Explore · Reference

The numbers, in one place

Seeding rates, planting calendars, germination temperatures, toxicity, mowing heights and rebates by state — the data tables behind every recommendation, sourced and dated.

Reference data

rates · calendars · toxicity · rebates

Editorial illustration introducing reference tables & data for planning an eco-friendly, low-input lawn

Where to start

When you want the exact figure rather than the explanation, start here. Each table pulls from extension services, USDA and ASPCA, with the source and last-reviewed date on the page. Use them alongside the calculators to plan a planting.

Reference tables

Browse the data tables

Coverage / Seed-Quantity Quick Ref

Table

Reference

Foot-Traffic Tolerance Chart

Table

Reference

Germination Time & Soil Temp

Table

Reference

Invasive / Banned Status by State

Table

Reference

Lawn-Conversion Rebates by State

Table

Reference

Mowing Height & Frequency

Table

Reference

Pet / Child Toxicity Table

Table

Reference

Planting Calendar by USDA Zone

Sun & Shade Tolerance Chart

Table

Reference

USDA Hardiness Zone by State

Table

Need a quick calculation?

Use the tools

Turn these numbers into a seed quantity and a planting date.

Calculators Seed products

New to the terminology? See the eco-lawn glossary.

“This page is general gardening information, not professional horticultural, legal, or veterinary advice. Verify your USDA hardiness zone and your local invasive-species and HOA rules before planting. Confirm pet/child safety for your situation. ”