Day: April 11, 2025

  • Landscaping

    Landscaping

    When it comes to landscaping, simplicity equals good design and low maintenance. Low maintenance landscapes are designed so that every shrub, tree and flower-bed will all have definite functions. It is best not to over plant and to eliminate as many frills and flower beds as possible. Fewer, well placed gardens help reduce landscape maintenance.
     Arrange your plants in masses. Scattered plants need edging and weeding and can complicate mowing. Avoid planting grass where it is too shady, dry, wet or too steep to be safely mowed. Use ground cover or other plants in these areas. Mulches help to minimize weeds and help retain moisture. Use gravel, bark or pine straw and occasionally pull or spray weeds that come up. Don’t over fertilize. It isn’t a good horticultural practice and results in more pruning or mowing. It also invites insects to all the tender new growth.
    A bed around trees eliminates trimming and speeds mowing. It will help to protect the bark from damage by the lawn tools. Make the beds wide enough so you don’t run into low hanging branches when mowing. Define borders of walks, driveways and beds more clearly with metal, wood or brick edging. This also helps keep stones and mulch in place and the grass from growing into walks, etc. thus reducing trimming. Create paths with gravel, stepping stones or paving where foot traffic is heavy. Be sure walks and gates are wide enough for the lawn maintenance equipment. Power equipment speeds maintenance time.
    Use fences or hedges for privacy or a wind break. A fence would require less space than shrubs or you can select plants which are low maintenance. When planting a vegetable garden only grow what your family can use. Allow enough room between rows for easy cultivation. Power tilling would save hours of hand work. Narrow beds are easier to weed in the center. Large masses of annuals give you bold color with less maintenance.
    Prune trees so the wind can move through them and so more light reaches the grass through the thinned branches.
    Native plants are suited to our local climate and soil and are less susceptible to pest problems making them lower maintenance. Use plants with few insect and disease problems and those that are slow growing for less pruning. Buy quality plants. Replanting or treating sickly plants takes time and money. Inspect your plants before you buy them. Shop at reputable nurseries and garden centers that are neat and well cared for. Don’t buy plants with excessive new growth or with scarred, cracked or peeling trunks or branches. Plants should be compact and not leggy. Inspect leaves for proper shape, size and color and examine them for insects or disease problems. Make sure the root system is not growing out of the pot.
    Nothing is more important than good planting practices. Prepare your planting hole with water, fertilizer and any necessary amendments. Be sure your plant is in a site it prefers. Practice preventative maintenance. Keep plants and lawns well fed and watered and they will be vigorous and healthy. This is the best way to prevent problems which in turn increase maintenance needs.
  • Spring is in the Air

    Spring is in the Air

    April and May can be very dry months averaging only 2.03 inches of potential rain fall.  Add to that the higher temperatures, low humidity and wind and you end up with a high evapotranspiration rate.  Evapotranspiration (ET) is a process by which water is transferred to the atmosphere from vegetative surfaces.  ET consists of two components, evaporation and transpiration.  Evaporation is a physical process by which water is changed from a liquid to a gaseous state.  Evaporation takes place from free water surfaces such as ponds, streams, wet soils or wet vegetation.  Transpiration, the other component of ET, is a plant process of water loss.  That is where the term evapotranspiration came from.
    Here in South Florida our sandy soils can experience drought conditions after only a few days without rain. This condition is made worse by high temperatures. In order for our lawns to survive with little or no water they must be conditioned before a drought occurs.  Supplemental irrigation usually provides adequate water for lawns between rainfalls.  But in the past water management districts have enforced severe water restriction schedules, allowing watering only once a week or less. We are under a twice a week restriction now.  It is important to prepare your lawn for drought now so it will survive such severe restrictions as you never know when a drought will occur.
    Your primary objective is to grow a good healthy lawn that will survive with little or no supplemental irrigation.  A properly prepared lawn will have a deep, extensive root system that can withstand the stress of such reduced irrigation. This can be achieved through proper management practices.
    Proper irrigation is the first step.  Frequent, light watering can cause shallow root systems that are not good for a healthy turf.  To develop a deep root system, water only when the lawn shows the first signs of wilt.  This means twice a week at most and preferably only once a week.  Then apply enough water to wet the soil in the root zone, approximately one inch.
    Knowing the amount of water your sprinkler system applies to your lawn is an important step in using water efficiently.  Most people irrigate for a given number of minutes without knowing how much water they are really applying. Use this method to determine how long to irrigate to apply one inch to your lawn.
    Calibrating or determining the rate of water your sprinkler system applies is an easy job.
    • Obtain five to ten coffee cans, tuna fish cans or other straight sided containers to catch the irrigation water. Containers three to six inches in diameter work best.
    • Place the containers in one zone at a time. Scatter the cans at random within the zone. Repeat the entire procedure in every zone because there may be differences in the irrigation rates.
    • Turn the water on for fifteen minutes.
    • Use a ruler to measure the depth of water in each container. The more precise the measurement, the better your calibration will be. Measurements to the nearest eighth of an inch are adequate.
    • Find the average depth of water collected in the containers by adding the depths and then divide by the number of containers.
    • To determine the irrigation rate in inches per hour multiply the average depth of water times four.

