Cercis canadensis var. texensis 'Oklahoma'
Mature Height: 15 to 25 ft.
Mature Spread: 15 to 25 ft.
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The Oklahoma redbud is a great cultivar option for someone who wants the traditional look of the eastern redbud but needs a hardier variety with more blooms. The Oklahoma redbud proves to be more tolerant to heat and drought conditions allowing it to grow in warmer zones or perform better in direct sun. The Oklahoma redbud has the iconic purple pink flower clusters that cover the branches in early spring. The bright flowers are some of the earliest to come on after the long winter so they become the main attraction of your landscape. The native redbud grows throughout the Midwest and the eye catching blooms will get your attention even as you zoom down the highways. The leaves quickly come on after the blooms. The broad heart shaped leaves are dark, glossy green. Then in the summer the seed pods offer visual interest. Though redbuds are not known for their fall foliage they continue to perform into autumn with a nice yellow and orange leaf color. Even in the winter the form of the redbud with its zigzag branches and smooth gray bark offers beauty through those gloomy days.No matter what variety you choose, the redbud with its wonderful form and year round interest has great potential for any landscape. Whether as a stand-alone tree for a home or patio, a focal point in a garden bed, or for adding color to a natural woodscape.
|Bloom Color:||Red, dark pink, bright pink|
|Bloom Period:||Early spring|
|Fall Color:||Orange to yellow|
|Foliage Color:||Emerges bright green transitions to dark green in summer|
|Genus & Species:||Cercis canadensis var. texensis 'Oklahoma'|
|Mature Height:||15 to 25 ft.|
|Mature Spread:||15 to 25 ft.|
|Soil Type:||Adaptable, but prefers moist, but well draining soil that is rich in organic matter|
|Sun Exposure:||Full sun; Partial sun; Partial shade; Dappled light|
|Zone:||4 to 9|
General care for any tree or shrub is easy, but like any living thing will require your attention. Please educate yourself and follow these simple rules.
Redbuds are an amazing and varied species of tree. General care and soil requirements are the same, although light and temperature requirements will differ based on cultivar. We sell our redbuds bare-root, we've sold thousands of redbuds this way with few problems, but they will be lightly rooted when you get them. This means your number one priority should be getting the roots established. Do this by planting early in the spring (or fall if you are zone 7a or south) and caring for the tree appropriately with slow release fertilizer and proper water (a moisture meter works wonders).
Most problems with redbuds come from poor site selection. Tougher than a dogwood, a redbud is a hardy tree with few problems when sited properly. It will tolerate full sun or shade can withstand a bit of drought, but will struggle with disease and lack of growth in poor soil.
Redbuds do prefer some shade, afternoon shade is best as morning sun decreases problems with powdery mildew, but most cultivars will grow in full sun without issue. They will not tolerate a site with standing water and prefer well-drained soil rich in organic matter. Soil composition is less important with redbuds than compaction, which happens from heavy equipment, vehicle traffic, mower traffic or even lots of foot traffic. Compacted soil is hard and lacks the natural sponge like structure that redbuds need to grow. A good rule of thumb is that if grass is struggling in an area then redbuds will too. Speaking of grass, grass should be removed in a 2-3 ft. radius around the redbud. Wood mulch should be applied and must be applied to qualify for a refund. Rock leads to extra heating and is as likely to damage your tree as protect it. Finally, redbuds can grow in costal areas, but the salts near the ocean will cause growth issues. They should not be grown south of the Florida pan handle unless your micro-climate specifically sustains existing populations of the tree.
Problems with powdery mildew can occur and if they do we recommend increased airflow and making sure your watering regiment does not wet the leaves. In very wet years or climates this problem can be unavoidable, but try pruning back some of the branches or your redbud to increase airflow. Early spring and after flowering are both suitable times to prune - following directions for proper tree pruning.
Redbud Leaf Roller Caterpillars
Leaf roller caterpillars are small and zebra striped. They will fold, roll, or paste leaves together with silk to create a home. Once again established trees should not be a problem (see below for weeping redbuds), pruning back some of the leaves can improve airflow and access to predators. If you continue to be bothered by them, we suggest stepping back 10 ft. and seeing if they are still a problem. If they are, we prefer the long term solution of creating habitat for predators, birds and tiny parasitic wasps (they don't sting) over the use of pesticides that do more harm than good. Once again eliminating some of the leaf density will give them less high quality real estate, while making them easier for predators to reach. Peeling apart stuck leaves before they receive too much damage is also helpful. We don’t recommend pesticides as these will struggle to reach the leaf rollers caterpillars, simply making them more accessible to predators and using the 10 ft. rule (view the trees from 10 feet away) are the best approaches to dealing with this important food source for birds.
Leaf Cutter Bees
We get a lot of questions about perfectly cut circles and semicircles in redbuds. These are fascinating in their own right, and you may think tiny ancient aliens visited your tree at night. This is the work of the leaf-cutter bee, which is an important native pollinator that uses redbud leaves to make its nests. Once again, living with nature and the 10 ft. rule is the best approach here.
Weeping redbuds are great trees for small spaces, use them in a home landscape for their unique appearance and beautiful qualities. They must be trained to a certain height, so if purchased below the intended size, stake them and tie them with vinyl tape periodically to help them reach the desired size. At 3-4 in height they make an interesting alternative to shrubs, at 6-7 feet they are gorgeous weeping trees.
Powdery mildew and redbud leaf rollers can be a bigger problem for weeping redbuds due to the leaves layering on top of one another that create a lack of airflow and deny access to predators. We recommend periodic pruning of your weeping redbud if you experience either of these issues. Think of it as a haircut and take your time pruning only a small amount and smaller branches if possible. Spring and summer after flowering are both good times to prune.