Nuttall Oak – A Great Shade Tree for Panhandle Yards

Nuttall Oak – A Great Shade Tree for Panhandle Yards

After Hurricane Michael indiscriminately felled millions of trees in the Florida Panhandle five years ago, I’ve gotten much more selective with which trees I recommend to shade-seeking homeowners.  Category 5 hurricanes don’t strike every year, or even every decade, but Michael reminded us that 150 mph+ wind events are possible, and we should choose the trees we plant accordingly.  Keeping Michael’s lesson in mind, the shade tree I’ve recommended most to area homeowners lately is the ultra-wind resistant Nuttall Oak (Quercus texana) *.

While probably not native to our area (Nuttall is native to Mississippi River Valley bottomlands and nearby Gulf Coast regions), Nuttall Oak is a well-adapted deciduous oak species perfect for the Panhandle.  The species is a strong, long-lived tree, yet also a quick grower (3-4’ per year in its youth, reaching 60-80’ at maturity).  Unlike many rapidly growing trees, Nuttall is extremely resistant to wind breakage, disease, and other disfiguring issues.  There are several Nuttall Oaks in Panhandle landscapes that survived Michael’s fury completely intact, with little more than wind-whipped leaves as evidence a storm had passed. 

10 year old Nuttall Oak in a Calhoun County landscape. Photo courtesy of Daniel Leonard.

Nuttall is also an awesome landscape ornamental and a wildlife magnet in maturity.  The species possesses a strong central leader and a stately, upright-rounded appearance.  In summer, Nuttall leaves are large, dark green, deeply lobed, and pointed, somewhat reminiscent of our native Southern Red Oak.  In fall, trees are capable of Blue Ridge quality color with fiery orange-red foliage, though the foliage show is not as consistent year to year here as farther north.  The bark of Nuttall even has aesthetic appeal – dark and smooth in youth becoming ridged/furrowed with age.  And it’s not just people that find Nuttall attractive, several beneficial insects use Nuttall as a host plant and various wildlife (deer, squirrel, and ducks especially) are fond of the prolific, highly nutritious acorns that mature trees produce in earnest each winter. 

Finally, Nuttall is among the easiest of trees to grow and thrives in a variety of landscape conditions.  Because it’s adapted to grow in poorly drained bottomlands that are either seasonally flooded or very dry, Nuttall is very tolerant of both compacted, poorly aerated soils common in urban areas and unirrigated, often droughty soils present in many Panhandle landscapes.  However, like any tree, Nuttall Oak performs best with regular water and fertilizer for the first couple of years until established.

If you’ve been searching for a native-ish, hurricane-resistant, quick-growing, low-maintenance, wildlife-attracting shade tree for your property, Nuttall Oak is an excellent option and one I can fully recommend!  For more information on Nuttall Oak or any other horticultural topic, please contact your local UF/IFAS County Extension Office.  Happy gardening!

*Nuttall Oak was recently reclassified botanically from Quercus nuttallii to Quercus texana.

Learning from the Floods

Learning from the Floods

Just over a year ago, southwest Alabama and northwest Florida experienced a devastating storm that left hundreds without access to their homes and businesses, flooded out and stranded by a hurricane-force storm that didn’t come with the luxury of a week’s warning. Rainfall records in Pensacola go back to 1879, and the April 29-30 storm broke them all, estimating just over 20 inches over the two days. Not only was the rainfall heavy, but the torrent was high in both velocity and volume—at one point, a mind-boggling 5.68 inches fell in the span of one hour. That’s half the annual rainfall of many cities in California and Texas!

gas geysers

A residential street in Pensacola became a raging river a year ago during the torrential floods, putting dozens of people out of their homes. Photo credit: Carrie Stevenson UF/IFAS Extension.

With every dark storm cloud comes a silver lining, though, and just like the millions pumped into our regional economy from oil spill-related fines, the April 2014 floods have awakened a “greener” ethic among many residents, business owners, and politicians. According to a study just released by an environmental consulting firm, when asked about infrastructure changes and improvements to flooding and stormwater, attendees at community meetings overwhelmingly preferred “low impact” solutions such as expanded green space, cisterns, rain gardens, and stream restoration to “hard” structures such as bigger underground pipes and more pumps. While traditional engineering infrastructure is still crucial to a community that must maintain roads, stormwater ponds, and buildings, I find it encouraging that residents are interested in trying different techniques that have proven successful both here and in other parts of the world.

rain barrel

The new Langley Bell 4-H Center has four large rain barrels around the building, used to collect roof runoff for landscape design. Photo credit: Carrie Stevenson UF/IFAS Extension.

So, how does one prepare for unexpected rain and floods? The first thing is to realize that northwest Florida receives the most annual rainfall (over 60”) of any region of the state, and sometimes it seems to come down all at once.  Preparing landscapes to handle both frequent and heavy rains is an important place to start.  This article will begin a series of articles delving into those “low-impact” stormwater management techniques that can help lessen the impact of the intense storms we experience here in northwest Florida. Many of these practices, such as creating mulch pathways, harvesting rainwater, and installing shoreline vegetative buffers, can be implemented by individual homeowners and help reduce the impact of flooding on a neighborhood and city-wide level

Landscape Issues Related to Excess Rainfall and Flooding

The last week of April 2014 brought with it 10-22 inches of rain across the panhandle in a matter of days.  Some areas had immediate flooding and standing water, while others may be in areas at risk of rising rivers and streams.  As the water recedes, many people are wondering how all the water will affect their landscapes.

Only time will tell what the long term impact will be, but here are a few things to watch for and what you can do to try to moderate damage.

  • Let soils dry out before driving vehicles or other equipment on grassy areas.  Even if the water is not visible, if the soil is still saturated, driving lawn equipment or cars may cause ruts.
  • Do not leave automatic irrigation systems running on established shrubs, trees, and lawns.  If your system is set to run in the early morning hours, you may not think about it being on, check your systems and hold off on adding water until soils dry out and the plants need it.
  • Watch for fungus symptoms and treat if needed.  Wet plants and cool weather are ideal for some Brown Patch on lawns, be aware and monitor landscapes closely.  If disease is suspected, contact your local county extension office for recommendation.
  • When mowing, leave a longer leaf blade to compensate for root stress.
  • Look at the base of trees and shrubs to make sure silt and sand have not buried the crown or root flare.  Also look for erosion of root zone, these areas may need correction.  “Salvaging Flood-Damaged Shrubs and Ornamentals.” 
  • Adjust fertilization as needed; if you recently applied fertilizer it has likely runoff or leached from the site.  However, if you suspect fungal disease do not fertilize until disease is managed.
  • Stress in turfgrass, for details read “Watch Turf for Flooding Stress
  • You may see new weeds (seeds or segments may have washed or blown into your yard)
  • Tree and shrub decline or death read “We Had Plenty of Rain, Why are My Trees Dying?”
  • Although this storm was not a hurricane, “Assessing Damage and Restoring Trees After a Hurricane”  has helpful information for areas with wind damage
  • Nutritional deficiency symptoms in palms may show up 4-5 months from now. “Nutrient Deficiencies of Landscape and Field-grown Palms in Florida.
  • Decreased availability and increased price of sod (flooded fields prevent harvest and increase inputs for disease, weed, and nutrition management)
  • Scheduling changes or maintenance adjustments by landscape contractors.  Turfgrass and ornamentals will likely need different maintenance applications than in years past to correct issues related to flooding and excess rain.