Traditional fertilization and weed control programs

At Callahans we offer up to six different fertilization and weed treatments, each treatment is applied approximately 5-7 weeks apart. Our approximate treatment schedule is below:


Months treatment
is applied

1 – Early Spring


2 – Late Spring

April – May

3 – Early Summer

June – July

4 – Summer

July – August

5 – Late Summer/Fall

August –

6 – Late Fall

September –

Our six step program is listed above. You can choose a five step program which does not include the (5th application) late summer/early fall application.  You can also choose our four step program that includes applications 1, 3, 4, and 6 listed above.

Product Labels link:

Application 1Early Spring
Fertilizer at this time is crucial for an early spring green-up. These are also the months when we can most effectively control crabgrass with our pre-emergent. You must act quickly though to ensure the greatest percentage of control. Broadleaf weed control is included only after temperatures have reached 45 degrees (or higher), weather permitting.

Application 2Late Spring Fertilization along with broadleaf weed control will be applied at this time. This will be a post-emergent application for any weeds that are starting to appear.

Application 3– Early Summer
Much more difficult weeds come in at this time. Heavier strength treatments will be included for broadleaf weeds. Hot weather arrives and we also apply fertilizer to help sustain your lawn through the high stress of summer heat.

Application 4 Summer
Fertilizers are applied to prepare your lawn for early fall. Herbicides and insecticides are applied as needed for increased control of weeds and surface damaging insects.

Application 5Late Summer/Fall
Fertilizers are applied to promote deep root development and to promote thickening of your lawn. Broadleaf weed control is included as long as the temperature is above 45 degrees and weather permitting.

Application 6Late Fall
A winterizer fertilizer is applied and promotes healthy root development. It will also help your lawn green-up earlier next spring.

Additional services available:

Grub Preventative:

White grubs feed during the warm summer months and often cause extensive damage. They feed on grass, grass roots and garden crops.

If your lawn indeed has grubs, other predators (such as skunks, moles, and blackbirds) can often cause further damage to your lawn.

The best time to receive a grub preventative treatment would be in the summer and early fall. It is best to find them before they begin to hibernate deep in the soil, preparing to destroy your lawn next year.

If your lawn has brown spots that lift easily from the soil, this could be a result of grub worm damage.

Core Aeration:

Core aeration enables your lawn to increase root development as well as reduce thatch build up and soil compaction.

Core Aeration is the process of making thousands of small holes into a lawn. The holes allow fertilizer, water and air to reach the root zone quicker, which will help your lawn to breathe and grow.  This is traditionally performed in the early spring of fall.

Total Vegetation Control:

This service will help to dispose of any unpleasant weeds and grass that could be growing anywhere from a parking lot, along a fence line, or growing out of sidewalk cracks.  This can be incorporated in our residential maintenance packages at a very low cost.

Lawn Seeding:

Callahans offers various types of seeding depending on the needs of your lawn.

Lawn Rolling:

To help smooth out minor imperfections in the lawns terrain.  This is performed in the early spring while the ground is still soft with a one and a half ton roller.  It is highly recommended that you have your lawn aerated after rolling to relieve soil compaction that can be harmful to your lawn.  We offer a discount if you book aeration and lawn rolling together in the spring!

Over Seeding:

Also known as spot seeding this is the process of distributing seed over your lawn. It is ideal for an already established lawn that has thin or sparse sections. Over seeding will give you a thicker, greener lawn and it also discourages weed growth. This is traditionally performed in the early spring of fall.