Trees and Shrubs for All Year Interest

Trees and Shrubs for All Year Interest

Trees and shrubs often serve a distinct purpose in landscapes, other than to provide color. They are planted to provide shade, screen a view or noise, or to soften the hardscapes of the home.

With a little planning, we can have both beauty and function from trees and shrubs.  Add a few trees and shrubs that have color in different seasons and your landscape will always be interesting.

The added benefit of growing trees and shrubs is that they are low maintenance.  Once the plants are established in the landscape, they will require very little water and only an occasional application of a slow release fertilizer.  A good layer of an organic mulch around the plants will help conserve moisture, prevent weeds, and keep root temperatures regulated during our temperature extremes.  You may have to do a little pruning every year to remove any diseased, damaged, or severely crossing branches.

Here is a list of plants to give you garden interest throughout all seasons:

Winter color

  •  Taiwan cherry (Prunus campanulata) is an underutilized ornamental cherry for the coastal south.  Clusters of dark pink flowers cover the plant which grows about 20 feet.
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Taiwan cherry

  • Camellia japonica is widely used in landscapes, but still an excellent choice for winter color.  Careful selection of types will provide a garden with color from November through April.
  •  Red maple (Acer rubrum)  will provide color in both the late winter and fall.  Flowers are brilliant red in late winter and leaves begin turning red in late October.
  •  Other choices include Oakleaf hydrangea, Florida anise, Red buckeye, and Japanese magnolia

Spring

  • Fringe tree (Chionanthus virginicus) can be in shrub or tree form and range in height from 10 – 20 feet.  Forms white clusters of showy fringe-like flowers in late winter and early spring before the leaves emerge.
Fringe Tree 2

Fringe tree

  •  Chinese fringe (Lorepetalum chinesis ‘Rubrum’) is a very popular shrub. Pink blooms are heaviest in the spring.  The plants can get up to 12 feet in height so plant it were it will not obstruct a view.
  •  Virginia sweetspire (Itea virginica) forms clusters of white flowers.  Plants offer purplish foliage in the fall.
  •  Other choices include Banana shrub, native azaleas, Indian hawthorn, and Deutizia,

Summer

  • Chaste tree (Vitex agnus castus) is a large shrub with fragrant leaves and spikes of purple flowers. Tolerates drought and develops interesting shape.
Vitex flowers

Chaste tree

  •  Loblolly bay (Gordonia lasianthus) is an evergreen tree that grows to 25-35 ft in height.  Large white flowers with yellow stamens resemble camellia blooms.
  •  Abelia spp has white flowers that appear over the entire plant.  It is attractive to butterflies .
  •  Other choices include Crape myrtle, Althea, Confederate rose, and Oleander

Fall

  • Bald cypress (Taxodium distichum) will become a large tree over time.  In the fall the feathery leaves will turn orange-brown.  Good tree for both wet and dry areas.
  •  Beautyberry (Callicarpa americana) a native that forms clusters of purple berries that line the stem.  Leaves turn yellow and provide fall interest as well.
  •  Cassia bicapsularis can reach 8-12 ft in height and will have bright yellow flowers that form in October and  persist until a freeze.

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    Cassia

 

Thinning Vegetable Seedlings

For best root development, thin carrots to 2-3 inches between each plant.

For best root development, thin carrots to 2-3 inches between each plant.

Many common cool season vegetable garden plants are started in raised beds by direct planting of seeds. It is important to follow the guidelines in the ‘Monthly Vegetable Planting Guide’ (Page 6) for plant spacing and seed depth.  It is possible to thin out seedlings that are growing too close, but seeds that are planted at the incorrect depth may not germinate.

Vegetable seedlings will need to be thinned out after germination to allow for adequate space for leaf or root development.  Crowded vegetables will compete with each other for water, nutrients, and sunlight and never produce quality plants.

