Showing posts with label Plants. Show all posts
Showing posts with label Plants. Show all posts

Wednesday, December 7, 2011

Information on Saw Palmetto Plants

Seeds of saw palmetto are harvested from August to October.

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Native to the coastal plains from South Carolina and eastern Louisiana to the tip of southernmost Florida, the saw palmetto (Serenoa repens) is one of the few palm species native to the United States. Found growing in densest numbers in southern Georgia and the northern half of Florida, saw palmetto prospers in hot, sunny areas in seasonally dry sands, often under pine trees. This palm usually matures at 3 to 6 feet tall. A visit to Florida gives you an opportunity to taste and purchase palmetto honey, which comes from the nectar-rich flowers of saw palmetto.

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Saw palmettos gained their common name because of the numerous short, black spines that line the leaf stem petioles. Running your hand or other bare-skinned part of your body across the petioles would leave cuts like a saw blade. Each evergreen leaf is a handlike fan with numerous deep cuts. The leaves range in color from yellow-green to silvery blue-green. Slow growing, saw palmettos develop a large underground trunk that surfaces and remains prostrate on the soil surface. The crown of fronds rises from upright-growing tips on the trunk. In rare cases a saw palmetto's trunk grows fully upright like a tree.

Flowers and Fruit

Anytime from late February to late April across its native range, the saw palmetto bears clusters of fragrant, creamy white flowers. These tiny flowers occur on a low, branching structure called an inflorescence that rises from the base of the palm and remains well below the leafy fronds. Bees pollinate the flowers, creating a distinctly flavored and colored honey. Afterward, the flowers become olive-sized orange fruits that mature to black. One seed ripens inside each fruit. Flowering and fruiting occurs more abundantly after saw palmettos are burned by wildfire, and on plants larger than 2 feet tall.

Growing Saw Palmetto

Saw palmetto grows well in areas of the U.S. where winters are not colder than 10 degrees Fahrenheit, which correlates to U.S. Department of Agriculture plant hardiness zones 8 and warmer. They excel in any loose-textured soil that has good drainage and is not overly fertile. Plant a saw palmetto in full sun for best leafy development, flowering and overall uniform shape and attractive silhouette. Silvery blue-leaved forms of the saw palmetto are a bit faster growing and larger at maturity than the green-leaved type. Overly fertile soils coupled with irrigation causes saw palmetto to become a large clump with massive trunks and numerous suckering frond clusters.

Uses

The saw palmetto demonstrates excellent tolerance to summertime heat, drought and salt spray, such as near the ocean. Across the southeastern states, saw palmettos are used as a tough landscape shrub for naturalistic plantings or for restoration work. The fronds, especially of the silver-blue-leaved plants, may be cut and used as Christmas greenery. The fruits of saw palmetto, although edible, are not palatable. However, dried fruits, once the seeds are removed, are pulverized into a powder and rehydrated into a gel capsule for use as an herbal supplement.

ReferencesU.S. Forest Service; Serenoa Repens; Jill R. Barbour"A Gardener's Guide to Florida's Native Plants"; Rufino Osorio; 2001ResourcesNational Gardening Association: USDA Hardiness Zone FinderLearn2Grow: Serenoa RepensPhoto Credit Siri Stafford/Lifesize/Getty ImagesRead Next:

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Sunday, December 4, 2011

How to Care for Diseased Saw Palmetto Plants

Saw palmettos have thick, sharp leaves.

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The saw palmetto (Serenoa repens) is a familiar sight in the forests and wetlands of the Southeast. The plant's palm-like foliage and small stature make it a good choice as a foundation plant, in mixed borders and containers. Mature, established saw palmettos have a high tolerance for drought conditions, making it a good choice for rock gardens and arid landscapes, as well. Saw palmettos are virtually care-free but may contract fungal infections.

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Take a sample of the diseased area of the saw palmetto and have it analyzed, if possible. The cooperative extension service office in your area may be able to do this at low or no cost, or can direct you to the university in your state that performs the service.

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Rake away all weeds and other undesirable vegetation from around the saw palmetto, and collect fallen leaves. Dispose of the collected plant matter away from the garden to avoid spreading infection.

