Posts Tagged ‘landscaping’

Texas mock orange

Posted on May 20th, 2014 by Bill Hopkins

Texas Mock Orange (Philadelphus texensis) and its almost identical relative, Canyon Mock Orange (P. ernestii), resemble miniature versions of the long popular non-native mock oranges and their cultivars, which have been grown as ornamentals since at least the early 1800s.

TexasMockOrangeOur native mock oranges are ornamental delights that grow one to three feet high with little dark glossy leaves. The multi-branched limbs are crowded with blooms in April and May, silky-white and fragrant. The flowers are only three quarters of an inch across and have four white petals around a bright-yellow center of numerous stamens. Jill Nokes in How to Grow Native Plants of Texas and the Southwest claims that Texas Mock Orange “produces flowers more prolifically” than canyon mock orange.

These natives can be used in home landscapes as low-growing flowering shrubs in shady locations.  They are not typically found in nurseries but ask for it. A few wholesale nurseries grow it, and we expect it to become increasingly available in the retail trade. Although it has no legal protection at present, collecting mock orange from the wild is highly discouraged. Besides, it doesn’t transplant very easily.

In their natural habitat, Texas and Canyon Mock Orange grow on boulders and steep walls in moist limestone canyons. Jill Nokes writes that Texas Mock Orange will adapt to heavier soil as far north as Dallas. Plant it in shady moist locations or where moisture can be provided. Its fragrant flowers and compact size make it an attractive shrub for planting near the house. Give it conditions similar to where it grows naturally – partial shade in moist but well drained soil. It will need protection from browsing deer.

Both mock oranges are endemic to the southeastern Edwards Plateau. Texas Mock Orange occurs only in Bandera, Edwards, Real, and Uvalde Counties, and Canyon Mock Orange is known only in Bandera, Blanco, Comal, Hays, Kendall, and Travis Counties. About the only way to distinguish the two in the field is by hairs on the underside of the leaf. Lower leaf surfaces of P. ernestii are covered with short straight hairs, while those of P. texensis are matted with a mix of short straight and long tangled hairs.

Planting our less-abundant native plants can be a way to help offset the effects of the decrease in native species diversity brought on by loss of habitat, deer browsing and invasion of exotics. And they’ll make an uncommon and interesting addition to your plants.

Summer landscape classes added in DFW

Posted on May 17th, 2014 by Bob Kamper

We’ve added two additional classes to the Native Landscape Certification Program in the Dallas/Fort Worth area this Summer.

Meg Inglis, NLCP Coordinator, said the classes will be held in Denton on June 7 and in Cedar Hill on June 28. Registration for the classes is now available online. The NLCP classes teach sustainable landscape design using native plants specific to the vegetation regions of North Texas.

For more information see our class schedule page or contact Meg Inglis.

Summer classes for the San Antonio area were announced earlier.

Goldenball leadtree

Posted on May 16th, 2014 by Bill Hopkins

Goldenball Leadtree is a small tree or large shrub, usually about 6 to 12 feet high with multiple trunks, and light-green airy foliage.

Goldenball LeadtreeGoldenball Leadtree (Leucaena retusa) is a legume with the acacia look, but without thorns. It is an attractive foliage plant most of the year, but during the late-spring bloom period, Goldenball Leadtree puts on numerous, bright golden-yellow globe-shaped “puffballs” about an inch across which brighten the landscape. It may also bloom intermittently through the summer after a rain. Small pods of seeds follow the blooms.

In the wild Goldenball Leadtree grows in fairly harsh conditions, in unshaded, well-drained sites in rocky, limestone areas and dry canyons. It is a Texas native found in the western part of the Edwards Plateau and the Trans Pecos area, as well as in New Mexico and northern Mexico. The University of Texas herbarium includes specimens also from the eastern margin of the Edwards Plateau in Comal, Blanco and Travis Counties. It does very well in Hill Country gardens.

It can be pruned to be a single-trunked tree if you dislike the multi-trunked form. Its fast-growing branches are thin and brittle so it benefits from pruning. It can be found in many nurseries and also grown from seed. Give it a dry location in full sun or part shade. Goldenball Leadtree needs to be caged to protect it from browsing deer.

