A Plant Favorite Comes South

A visit to a nursery and homeowners will see so many new selections of plants for the landscape. Some of these plants are new plant developments and may include plants we could not previously grow in Florida’s heat and humidity. One new plant series is the Southgate® Rhododendrons.

Anyone from more northern areas of the South is very familiar with the rhododendrons that offer showy spring blooms. Those particular rhododendrons just don’t make it in our Florida climate.

The Southgate® series from Louisiana were developed to be more tolerant of our weather conditions. Homeowners must still consider plant placement very carefully since these plants have some specific requirements even in Florida. Plants will do best in shade or filtered shade, especially in the afternoon. They do like an acid soil amended with compost and areas that are well drained. Homeowners will need to supply water during the growing season to maintain a uniform soil moisture.

Rhododendron foliage

Rhododendron foliage with buds.

Consider trying one of these newer rhodendrons if your landscape has a suitable spot and you will definitely enjoy a bright spot of color come spring.

Special Note: If you have animals or children be cautious since all plant parts are toxic if ingested.

Time to Plant Trees & Shrubs

The cooler weather in the wintertime makes it a great time to plant trees and shrubs. That is why Arbor Day in Florida is the third Friday in January. In 2016, that event is January 15.

Baldcypress growing at the edge of a pond. Photo:  Julie McConnell, UF/IFAS

Baldcypress growing at the edge of a pond. Photo: Julie McConnell, UF/IFAS

Start your planning now with doing a site assessment on your landscape, then choosing the right trees and shrubs for your particular environmental conditions.

Here are some great sites that offer online tools for finding just the right species:

Florida Tree Selector

The Florida-friendly Guide to Plant Selection & Landscape Design

Florida Native Plant Society Locator

And if you want to find out just how much your established trees are worth, use this National Tree Benefit Calculator!

 

For more information:

Planting Trees in the Landscape

Arbor Day Foundation: Florida

Yaupon Hollies Are a Great Fit and Tasty Too!

Yaupon Hollies Are a Great Fit and Tasty Too!

Yaupon hollies (Ilex vomitoria) are evergreen, provide great fall/winter color, and can adapt to numerous landscape situations.  They are also very durable and can survive extreme drought.

Characteristics

Yaupon hollies are dioecious, meaning male and female flowers are produced on separate plants and berries are only produced on female plants.  Flowers are creamy white, but not showy on both male and female plants and berries can range in color from red to yellow depending on cultivar.  The plants are favored by wildlife – pollinators are attracted to the flowers and birds love the berries.

Yaupon hollies are native plants with a number of different cultivars available at plant nurseries.  ‘Jewel’ is a cultivar that produces an ubundance of red berries and ‘Aureo’ produces yellow berries.  ‘Nana’, a dwarf, compact male cultivar is an excellent replacement for boxwoods.  Large growing cultivars can grow to 15 to 25 feet tall and can be shaped as trees or left as large shrubs.  ‘Folsom’s Weeping’ and ‘Pendula’ are two weeping cultivars that can be utilized as dramatic specimen trees.

Dwarf Yaupon hollies will naturally form a mound without pruning. Credit: Beth Bolles, UF IFAS Extension Escambia County

Dwarf Yaupon hollies will naturally form a mound without pruning.
Credit: Beth Bolles, UF IFAS Extension Escambia County

Yaupon holly fruit and foliage. Photo courtesy UF/IFAS.

Yaupon holly fruit and foliage. Photo courtesy UF/IFAS.

 

 

 

 

 

 

       

 

 

 

 

 

Plant Care

Yaupon hollies prefer to be planted in full to partial sun.  It is important to note that they are drought tolerant and require a site with well-drained soil.  Because only the female plants produce berries, it is best to purchase plant material when plants contain berries in late fall and winter.  Yaupon hollies spread readily by vegetative sprouts.  Sprouts should be pruned down to the soil line 2 – 3 times per year. They do not have many disease or insect problems, but scale, leaf miners, mites, and aphids can sometimes be a problem.

Fun Facts

The leaves of the yaupon holly contain a higher caffeine content than any other plant native to North America.  The Seminole Indians would purposely brew a concentrated “Black Drink” tea to induce vomiting and diarrhea for believed purification.  Southerners utilized the caffeine in the leaves during the Civil War.  If the leaves are steeped for a short period, a black tea or coffee substitute can brewed. A related species of holly (Ilex paraguariensis) from Brazil is used to make a drink called Yerba Mate, which is as popular in South America as coffee is in North America.

For more information on yaupon hollies, please visit the publication located at this link https://edis.ifas.ufl.edu/st311.

Waxmyrtle, an Overlooked Landscape Shrub

Waxmyrtle, an Overlooked Landscape Shrub

Waxmyrtle. Image Credit UF / IFAS Solutions

Waxmyrtle. Image Credit UF / IFAS Solutions

Myrica cerifera Southern Waxmyrtle, Bayberry is a large shrub to small tree that is now native to much of Florida and much of the Southeastern United States. It was introduced to Europeans in the 1700s and is considered native by many botanical authorities. Sources disagree to the validity of its native status. It is usually found as an understory plant in lightly forested areas, swamps, brackish areas, as well as around old home sites.

