Muscadine Grape: a Popular Fruit for North Florida

Muscadine Grape: a Popular Fruit for North Florida

The muscadine grape is a popular fruit that grows very well here in North Florida.  It has smaller leaves than bunch grapes and fruit are harvested singly, rather than in bunches.  Theses grapes can be enjoyed fresh and also be used for home wine-making.  One of the nice things about growing muscadine grapes in Florida is that they’re rarely bothered by insects or diseases.  They can easily be grown in your backyard garden.

Muscadine grapes are ripening now! Photo credit: Mary Derrick, UF/IFAS Extension.

Muscadine grapes are ripening now! Photo credit: Mary Derrick, UF/IFAS Extension.

Grapes will grow well in a variety of soils here in North Florida.  Upland soils with clay underlying at about three feet are ideal.  You should avoid poorly drained soils.  If the grapes are grown on soil with very good drainage, they should be set in the ground deeper than they were grown in the nursery on land with a high water table.  Grapes should be planted on raised beds at the same depth they were at in the nursery.

During the first year, grapes should be fertilized with a quarter pound of 8-8-8 or 10-10-10 fertilizer, applied in bands about a foot away from the plant, soon after growth begins.  Repeat applications in April, July and September.  Fertilizer rates increase each year, but they should never exceed six pounds per vine per year.

Weeds can sometimes be a problem with muscadine grapes.  To get rid of weeds, you can use a good herbicide, or you can cultivate around the plants.  The muscadine grape has a very shallow root system, however, so be careful when you’re weeding around the plants.  Mulches can be helpful in controlling weeds, but be sure to leave a circle of at least six inches around each vine uncovered.

Grapes need a generous supply of water to survive here in North Florida.  In fact, more first-year grapes die from a lack of water than from any other cause.  Make sure the plant receives about an inch of water weekly.  Muscadine grapes are rarely bothered by insects or diseases.  However, a spray program is advised to protect plants from possible damage by black rot or bitter rot.  Spraying should begin when the vines are in bloom, and continue a regular two week intervals until about a week before the harvest.  For specific information on the proper spray to use, you should contact your local County Agent.

Muscadine grapes mature in August and early September.  If you don’t plan to use them immediately, they should be picked from the vine when ripe and stored at 40 degrees Fahrenheit.

For more information, please see:

The Muscadine Grape

Muscadines Benefit from Timely and Artful Pruning

 

Just Say No to Chinese Wisteria

Just Say No to Chinese Wisteria

chinese wisteriaMaybe you have been seeing the Chinese wisteria, Wisteria chinensis, sporting its lavender blooms along the roadways this time of year. This vine may add a pleasant splash of color to the green leafy backdrop, but this is an invasive vine that has escaped our yards and gardens and is spreading on its own in natural communities.

The University of Florida Assessment of Invasive Plants determined that this vine has caused long-term alterations in ecosystem processes and displaces native vegetation. According to the non-profit Florida Exotic Pest Plant Council (FLEPPC), Chinese wisteria is a category II invasive which means that the species has escaped cultivation and is spreading on its own into other unintended areas.

wisteria_frutescens_native

American Wisteria ‘Amethyst Falls’ at GCREC Teaching Gardens. Photo credit: UF/IFAS Extension.

Fortunately, there are several great alternatives to Chinese wisteria. A native vine, American wisteria, Wisteria frutescens,  is a great alternative. The native cultivar ‘Amethyst Falls’  displays lovely fragrant lavender blooms in the spring and summer.

Evergreen Wisteria at the GCREC Teaching Garden. Photo credit: UF/IFAS Extension.

Evergreen Wisteria at the GCREC Teaching Garden. Photo credit: UF/IFAS Extension.

Another alternative is evergreen wisteria, Millettia reticulata, a twining vine (the stems twist around upright supports) that is semi-evergreen in the Florida panhandle. The deep mauve blooms appear throughout the summer months and persist often into the autumn.

So how do you get rid of the invasive Chinese wisteria? The vine can be severed at ground level and the stump immediately treated with a 25% solution of triclopyr or glysophate. There may be some resprouting of the vine from unaffected roots that would require retreating. Please click here for more details. The best time to control this vine is in the spring or summer when it is actively growing so that it will transport the herbicide to the roots and kill the plant.

For further information:

UF/IFAS Center for Aquatic and Invasive Plants: Chinese Wisteria

UF/IFAS Assessment of Invasive Plants: Chinese Wisteria

FLEPPC: 2013 List of Invasive Plants

UF/IFAS Gardening Solutions: American Wisteria ‘Amethyst Falls’

UF/IFAS Gardening Solutions: Evergreen Wisteria