Contact NPKGuide

Found a data error? Have a suggestion? Want to contribute? We would love to hear from you.

Report a Data Error

Accuracy is our top priority. If you find incorrect NPK data, wrong application rates, or outdated information, please let us know. Include the page URL and the specific error, along with a source if you have one.

Suggest a Plant or Feature

We are always expanding our plant database and calculator tools. If your plant is not covered or you have an idea for a new calculator mode, we want to hear about it.

Get in Touch

Email: [email protected]

We aim to respond within 48 hours.