About Seed Starting Calendar

Last updated: 2026-07-09

What We Do

Seed Starting Calendar is a free online tool that helps you plan indoor seed starting dates based on your last frost date and crop type. All calculations and lookups run instantly in your browser — no account required, no personal data collected.

Our Mission

We believe gardening and outdoor information should be accessible to everyone. Government data, regulations, and technical specifications are often buried in hard-to-navigate sources. Seed Starting Calendar consolidates this information into a single, easy-to-use tool that gives you answers in seconds.

How It Works

Enter your details and get results immediately. Our calculations are based on publicly available data from official sources. We regularly review and update our data to ensure accuracy.

Data Sources

Our data comes from authoritative public sources, including:

• NOAA frost date data
• Cooperative Extension Service seed starting guides
• Seed company germination and transplant timelines

Important Disclaimer

The results provided by Seed Starting Calendar are estimates for informational purposes only. They are not a substitute for professional advice. Always consult a qualified professional before making important decisions based on these results.

Privacy

We take your privacy seriously. Seed Starting Calendar does not collect personal information, require sign-ups, or sell data. Calculator inputs are processed entirely in your browser. Read our full privacy policy for details.

Contact

Have a question, found an error, or want to suggest an improvement? We'd love to hear from you. Email us at hello@seedstartingcalc.com.