Grass Atlas

Explore grass in 3D.

Choose a grass. Turn the 3D model to see its blades, roots, runners, and seedhead 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

Poa pratensis · Zones 3 to 7

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

What to notice

Blade tip

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.

Licensed field reference

**Established lawn**Photo: Pilot138-17 · CC BY-SA 4.0

ID fingerprint

Keeled, boat-shaped blade tip
Short membranous ligule; no auricles
Underground rhizomes form dense sod

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)

Model boundaries

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

Blade: Fine (2-4mm)
Tip & shape: Boat-shaped tip, V-shaped cross-section
Surface: Smooth
Spreads by: Spreading (rhizomes)

Checked againstPenn State Turfgrass Science University of Minnesota Extension

Next: Care guideLearn how to grow Kentucky BluegrassMowing · Watering · Lawn problemsRead guide

A photo is a lead, not a diagnosis.Confirm blade, collar, growth habit, and seedhead traits before buying seed or choosing a grass-specific treatment.

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