Here are some tips for thinning seedlings:

  • When plants are about 1 to 2 inches tall or have two sets of ‘true leaves’, it is time to thin out any crowded plants.
  • Look up the proper spacing between plants and thin out appropriately.
  • Pull out seedlings with fingers or forceps to make space or use small
    scissors to cut off seedlings at the ground level.
  • It will initially look like there is lots of room between seedlings but realize plants will grow quickly to utilize all available space.

Fall Flower Color

Fall color in the Florida landscape may be a little different than more northern areas but it is just as dramatic with the right plant selections.  One of the favorite perennials that is in peak bloom right now is the Cassia or butterfly plant, Cassia bicapsularis.  Grown for its showy bright yellow flowers, this soft-wooded perennial can be a garden accent when grown as a small tree.  Plants normally grows as a multi-stemmed plant with a vase shape or rounded canopy.  Size ranges from 5-10 feet in height and the best flowering is when plants receive full sun.

Cassia_bbollesUF

An added benefit of this species of cassia is that it can serve as a host for sulfur butterflies.  Blooms will often last until first frost and plants may be injured by freezing temperatures.  Homeowners will cut back cold damaged stems and wait for regrowth in the spring.  During the growing season, larger plants may need support and summer storms can break some branches.  Despite these issues, the fall flower show makes this a highlight in a garden.  Learn more about this cassia from the University of Florida IFAS Extension.

Say No to Nitrogen

It is now too late for homeowners to apply nitrogen fertilzers to warm season lawns for the year.

Many fertilizers are available in the stores and  promotions are everywhere that state that now is the time for lawns to be winterized. Applications of nitrogen after mid September can lead to turf problems next spring.  Nitrogen encourages growth of the grass which uses up stored food.  As the weather frequently changes throughout the winter months, grasses may use up their food reserves and not have enough carbohydrates to regrow when weather consistently warms next year. 

Besides creating unnessary new growth as grasses enter winter dormancy, lawns receive additional stresses when gardeners add nitrogen this late in the season  One such issue with a late season application of nitrogen is that it can make the grass more susceptible to large patch fungus.  This fungus is active when soil temperatures range between 75 and 65 degrees F.  Nitrogen applications encourage lush growth which can increase the incidence of the disease.

Large Patch bbolles

Large patch fungus can be more of a problem on turf following late season nitrogen applications.

 

For those that feel it necessary to apply some type of fertilizer now, potassium may be applied for the next couple of weeks.  Potassium is often sold as a 0-0-60 and the rate is about 1.5 lbs. of the fertilizer per 1,000 square feet of lawn.

Learn much more about lawn fertilization from the University of Florida IFAS Extension.

Biting Flies This Fall

We often consider the end of summer a time when nuisance insects are decreasing in numbers, but there is one insect that is reaching peak numbers at this time of year.  The Stable Fly or Dog fly, Stomoxys calcitrans,  can occur at all times of the year, but populations are heaviest in late Summer through early Winter along the Gulf Coast.

Resembling the common house fly,  stable flies are persistent pests in their search for a blood meal.  They have a painful bite due to specialized mouthparts that resemble sharp thorns that rasp the skin.    Luckily, most people do not have an allergic reaction following a bite.

Stablefly_JFButler

Stable flies breed in many types of moist or decaying vegetation, including seaweed deposits along the beach.  Each female can lay about 500 eggs and the typical fly maggots feed in the vegetation before pupating into the adult.  The entire life cycle takes several weeks.

Spraying a pesticide to control adult stable flies outdoors is not a practical option for homeowners.  Rather, control methods should be directed at their breeding sites to reduce numbers.  This includes allowing manures, plant debris, or crop residues to dry quickly by spreading them thinly over an area or composting them properly.

Following hurricane events, local agencies may manage stable fly populations with pesticides, but these flies do not often warrant the use of such limited resources for control.

For more information, consult this UF / IFAS publiction about the Stable Fly.