Mow high and use organic fertilizers
What is a beautiful lawn? Is it always a uniform, two-inch tall field of emerald green without a single pesky dandelion in sight? There may be no right answer, as beauty is mostly a matter of opinion. But there is only one definition of a healthy lawn, and that is one that is green in both color and character. A healthy lawn thrives in harmony with its surrounding environment, and in our area that means Fishers Island Sound.
When we use chemical fertilizers on our lawns, stormwater washes them into the nearest waterbody, where they feed the growth of excess algae. These algal blooms block sunlight from bottom-rooted plants like the eelgrass that shelters growing shellfish and other marine life. When the algae die, they fall to the bottom, covering many inlets and coves with smothering “black mayonnaise.” Excess algae foul boat engines, diminish our enjoyment of coastal waters, and harm the fishing, shellfishing, and tourist industries.
Chemical pesticides kill weeds and harmful insects, but they also kill beneficial insects and soil microbes. Pesticide runoff can kill immature fish as well as the aquatic insects and other invertebrates they feed on. Organic lawn care practices can eliminate weeds and harmful insects without sacrificing the environment.
The key to a healthy lawn is healthy soil, the foundation for healthy plants that are less susceptible to pests and disease. And the key to healthy soil is natural turf management– just as simple and effective as the traditional four-step synthetic fertilizer program and less expensive.
- Use organic fertilizers on flowers, shrubs, trees, and grass.
- Click here to see a list of products recommended by Chip Osborne (of Osborne Organics, Inc.), the top national expert in the field of natural lawn and turf management.
- Click here for a list of businesses in our region that carry these products.
- Test your soil in March or April to determine its health. A soil test is easy, quick, and cheap!
- See below for instructions on how to sample and where to send your samples for analysis.
- Have your soil test interpreted by someone who knows how to convert the recommendations from synthetic chemical to organic products. For help, contact CUSH or any of the accredited organic lawn care companies on this list. Apply only what the soil test indicates that your lawn needs. If needed, lime may be applied in early spring and early fall. The most critical times to apply organic fertilizers are late May and late September.
- Mow high (three to four inches instead of two).
- Water only if needed and no more than one inch per week including rainfall.
- Use compost and compost teas to build soil health. Just a quarter-inch application of a good organic compost once a year will do wonders.
- Overseed in spring or fall to bring new life to existing lawns and fill in open spots.
- Aerate to introduce air and space. Grass roots need space to grow in, and beneficial microbes need air and space to thrive.
- DEEP’s Organic Lawn Care website has information about soil testing and native landscaping.
- Contact CUSH for help in changing to organic lawn and turf management practices.
Home Ground Soil Sampling Instructions
Lime and fertilizer recommendations based on improperly taken soil samples may injure your plants.
Follow the instructions below to obtain a representative sample. Submit about ONE CUP of soil.
- Areas differing in appearance, slope, drainage, treatment or intended plant usage should be sampled and tested
a. The lawn should be sampled separately from the vegetable garden.
b. The blueberry patch should be sampled separately from the perennial garden.
c. Areas under shade trees should be sampled separately from the lawn surrounding them.
d. That portion of the vegetable garden recently limed should be sampled separately from the portion not limed.
e. The upslope, dry part of the lawn should be sampled separately from the downslope, wet part of the lawn.
f. Areas around shrubs should be sampled separately from the lawn.
- Where poor growth exists, take samples from both good and bad areas, if possible, and submit them separately.
How to Sample
- Using a spade, trowel or bulb planter (illustrated above), take cores or thin slices of soil from 10 or more
random, evenly distributed spots in your sample area, to the appropriate depth indicated above.
- Put the cores or slices of soil in a clean container, and thoroughly mix them. Transfer at least ONE CUP of the soil
mixture to the plastic bag and seal. Place the plastic bag in a mailing envelope or a small box along with this
questionnaire. (If samples are excessively wet, dry them at room temperature before putting them in the plastic
bag. Do not dry samples on a stove or radiator.)
University Of Connecticut – Soil Nutrient Analysis Laboratory
University Of Massachusetts – Soil and Plant Tissue Testing Laboratory