Meg Inglis to coordinate landscape classes

Posted on April 14th, 2014 by Bill Hopkins

The Native Plant Society has chosen Meg Inglis to be the coordinator for its Native Landscape Certification Project.

Meg InglisMeg’s experiences and interests make her well-prepared for the role of coordinator. She has previously served as president and board member for the Austin Chapter and volunteers frequently on Society projects. She has been involved in several restoration projects in the area northwest of Austin. Her past work experience includes developing and implementing training materials in a corporate environment.

“I am looking forward to assisting the Society in the roll out of this exciting program,” Meg said. “By landscaping with native plants, Texans can do their part in preserving natural habitats and conserving water during this critical time of rapidly increasing development and diminishing water resources.”

We are extremely pleased to have Meg on board with this project and look forward to a mutually rewarding relationship. Carol Feldman, chair of the NLCP Steering Committee, said that many well-qualified candidates submitted applications, and that it was extremely difficult to select just one. The committee evaluated all applications before making their decision.

The Society decided at the January State Board meeting to create landscape classes for homeowners and professionals across multiple regions of Texas, and to hire a coordinator to schedule the classes and help develop content. The program incorporates regional classes previously developed by chapters in San Antonio and Dallas/Ft Worth.

One of a kind for South Texas

Posted on August 19th, 2013 by Colleen Schreiber

Tucked away in a place not typically advertised to the public is the A.E. Leonard Native Plant Garden, a one-of-a-kind South Texas gem. It’s unique in that it is the only place where one can find so many plant species native to South Texas in one spot – and by a lot. Some of the plants found here would even be very difficult to see in the wild in South Texas, and perhaps impossible to see in a garden.

“There’s no place like it,” insists Dr. Fred Bryant, Director of the Caesar Kleberg Wildlife Research Institute (CKWRI). “We have some fairly rare plants in our garden, some that might not persist outside of cultivation 20 years from now.”

Photo by David Mahler

Photo by David Mahler

Currently the garden features over 350 species of plants native to the area from Del Rio across to San Antonio and Victoria and extending down to the Rio Grande Valley. They are representative of the mesquite savannah, South Texas brush, sand sheet, live oak motte, bordas escarpment, South Texas prairies and riparian zones. Many of the plants were acquired from South Texas ranches and in several cases landowners donated truckloads of dirt and rock used to create the habitats for these niche dependent species.

A garden for plant geeks, it has three quarters of the cactus and succulent species found in South Texas, including the four Manfredas, or False Aloes, found nowhere else in the United States except South Texas.

The native plant garden was Bryant’s idea. It wasn’t in the original plans; rather, it more or less just happened. In 2004 Bryant and his advisory board raised the money to build a multi-use events building for Texas A&M University-Kingsville and the Institute. Once completed, he decided some landscaping was needed and the idea of a garden behind the patio came to mind and the Leonard family of San Antonio stepped up to help with much of the cost.

The garden was designed and established by David Mahler and his design partner Judy Walther. Their company, Environmental Survey Consulting, based in Austin, specializes in native plant communities with a focus on habitat restoration and native landscaping. Mahler and Walther started landscaping with native plants 20 years ago, long before it was “vogue” to do so.

CKWLC3Mahler, who is the lead designer on the project, describes himself as a “frog and turtle kid” and a kid of nature. He developed a love of plants early in his adult career while working as the nature director for various summer camps on the East Coast and later at the Wild Basin Wilderness Preserve in western Travis County just outside of Austin.

Being less familiar with South Texas plants than plants of the Hill Country, for Mahler this particular journey has been interesting and challenging.

“I’m not a great botanist; I’m a decent botanist. I’m an old school naturalist, which is a fancy way of saying a jack of all trades for many outdoor things,” he comments. “And yes, I’m a plant geek.”

The learning process began from the get go because the decision to plant only species native to South Texas required the planners to create a list. Creating an accurate list was an intensive process. Mahler and Walther used the just published Atlas of the Vascular Plants of Texas by Billy Turner, a retired botany professor at the University of Texas. The two-volume edition contains about 6,000 Texas maps, one for each Texas plant, showing the counties where each has been found.

