Celebrate trees and protect our urban forests

Theodore Roosevelt once said “To exist as a nation, to prosper as a state, and to live as a people, we must have trees.” 

As we approach Florida’s Arbor Day, Jan. 15, 2010, I hope everyone begins to notice the trees around them and consider what they may do to enhance Florida’s urban forest.

With nearly 80 percent of the population living in “the city”, trees sometimes escape our attention. Yet they are a vital part of the urban environment. 

Trees shade our homes and businesses, reducing energy demands; filter runoff and prevent soil erosion, which protects water quality; and provide habitats for wildlife. All of these things improve our quality of life.

However, when considering a tree selection for your Arbor Day planting, also remember another upcoming event -- National Invasive Species Awareness Week, Jan. 10-12, 2010. Some exotic plants, like Chinese Tallow or Popcorn Tree (Triadica sebifera), have escaped cultivation and disrupted native ecosystems.

They are referred to as “invasive” exotic plants. In 1772, Benjamin Franklin sent a few seeds to Dr. Wimberly of the Georgia colony with a brief comment, “Tis a most useful plant.” 

Since then, the Chinese Tallow tree has been used as an ornamental plant. Unfortunately the species invaded wetlands, coastal areas, disturbed habitats and has been shown to reduce native species diversity and richness and alter ecosystem structure and function in Florida’s natural areas. 

Popcorn trees, a native of eastern Asia, have been a popular landscaping choice because of their brilliant red fall color. Yet several native trees have similar beautiful autumn displays. 

This year consider one of the Florida native trees, such as Winged Sumac (Rhus copalluim), Red Maple (Acer rubrum) or Black Gum (Nyssa sylvatica). We can add to our Florida urban forests without contributing to the state’s invasive species problems.

Sheila Dunning is with the Commercial Horticulture division of the Okaloosa County Extension.