Try Chinese Pistache for a Small Tree Selection

Try Chinese Pistache for a Small Tree Selection

Many people often request a recommendation for a small tree that will be suitable for their landscape and one to consider is the Chinese Pistache, Pistachia chinensis. Although not a native tree, Chinese Pistache does not have invasive potential so it can make a suitable option for both commercial and residential landscapes.

Berries also offer nice fall color. Photo by Beth Bolles, UF IFAS Extension Escambia County

The best features of Chinese Pistache are the fall color it offers with orange leaves, followed by clusters of salmon berries. It will lose its leaves as days shorten but you can enjoy the textured bark during the winter season. Compound leaves offer interest as well during the spring and summer. Adding some medium to fine textured foliage plants under and around trees will provide a nice landscape display.

Chinese Pistache has been an attractive feature in the Escambia County Demonstration Garden for over 20 years. Photo by Beth Bolles, UF IFAS Extension Escambia County

A positive feature of Chinese Pistache is that once it is established, it is tolerant of drought.  Expect trees to be about 25 to 30 feet in height with a 20 to 25 foot spread.  Each tree will have it own unique branch structure and some pruning will be required when trees are young to develop strong connections.  You may plant as a full sun tree to provide a little dappled shade for your garden or use as an understory tree in partial shade.

Video: Diagnosing a Black Twig Borer Problem

Video: Diagnosing a Black Twig Borer Problem

The bay laurel tree in the Escambia County Demonstration Garden had some dead branches on the outer canopy.  Further investigation led us to the culprit, the black twig borer. Learn more In the Garden with UF IFAS Extension Escambia County.

Know Your Patented Plants

Know Your Patented Plants

Gardeners love to share plants. My yard, like many of my gardener friends, is filled with plant gifts that were started from a cutting or division of a favorite plant.  These two methods of growing new plants is fairly easy once you learn the techniques and allows gardeners a way to save a little money and grow more plants for their yard, special community projects, or even some fundraising events.

In our enthusiasm over a favorite plant, gardeners must be aware that we are not allowed to propagate certain plants from cuttings or division. Many of our ornamental plants, especially newer introductions are patented plants.  These are seen as ‘premium’ plants that will hopefully be in demand by the public.  The plant developer or nursery invests in the patent in hopes that the plant will become the next must have ornamental.  Only businesses or individuals with authorization from the patent holder are able to asexual propagate these plants since the Plant Patent Act protects these new varieties for 20 years from the date of introduction.

So if you bought a beautiful Limelight hydrangea (Hydrangea paniculata ‘Limelight’ Plant patent #12,874) for your yard, you may not take a cutting to start a new plant, even if it is only for yourself.

If you want more than one Limelight Hydrangea, you must purchase it. Photo by Beth Bolles

If you want more than one Limelight Hydrangea, you must purchase it. Photo by Beth Bolles

When you visit the nursery, look on the plant label which will often indicate if the plant is patented. You may also look online to see if plant has a patent.

What’s Wrong With My Sago Palm?

Is the newest growth on your sago palm turning yellow, brown, frizzy looking and dying – is it a pest or disease or something else?

king sago palm with manganese deficiency symptoms

Photo credit: Mary Derrick

This sago palm is suffering from a classic case of manganese deficiency. When sago palms lack manganese, the newest leaves will develop yellow splotches or be entirely yellow. As the leaves die, they turn brown and take on a frizzled appearance. Sometimes the leaves or fruit may be smaller than normal. If left unchecked, the sago usually dies.

Manganese is a micronutrient required by all plants for normal, healthy growth and is most available for plant uptake when the soil pH is between 5.5 and 6.5. Soils in the Florida panhandle are often naturally low in manganese and then what available manganese is present can be unavailable for the plant to use if the pH of the soil is much above 6.5. Also, manganese tends to be leached from the soil when the pH is below 5.5.  Soil pH and nutrient testing is useful to determine if soils are nutrient deficient. Contact your county Extension office for information on getting that done.

[notice]Before treating, rule out an infestation of Asian cycad scale. Click here for a UF IFAS Extension publication on this damaging insect. Be aware that both are common problems for sago palms and that your sago may be afflicted with both![/notice]

If this is happening to a sago palm, the good news is that it is easy to correct. Manganese sulfate is readily available at garden centers, feed &seed stores and independent nurseries. Just make sure to get manganese sulfate and don’t confuse it with magnesium sulfate (Epson salts). The amount of manganese sulfate necessary to correct this deficiency  will vary with its size, soil type and pH. Sago palms in sandy, acidic soils require less manganese sulfate than those in high pH soils.   One ounce is sufficient for a very small plant in sandy, acidic soil. A very large sago in a high pH soil may require about five pounds, however. Spread the product evenly over the root zone and water in with about a half inch of water.

The affected leaves cannot be cured but new growth should return to normal. If the new growth is still affected, an additional application of manganese sulfate may be needed.  Once sago palms have suffered from a manganese deficiency, half the initial rate should be applied yearly to prevent the deficiency from re-occurring.

Even though sago palms are not true palms – they are cycads – their nutritional needs are very similar to palms. Most of the time they grow well without any supplemental fertilization, but if they do need fertilizing, use a 8-2-12-4 (the fourth number is magnesium) palm fertilizer with micronutrients and avoid using other fertilizer products in their root zones.

For more information on sago palms please see:

Cycas revoluta, Sago Palm