Lawn and Garden Care
Rules of Thumb for Water Use on Lawns and Gardens
- One deep watering is much better than watering several times lightly.
- Lawns need about 1 inch of water each week. If the weather is very hot,
apply an inch of water about every 3 days.
- Watering to a depth of 4-6 inches encourages deeper, healthier root
development. It allows longer periods between watering.
- To measure the water, put an empty tuna can (or cat food can) on the lawn
while watering. Stop watering when the can is full or if you notice water
running off the lawn.
Know Your Soil
Different soil types have different watering needs. You don't need to be a
soil scientist to know how to water your soil properly. These tips can help.
- Loosen the soil around plants so it can quickly absorb water and
- Use a 1- to 2-inch protective layer of mulch on the soil surface above the
root area. Cultivating and mulching reduce evaporation and soil erosion.
- Clay soil: Add organic material such as compost or peat moss. Till or
spade to help loosen the soil. Since clay soil absorbs water very slowly,
water only as fast as the soil absorbs the water.
- Sandy soil: Add organic material to supplement sandy soil. Otherwise, the
water can run through it so quickly that plants won't be able to absorb it.
- Loam soil: The best kind of soil. It's a combination of sand, silt, and
clay. Loam absorbs water readily and stores it for plants to use.
Water at the Right Time of the Day
- Early morning or night is the best time for watering to reduce evaporation.
- To help control where your water goes, water when it's not windy.
Rules of Thumb for Proper Fertilizer Use
Fertilizers provide nutrients necessary for plant health and growth, such as
nitrogen, phosphorus, and potassium. These are what N, P, and K stand for on
bags of fertilizer. Nitrogen (N) is needed for healthy green growth and
regulation of other nutrients. Phosphorus (P) helps proper roots and seeds
develop and resist disease. Potassium (K) is also important in root development
and disease resistance. When properly applied, the nutrients in fertilizers are
absorbed by plants and little of these nutrients enters ground or surface water
Use the Right Fertilizer
- Test your soil to find out what nutrients are needed. Contact your local
Natural Resources Conservation Service or Cooperative State Research,
Education, and Extention Service office to get information on obtaining a
soil test. Local fertilizer dealers can also be helpful.
- A soil test will help you understand what your plants require.
- Follow label directions.
- Choose a fertilizer that has at least one-fourth of the nitrogen in a
slow-release form, such as sulfur coated urea.
Mow Your Lawn Frequently
Leave the grass clippings to decompose on the lawn. Annually, this will
provide nutrients equivalent to one or two fertilizer applications. Set mower at
2 inches to reduce water use during hot weather.
Apply Fertilizer Properly
- It is best to apply fertilizer when the soil is moist and then water
lightly. This will help the fertilizer move into the root zone where it is
available to the plants, rather than stay on top of the soil where it can be
blown or washed away.
- Watch the weather. Avoid applying it immediately before a heavy rain
system is predicted to arrive. Too much rain (or sprinkler water) will take
the nutrients away from the lawn's root zone.
- Use the minimal amount of fertilizer necessary and apply it in small,
frequent applications. An application of 2 pounds of fertilizer five times
per year is better than 5 pounds of fertilizer twice a year.
- Calibrate your fertilizer spreader to be sure you know exactly how much
material is being discharged in a given space. Follow instructions
accompanying your spreader.
- When spreading fertilizer, cover ends of the lawn first, ten go back and
forth across the rest of the lawn, using half of the recommended amount.
Shut the spreader off before reaching the ends to avoid over-application.
Apply the other half of the fertilizer going back and forth perpendicular to
the first pattern.
- Dispose of fertilizer bags or containers in a safe and state-approved
Alternatives to Pesticides and Chemicals
When used incorrectly, pesticides can pollute water. They also kill
beneficial as well as harmful insects. Natural alternatives prevent both of
these events from occurring and save you money. Consider using natural
alternatives for chemical pesticides: Non-detergent insecticidal soaps, garlic,
hot pepper sprays, 1 teaspoon of liquid soap in a gallon of water, used
dishwater, or forceful stream of water to dislodge insects.
Also consider using plants that naturally repel insects. These plants have
their own chemical defense systems, and when planted among flowers and
vegetables, they help keep unwanted insects away. The table below contains a
partial list of nature's alternatives.
||mint, tansy, pennyroyal
||mint, garlic, chives, coriander, anise
|Bean Leaf Beetle
||potato, onion, turnip
|Colorado Potato Bug
||green beans, coriander, nasturtium
||garlic, onion, mint
|Imported Cabbage Worm
||mint, sage, rosemary, hyssop
||garlic, larkspur, tansy, rue, geranium
|Mexican Bean Beetle
||potato, onion, garlic, radish, petunia, marigolds
|Root Knot Nematodes
||prostrate rosemary, wormwood
||onion, garlic, cloves, chives
||radish, marigolds, tansy, nasturtium
||marigolds, sage, borage