    Try to calibrate the system during the same time the system is normally run so that water pressures are similar. Low water pressure can significantly reduce the amount and coverage of water applied by a sprinkler system. Never apply more than one inch of water per irrigation. Avoid mixing sprinkler head types. Mist heads apply more water than stream and rotor heads. Match sprinkler heads for uniform coverage. Check your system frequently. Replace broken heads, clear clogged nozzles and adjust the direction of spray. Now that you know your sprinkler system irrigation rate, you can more efficiently apply water to your lawn.

    It may take up to six weeks to condition your turf to survive several days or more without wilting between irrigation or rainfall.  During this time the root system is developing and growing deeper into the soil.
    Proper mowing practices are also essential for a drought prepared turf.  Every time a lawn is mowed the grass is stressed which reduces root growth.  Mowing frequency and height of cut should be carefully considered.  The majority of lawns on Marco Island are being cut too short.  Use the highest setting on the mower as a short cut will stress the turf.  By increasing the grass leaf area, more photosynthesis can occur.  This means more carbohydrates for plant growth, especially root growth.  The higher the height of cut on a lawn the deeper and more extensive the root system will be.  Adjust the frequency of mowing to the growth of the turf.  At least once a week in summer, while once a month may be enough in the winter. Try not to cut off more than a third of the blade with each cut.   Also, keep the mower blades sharp.  A clean- cut leaf blade will heal more quickly and thus lose less water than a shredded blade.
    Proper fertilization practices can enhance the drought tolerance of grass.  All the drought conditioning accomplished by proper irrigation and mowing practices may be eliminated by excessive nitrogen fertilization.  Shoot growth is enhanced and root growth reduced by excessive nitrogen.  Drought conditioning can only be accomplished by applying just enough nitrogen to obtain a small, but continuous, amount of growth.  Lawns should never be fertilized to deepen the green color since St. Augustine grass is naturally more yellow-green.  Potassium fertilization promotes increased root growth and thicker cell walls.  Drought tolerance is improved by applying potassium.  Grass requires potassium in nearly the same amount as nitrogen, especially in sandy soils where both can readily leach out.  In times of drought a 15-0-15 lawn fertilizer would be preferable over a 16-0-8 analysis. In addition, the palms in your landscape require more potassium than nitrogen and would also benefit from the higher potassium content in your lawn fertilizer.
    Pest control on lawns should be done with great care during the hot, dry spring months because pesticides can add extra stress through phytotoxicity (chemical damage to plants).  Pesticides should never be applied on a preventative basis. When a pest problem is diagnosed however, it should be treated appropriately as necessary.  Spot treatments can be as effective as treating the whole lawn.  Be particularly watchful for insects and diseases which attack the grass root systems such as grubs or root rots.
    If you have areas in your lawn which will not survive without extraordinary care consider using mulched beds, shrubs and ground covers which do not require supplemental irrigation.
    Even if we begin to have a lot of rain, we should not squander our water.  Prepare your lawn for drought and save our valuable water resources every day of the year.

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