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Fertilizing & Weed Control

Fertilizer and weed-management recommendations begin with turf condition, weed identification, irrigation coverage, shade, soil, and timing. Any herbicide included in a project must list the target weed and treatment site on its label and be applied under applicable Colorado licensing requirements.

Fertilizing with Lawn Care and Weed Preventive

Slow-release fertilizer feeds over time rather than creating a sharp growth spike. Product selection, application rate, irrigation coverage, shade, soil condition, and timing all affect the result.

  • Feeds over an extended period
  • Can be paired with pre-emergent weed prevention
  • Requires product-specific application timing
  • Works best when irrigation and soil conditions are also addressed
Lawn care technician applying granular fertilizer with a broadcast spreader on a Centennial lawn

Pre-emergent prevention and post-emergent control

Pre-emergent herbicides can control specified annual weeds when correctly selected and timed before emergence; they do not control weeds already established. Existing weeds may require physical removal or a label-approved post-emergent treatment, and difficult perennial weeds may require repeat treatment. Product choice, rate, timing, site restrictions, and re-entry directions must follow the label and applicable Colorado requirements.

A project may include:

  • Slow-release fertilizer selected for the turf and site conditions
  • Weed identification and a label-directed management option where appropriate
  • Double-pass core aeration when compaction limits root-zone access

A complete growing-season approach

Pre-emergent and post-emergent products perform different jobs. The lawn’s existing weeds, turf condition, irrigation coverage, shade, and soil should be evaluated before selecting a treatment approach.

Pairing the program with double-pass aeration

Compacted soil limits how well water and nutrients reach the root zone. Outdoor Legacy’s double-pass core aeration opens that soil so fertilizer and irrigation can do their jobs more effectively.

That does not mean every lawn needs every service. Irrigation coverage, shade, mowing height, and soil condition all affect the result, and those basics should be corrected instead of asking fertilizer to solve the wrong problem.

Service Areas

Landscaping and sprinkler service near you.

Outdoor Legacy serves homeowners in Centennial, Greenwood Village, Parker, Denver Tech Center, Cherry Hills, and Castle Pines, Colorado.

Questions we hear about fertilizing & weed control

Will pre-emergent kill weeds that are already visible?

No. Pre-emergent herbicides can control specified annual weeds when correctly selected and timed before emergence. Existing weeds may require physical removal or a label-approved post-emergent treatment, and difficult perennial weeds may require repeat treatment.

Why use slow-release fertilizer?

It feeds over time instead of creating a sharp growth spike. That supports steadier color and growth and can reduce the need for repeated quick-release applications.

Should fertilizing and aeration be done together?

They pair well because aeration opens the compacted root zone to air, water, and nutrients. Whether both are needed depends on the lawn’s condition and timing.

The grass is greener on this side.

From spring startup through fall blowout—and from double-pass aeration to residential landscaping—request the service your property needs.