Using this book, Walther created a list of about 2500 South Texas plants. On this list each plant is assigned a number from one through seven. For example a plant with a “1” is found exclusively in the Lower Rio Grande Valley, a “5” is found both in South Texas and equally in other parts of the state, and a “7” is mostly in other parts of the state with a few occurrences in South Texas. To date, approximately 350 plants on that list are now growing in the garden.

Mahler and his team have spent the last eight years building up the collection of plants, species by species. Typically when he is adding to the collection, Mahler digs up four or five plants from a ranch. Two or three are planted immediately in the garden. Then to hedge his bets, he typically takes one or two home to his nursery to try later in the garden.

“We’ve had pretty good luck keeping them alive; we’ve gotten more to grow than we lost, but some take two or three turns,” he admits.

CKWLC2Their most recent project is focused on building a collection of South Texas woody and succulent species of which there are 342 possibilities on their master list. They now have 150 of those species growing well in the garden, labeled with unique ceramic tiles, and mapped in a newly published guide for this garden. There are another 50 woody and succulent species in the ground and as soon as the success of those plants seems likely, each will be given a sign and added to the map.

The plant diversity has made this unique garden a terrific place to bird watch. It’s also a wonderful place for butterflies and dragonflies. In fact, Tom Langschied, CKWRI South Texas Wintering Birds Program Coordinator, has identified some dragonfly species in the garden that have never been seen north of the Rio Grande Valley.

While the garden is largely about the plants, a replica of an old fashioned windmill and water trough is the garden’s centerpiece. The idea for a water feature came after Bryant saw a replica of a hill country stream at the Lady Bird Johnson Wildflower Center. After finding out that it was the well-known naturalist David Mahler who had developed it, he sought him out to build a similar kind of water feature for the South Texas garden.

“He’s a botanist and a landscape designer, but he’s more an artist than anything,” Bryant says of Mahler.

The idea of having some kind of stream appealed to Bryant as did the sound of running water.

“Hmmm. Is there really such a thing as a running stream in South Texas,” Mahler queried?

Moreover to have even a small waterfall one needed some elevation and rock, and as Mahler discovered there’s not a lot of rock in South Texas nor was there much elevation change in the garden. Nonetheless, like the planner and the designer that he is, Mahler and Bryant went on an exploration trip, of sorts, to the famed King Ranch. What they discovered were these dry streambeds that had sacahuista grass growing down to the edge. When they passed a windmill, a light bulb went off.

CKWLC1“We determined that the biggest waterfall in South Texas was, in fact, a windmill when the water comes out of the pipe into the tank,” Mahler said. “Then when it overflows out of the tank onto the ground there is usually a depression from the cattle. These depressions and the local ephemeral ponds fill up with wetland plants such as Arrowhead and blue water lilies in wet weather. That’s what we saw and this became our model,” he explained.

Once the water feature and riparian habitat were completed the plants were added in phases. The second phase was the cactus and succulent garden and the following year the bordas escarpment. The bordas escarpment of South Texas is a low caliche ridge that extends from Starr County north and eastward to the Nueces River. Mountain laurel, cenizo and many other species grow on these dry chalky hills.

“It’s very different habitat. We knew we couldn’t grow the plants that occur on the bordas escarpment in the heavy black clay soils associated with the Kingsville area,” Mahler points out. “So we developed the habitat. We brought in about 200 yards of caliche from a quarry in Live Oak County and we built the tallest mountain in Kingsville – it’s a little four foot hill.

The most recent habitat is the sand sheet, established about two years ago. Here again about 200 yards of sand had to be hauled in.

In creating a habitat there’s no real endpoint. Also without the much-needed tender loving care provided by gardener Mark Madrazo, the garden would be overgrown and invaded by exotic grasses like guinea grass and other noxious weeds.

“It’s a subtle maintenance,” Mahler points out. “We want it to look natural, even wild.”

This is Mahler’s first botanical garden that he’s designed and followed through to development and beyond. For him it’s been a labor of love, a learning experience.

“I knew my Hill Country plants, but I had to learn my South Texas plants, and while I’m no longer a beginner, I’m still learning, and I won’t live long enough to become a South Texas plant expert,” he insists.

A field trip to the A.E. Leonard Native Plant Garden is planned during our Fall Symposium.