.
  • If a tree lost 70-100% of its foliage, most arborists recommend removal and replacement.  However, if the primary branching structure is not severely damaged, they will not look good but some of them can be saved.  Some folks may leave the tree for a year or two to see if it grows back and how it looks.  In some cases, another tree or two will be planted nearby and to possibly replace the damaged tree at later date.

Steve Houser

The Raincatcher’s Garden will host a tree class in early 2020.

As Eric said, it will be about tree selection, and also care of trees.

We will announce the date of the class in January, 2020.

To read some of our previous material about tree care, click on the links below.

Pick a New Landscape Tree

Ornamental Trees for Texas

Berms and Tree Planting at Raincatcher’s

When and Why to Plant Trees

Thank you, Eric and Steve.

 

 

 

 

 

 

 

Dallas Morning News Talks Trees at The Raincatcher’s Garden

If there’s a spot in your yard that could use some shade, it’s time to think about planting trees.

Fall and winter are the best time to plant ornamental and fruit trees, arborists say.

“October, November, December — it’s the optimal time,” says Steve Houser, a certified arborist and a leader in the Dallas Citizen Forester Program.

Late-year planting allows roots to get established “before the summer blast furnace,” adds Eric Larner, an urban forestry specialist for Dallas County Master Gardeners.

“Our main planting season is probably November through March,” says Larner, 73, of Carrollton.

Larner helped select five trees planted in the master gardeners’ Raincatcher’s Garden at Midway Hills Christian Church. The garden, which includes a butterfly garden, flowers and vegetables, is designed to show the public what works.

The gardeners planted three oaks — a chinquapin (quercus muehlenbergii), Mexican white oak (quercus polymorpha) and Lacey (quercus glaucoides) — a cedar elm (ulmus crassifolia) and ginkgo (ginkgo biloba).

Notice that a live oak and red oak, two of the most popular trees in Texas, were not included.

“We need to get away from live oak and red oak,” Houser says. They are particularly susceptible to oak wilt, a disease that kills a tree, then spreads through the roots to kill other oaks nearby. Cedar elms are reliable, adaptable shade trees that are drought tolerant and turn golden yellow in the fall.

Larner says a ginkgo is part of the mix to add something a little unusual.

“The ginkgo is becoming more popular because it is drought tolerant and more likely to have fall color,” Larner says.

A ginkgo warning: Be sure it’s a male tree. Females produce stinky fruit, Larner says. “I don’t think retailers are selling females, but you need to check.”

When it comes to shade trees, probably the bigger the better. Trees with a dirt root ball wrapped in burlap are the best, but they are also more expensive, Larner says.

A container tree from a local big-box store can be fine, if it’s carefully selected and planted. If possible, ease a tree out of the container at the store to see if the roots are somewhat vertical or look more like a woven basket.

If the roots are wrapped around the root ball, they will need to be pulled out and even cut to keep them from strangling the tree after it’s planted.

The same guidelines apply to fruit trees, says Larry Stein, a specialist with Texas AgriLife Extension Service. Except he likes to plant even later.

“If I had my choice, I’d plant in the winter,” he says. January and February are his favorite time. Bare-root trees, those whose roots are usually wrapped with little or no soil, are more likely to be available. “They are cheaper,” Stein says, and you can see whether the roots are healthy. Often they are found at feed or farm supply stores.

Container-grown trees are more readily available, he says, and will do well if planted carefully. Ideally, fruit trees should be 3 to 4 feet tall. If they are taller, it’s best to trim the central trunk at the top. Side limbs should also be pruned, Stein says. Peaches, pears, plums and other fruits do well in Texas. Apples can grow but are subject to cotton root rot, Stein says.

Homeowners interested in the more unusual can try persimmons. The key, the arborists say, is to pick a tree and plant. The shade, and maybe fruit, will be well worth it.

Karel Holloway is a Terrell freelance writer.

 

Why plant a tree?

 

Trees provide shade.

 

They help clean air.

 

They can lower utility bills.

 

Roots hold soil in place.

 

Trees add value to property.

 

Choose the right tree

 

Decide what kind of tree you want. Will it primarily provide shade? Screening from an unwanted view? Fall color? Edible fruit?

 

Pick the right spot. Is there room for the size tree wanted? Remember to think about how far the tree will reach when it’s fully grown.

 

Will it interfere with driveways, walkways or the home’s foundation?

 

Will the selected tree interfere with power lines when it is full size?

 

Think about the amount of shade it will provide. Will it shade the home’s windows? When it’s full size, will it provide too much shade for grass or flowers to grow?

 

Does it have undesirable characteristics? Is there unwanted fruit? An unpleasant smell?

 

How to plant a tree

 

Select the proper site with appropriate soil type. Eric Larner, a Dallas urban tree specialist, says he ran into solid rock just a few inches down when helping plant at the master gardeners’ demonstration garden. The planters dug through the rock and planted. The tree didn’t do well, Larner says.

 

Measure the root ball and dig a hole 2 to 3 times the ball’s diameter.

 

The hole should not be too deep. The top of the root ball should be level with the ground.

 

If the hole is too deep, backfill with dirt taken from the hole. Steve Houser, a certified arborist, says it’s better to plant a tree too high than too far into the ground.

 

Remove the tree from the container. Make sure girdling roots are pulled or trimmed.

 

Place the tree in the hole and fill in with removed dirt. Fertilizer is not needed. Some compost can be mixed with the fill dirt, if desired. Larner says to be sure to stomp the dirt down so the tree won’t settle too much later.

 

Use a slow-running hose to thoroughly water the tree.

 

Put mulch around the newly planted tree, pulling it away from the trunk.

 

Protect the trunk with a purchased protector or slit the side of a 2-liter plastic bottle and place it around the trunk.

 

Water as necessary, depending on how dry the soil is. Houser says just poke your finger in the ground to see whether it’s damp a couple of inches down. Water if it’s dry.

 

SOURCE: Dallas Morning News research

More information about our tree selection here.

Berm and Tree Planting Video.

How to Plant a Bare Root Tree Video.

 

 

 

 

 

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