Create a Contemporary Environment with Modern Landscaping
April 23, 2021
Sandy soil. Muddy rains. Blazing sun. These ingredients aren’t what most gardeners would call ideal. The river birch tree, however, shatters every stereotype. Typically found battling erosion along the eastern banksides of the U.S., this tree prefers ample sun and crumbly soil.
Too good to be true? Keep reading to see why this birch is a game changer in north central Florida landscaping.
Beautiful Bark & Foliage
If you’ve ever peeled papery bark to etch messages onto as a kid, you know what makes the river birch (Betula nigra) distinct. This tree’s bark is a characteristically dun color revealing a salmon underside and a beigy inner bark as it curls back. The glossy, diamond-shaped leaves are a dark green that juxtaposes beautifully with its pale underside as it flickers in the wind. In the fall, the leaves turn amber (yes, a Florida native that changes color!).
The fruit of this birch is in the form of greenish or brownish catkins, complimentary enough to not detract from the birch’s beauty. These catkins, either male or female, will mature in the spring or early summer when the seeds then scatter and you have a chance of spotting your furry or feathery friends snacking on them.
If you live in an area that is particularly dry or hot or prefer a smaller or more romantic birch, don’t lose heart. The river birch’s various cultivars, such as Heritage, Fox Valley, and Summer Cascade, will not leave you wanting for creative license.
No twiddling of thumbs is necessary while waiting for a river birch to grow. These unique birches are high and speedy growers, boasting a growth rate of about 1 to 2 feet every year. While they can be 90-foot giants, they usually mature at 40 to 50 feet, with a trunk around 1 to 2 feet wide and a spread reaching 25 to 35 feet.
This makes river birches the perfect option for landscaping in a hurry. Plant by the back patio for an ornamental that will soon second as a lovely escape from the summer sun. Plot a few on the outskirts of your yard for a swiftly attractive windbreak that shimmers and scales in the breeze. Or simply place in a barren corner of your front yard for a lawn accent that will grow with your kids or grandkids.
As they grow, river birches often mature from a single trunk with oval or pyramidal foliage to multiple trunks culminating in an irregular crown. Whether your rental house is missing the final touch, or your residential home needs a spruce, this charming growth pattern will produce a rustle and glisten effect that is bound to make you pine for a nature break.
The sturdier member of the Betulaceae (birch) family, the river birch is a practical complement to lawns susceptible to Florida’s unpredictable wind, swelter, and rain. You can look out your window worry-free knowing that the river birch is also the only birch essentially immune to the bronze birch borer.
River birches love the sand and sun just as much as you do, making them a welcome and hardy option for the slightly acidic and sandy soil of the Sunshine State. They can grow in USDA hardiness zones 4A through 9A, so there’s no need to sweat about your river birch, even if you’re drenched just walking to the car. Not even the rainy seasons can catch these birches off guard – they love scattered showers and will temporarily tolerate flooding without being phased by the wind, due to their flexible branches.
Overall, river birch trees are a low-maintenance landscaping alternative to other fussier birches. As long as you keep the soil moist and prune superfluous branches in early fall when its leaves have shed and sap has stopped bleeding, you are likely to steer clear of yellowing leaves and bronze beech borers looking to irritate open wounds.
Especially in urban settings, the river birch will only live 30 to 40 years. It makes the tradeoff of a lengthy lifespan for quick growth spurts. Like an old soul version of the birch, these trees are mature for their age, but they burn out quickly. But not to worry. This just means that you will most likely need to replace your river birch once in your lifetime unless you reach centenarian status.
Since the river birch is deciduous, it regularly sheds its leaves in the fall. Another common cause for yellowing and dropping leaves is drought stress towards the end of summer or the beginning of fall. While deciduousness cannot be helped, it is important to mulch right around the tree, forming a couple-inch layer that will maintain soil moisture.
Pruning is mostly necessary during the river birch’s youth, when wet, bottom branches droop too close for comfort. Otherwise, this birch will often naturally prune itself as twigs drop due to die-back or heat stress. If well-watered, this should not generally be cause for concern in a mature river birch unless it is suffering significant decline, in which case the tree may simply be experiencing the effects of old age. You might even spot a white-tailed deer munching on fallen twigs and leaves!
While making transplanting easy, the shallow root system of the river birch can interfere with turfgrass that gets too close. Because the roots of this tree are concentrated in the topsoil, they can compete with turfgrass roots looking for water. This can also endanger the river birch if the herbicides, pesticides, and fertilizer applied to turfgrass come into contact with the tree’s roots. This problem has an easy solution, however – just provide your river birch with a circumference of mulch that protects its roots and keeps them from embezzling water from the grass.
Given a proper pH (5.0 to 6.5) and wet soil in full sun, there is not much to lose with the hardy and elegant river birch. With these planting conditions being so easy to find in north central Florida, this fast-growing birch is quickly growing in popularity and appeal.
Like you, it loves to bask in the sun but stay hydrated. It sheds layers when it gets hot. But regardless of the season, its beautiful bark, two-toned leaves, multi-trunks, and irregular growth habit make it easy on the eye any time of the year.
If you have been looking for a last-minute and low-maintenance tree with an aesthetic flair to shade or accent your yard, the river birch tree is it. As you look into purchasing and planting your own river birch, don’t hesitate to reach out to the friendly professionals at LawnMore for soil tests, informative consultations, and installations.
For small projects, large renovations, and maintenance agreements for homes and businesses of any size, we’re ready to do an excellent job for you.