Grass Atlas

Explore grass in 3D.

Choose a grass. Turn it to see its leaves, stems, roots, and seeds up close.

Choose grass

Source-backed 3D pilotDiagnostic features enlarged

Building botanical specimen

Kentucky bluegrass · Poa pratensisRotate the specimen or choose a focus view

Cool season

Kentucky Bluegrass

Zones 3 to 7

Tap a number on the grass, or choose a part here.

What to notice

The very end of a blade can look pointed, round, or like the front of a tiny boat. This small shape helps tell grasses apart.

On this grassKeeled, boat-shaped tip with the two sides meeting like the prow of a canoe.

Species details and sources

The gold standard of cool-season lawns. Dense, self-repairing turf with a distinctive blue-green color that thrives in northern climates.

Real photo

Quick way to spot it

Photos worth taking

Dark green with a blue tint; densest, most uniform carpet of the cool-season grasses
Fine, soft blades noticeably narrower than tall fescue
Close-up: blade tips are boat-shaped (keeled like a canoe bow)

What this model does not show

Diagnostic geometry is source-backed and intentionally enlarged to make the identifying parts easier to see.

A photo is a good start, not an answer.Check the blade, collar, runners, and seedhead before anyone buys seed or puts a product on the lawn.