Test your soil once every few years to make sure it has the proper pH balance and mix of nutrients. You can usually get your soil tested at your state's local agricultural extension office, or ask your lawn care or landscape professional.

Spring is a good time to apply pre-emergent weed control for weeds such as crabgrass. One hint on timing is that when forsythia is in full bloom, it’s usually the perfect time to apply crabgrass weed preventer.

The decision about whether or not to fertilize should be based on the nutrition requirements needed by your soil conditions. Below are a few tips on fertilizing your lawn:

• Determine your soil nutrient needs through testing. If your soil does need nutrients, make sure you choose a fertilizer that matches those needs.
• Make sure you fertilize at the optimum time of the year for your variety of grass. Contrary to popular belief, not all grasses should be fertilized in spring. A few cool-season grass varieties do better when fertilized in fall. June is also a good time to fertilize many cool-season types of grass.
• In general, it is best to choose a slow-release or controlled-release fertilizer to reduce possible losses to the environment and increase nutrient absorption. In certain situations, it may help to use organic materials which can improve the health of your soil.
• It's important to read the label on the fertilizer bag and to know the exact size of your lawn. Using too much fertilizer can harm your lawn and cost you more than you planned. Conversely, using too little fertilizer won't yield the results anticipated. Several university studies show that under-fertilized turf can lead to a thin turf stand resulting in soil erosion and unwanted soil runoff. Always follow the label instructions.
• Before fertilizing your lawn or plants, always check with the local agricultural extension office. Some state and local governments place limits on when what kind, and what amount of fertilizer you can apply. Professional, licensed lawn care companies must follow state, local, and federal regulations.

Most plants, trees, and shrubs will benefit from proper fertilization with a slow-release product just before mulch is applied.

Rake the old leaves and debris from plant beds and create neat, natural edges around the beds using an edging tool.

in plant beds and around trees. Don't let the mulch touch tree trunks and never let the mulch accumulate to more than a 3-inch depth. Mulch not only makes planting areas look neat, but also helps to retain moisture in the soil, keeps roots cool in the summer, and insulates them in the winter. As mulch decomposes, it adds organic matter to the soil.

Once the weather has warmed up for the year, turn on your irrigation system and inspect it to see if it is in working condition. If you have a landscape or irrigation company, they can do this for you.