Evaluating the Fertigator Automatic Fertilization System for Your New Irrigation Installation

You're installing a new irrigation system and the contractor offers a "Fertigator" automatic fertilization system for $500 plus $70 per season for fertilizer concentrate. Is it worth the investment?

How Fertigation Systems Work

These systems inject liquid fertilizer into the irrigation mainline at a controlled ratio, delivering nutrients with every watering cycle. The concept—called fertigation—provides consistent, light feeding rather than heavy seasonal applications.

Cost-Benefit Analysis

When It Makes Sense

• Regular fertilizers: If you already fertilize 4-6 times per year, the system automates a task you're committed to.
• Water conservation: Healthier turf with deeper roots requires less frequent watering. Some users report 15-20% water savings.
• Convenience: Eliminates spreader calibration, granule cleanup, and scheduling hassles.

When to Skip It

• Occasional fertilizers: If you fertilize once a year or less, the ROI doesn't pencil out.
• Sandy soils: Rapid leaching may require higher concentrations than the system delivers.
• Local restrictions: Some municipalities restrict fertilizer application near waterways.

Alternative: Fertile Earth Pro-Feeder

Similar systems like the Fertile Earth Pro-Feeder offer comparable functionality. Compare concentrate costs, injection ratios, and warranty terms before deciding.

Bottom Line

For a dedicated lawn enthusiast who fertilizes regularly, a fertigation system can improve turf quality while saving time. For casual maintenance, the $500+ ongoing cost is hard to justify. Consider starting with conventional fertilization and adding fertigation later if desired—the injection point can be plumbed during initial installation.