It was planted widely in the 18th,19th and early 20th century as a plant for medicinal and industrial purposes. Four pounds of its berries will yield one pound of wax for candle making. When processed, this wax was also used in  surgeon’s soap, shaving lather, and sealing wax. Fermented leaves were used to produce a substance which was said to treat fever, stomach aches, and headaches.

Southern Waxmyrtle can reach up to 25 feet but is best maintained as a 10-20 foot multi-trunked shrub or small tree. It can also be trained as a smaller hedge and several dwarf form exist. Landscapes are enhanced by the shrubs’ olive green foliage, leaf aroma, open, rounded form and waxy blue-green berries. Wildlife enjoy the berries as a food source as well. They can provide dappled shade for outdoor entertainment spaces or front entrances.

Waxmyrtle Leaves. Image Credit Brent Sellers - UF IFAS EXTENSION

Waxmyrtle Leaves. Image Credit Brent Sellers – UF / IFAS Extension

Another benefit of Waxmyrtle is that it can be used in tough-to-landscape roadside and coastal areas since it is both pollution and salt tolerant and will cease to require irrigation once it is established. ‘Pumila’ is a dwarf cultivar suitable to small spaces.

Waxmyrtle is susceptible to few pests and diseases but can occasionally be attacked by webworms, mites and caterpillars. These can be controlled by pruning out of infested areas, forceful applications of water or Bt (Bacillus thuringiensis for caterpillar). It is also occasionally susceptible to canker on old branches and Fusarium wilt in central and south Florida. It is also considered a weed in pasture situations.

 

References:
50 Common Native Plants Important In Florida’s Ethnobotanical History
Myrica cerifera: Southern Waxmyrtle
Texas Native Plant Database: Waxmyrtle
Evaluate and Enjoy Your Landscape This Fall

Evaluate and Enjoy Your Landscape This Fall

Fall is a good time to evaluate your landscape, learn from what has and what has not worked and formulate plans to improve your landscape.

Evaluate problem areas in lawn. Photo Credit: Larry Williams

Evaluate problem areas in lawn. Photo Credit: Larry Williams

Before your lawn and landscape plants go dormant, do a walk through of your landscape, make notes if necessary and visually inspect the plants. You get to see the plants that did great as well as the plants that were not so successful. You can make decisions on which plants to do away with, which to keep, which that might benefit from being moved to a more appropriate location, etc.

As you inspect your landscape, ask yourself questions. You can easily identify problem areas in the lawn now. As you identify problem areas in the lawn, attempt to determine why those areas aren’t doing so well. Begin formulating plans for correcting/improving those problem areas. Decide if renovating and replanting with grass is your best option. Or, something other than grass may be the best option, particularly if there is a history of problems with grass in a specific location.

It may be time to remove and replace an older, declining plant with something new. There may be a plant that hasn’t performed up to par but that would do better if moved to a more appropriate location – fall is a great time to relocate plants. Now is a good time to take a soil sample and take the guesswork out of liming or fertilizing. The UF / IFAS Extension Office in your County can provide information on how to have your soil tested.

This only represents a few ideas related to evaluating your landscape. You’ll probably think of many more as you’re out in the landscape. Taking notes will allow you to implement your ideas later.

Not only is fall a great time to enjoy the outdoors, there’s much that we can learn from our own landscapes this time of year. We can gather Information that will allow us to improve our own landscapes.

 

Bacterial Gall:  A Detrimental Disease of Loropetalum

Bacterial Gall: A Detrimental Disease of Loropetalum

Warm and wet weather in the Florida Panhandle presents the optimum conditions for the development of bacterial gall on loropetalums.  Shoot dieback is usually the first and most noticeable symptom of the disease.  The dieback can be followed down the branch to dark colored, warty galls that vary in size.  The galls enlarge and eventually encircle the branch resulting in branch or plant death.  Olive, oleander, and ligustrum are also hosts for the bacteria that causes the galls, Pseudomonas savastanoi.

Plant Dieback

Dieback symptoms on loropetalum leaf from bacterial gall. Photo Credit: Matt Lollar, University of Florida/IFAS

Bacterial Gall

Bacterial gall on loropetalum. Photo Credit: Matt Lollar, University of Florida/IFAS

 

 

The most common source of bacterial gall is from the plant nursery.  Prior to purchase, inspect plants for galls near the soil line.  If plants have already been installed in the landscape, remove any branches containing galls.  Pruning cuts should be made several inches below the gall.  After each cut, dip pruners in a 10% bleach solution or spray with isopropyl alcohol to avoid spreading the disease to other parts of the plant or other plants.  Prune during dry weather.

The best control for bacterial gall is selecting good quality plant material.  For more information on this disease, please visit:  Bacterial Gall on Loropetalum.  More information on disease issues in the home landscape can be found at:  Lawn and Garden Plant Diseases.