Methodology

PoaIndex ranks cultivars within a species using historical NTEP trial data from sites near your location. The scoring approach is PoaIndex's own methodology — not an NTEP-endorsed ranking.

Active serving methodology: rec-v4-c1.

National turf-zone baseline

Your ZIP code places you in one of four turf-zone regions — cool-season, transition, warm-season, or unclassified. This is a starting point for species suitability, not a guarantee of how a lawn will perform on any particular property.