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Disinfect the blades of the pruning equipment. Cut away as much of the diseased area of the saw palmetto as possible. Dispose of it away from the garden.

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Apply a fungicide. Anthracnose, caused by the fungus Colletotrichum gloeosporioides, was discovered infecting saw palmettos in Florida. Cercospora leaf spot fungus also may attack saw palmettos. Use a general purpose fungicide if the disease has not been diagnosed, and follow label directions for timing and application rates. Fungicides are generally more effective in preventing infection than in treating it.

Tips & Warnings

Make your own garden tool disinfectant. Use household disinfectants full strength on pruning tools. Mix bleach or pine oil with water, using 3 parts water to 1 part bleach or pine oil. Mix equal parts rubbing alcohol and water.

Over-watering saw palmettos can cause root rot. If a lab analysis shows the plant is not suffering from a fungal disease, cut back on watering and improve drainage around the plants. If the stem and roots rot, the plant may fall over and die, anyway. Consider removing and replacing the plant.

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ReferencesFloridata: Serenoa RepensLearn 2 Grow: Serenoa RepensMissouri Botanical Garden: AnthracnoseUniversity of Florida IFAS Extension: Disinfecting Pruning ToolsClemson University; Index of Plant Diseases in South Carolina; James H. Blake et al.University of Florida IFAS Extension; Saw-palmetto: an Ecologically and Economically Important Native Palm; George W. Tanner and J. Jeffrey MullaheyMissouri Botanical Garden: Root, Stem, Crown and Collar RotsResourcesUniversity of Florida IFAS Extension; Serenoa Repens - Saw Palmetto; Edward GilmanUniversity of Georgia: Native Plant Database - Saw PalmettoPhoto Credit Jupiterimages/Photos.com/Getty ImagesRead Next:

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Saturday, December 3, 2011

Are Aloe Vera Plants Good for Lip Sores?

Aloe vera plants have spear-like, gel-filled leaves that can grow up to 36 inches long.

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Aloe vera is a succulent plant yielding two medicinal substances: latex and gel. Aloe latex is extracted from just beneath the plant's skin, and can be taken orally to treat constipation and a variety of other disorders. Aloe gel, the most commonly used form, is extracted from the plant's leaves to treat wounds and skin conditions, such as lip sores. Aloe products are available commercially, and the plant can also be grown as a houseplant.

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Pure aloe gel can be purchased or extracted from the plant by slitting one of the leaves lengthwise and squeezing out the gel. Aloe is also included as a skin soother in creams, ointments, lotions and cosmetic products. The percentage of aloe used in each product varies.

How It Works

Aloe consists of 99 percent water, as well as glycoproteins and polysaccharides, which are believed to stimulate blood flow and immunity and may produce a mild antibacterial effect. Glycoproteins speed the healing process by reducing pain and inflammation, while polysaccharides stimulate skin growth and repair, explains the University of Maryland Medical Center's website.

How to Use

Pure aloe gel or aloe products can be applied directly to the skin to treat lip sores in both children and adults. Before use, clean the area around the mouth thoroughly with soap and water and dry gently. Apply pure aloe gel liberally to the lip sore several times daily, or follow the package's instructions on creams or ointments containing aloe. Avoid applying aloe gel to open wounds.

Cautions and Risks

As of 2011, there is insufficient scientific evidence available to support aloe as a treatment for cold sores and other wounds. Consult with your doctor before using aloe to determine if it is an appropriate treatment option for your lip sore. Also, inform your doctor of all medications and supplements you are taking to avoid a potentially negative interaction with aloe products. Topical aloe may cause skin irritation in some individuals, according to WebMD. Discontinue use of aloe products if skin irritation occurs, and contact your doctor if irritation worsens or does not improve after discontinuing aloe use.

ReferencesUniversity of Maryland Medical Center: AloeWebMD: Find a Vitamin or Supplement: AloeWebMD: Vitamins and Supplements Lifestyle Guide: Aloe VeraPhoto Credit Hemera Technologies/PhotoObjects.net/Getty ImagesRead Next:

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