Data Sources & Attribution
This project uses data from the following open sources
Plant Companion Data
Attribution:
Companion planting data sourced from Plant-Harmony by Micah Martin, used under the MIT License. The MIT License permits commercial and private use, modification, and distribution with attribution.
Dutch Growing Calendar
Attribution:
Planting calendar data for the Netherlands (USDA Zone 8b) adapted from Zaaikalender.com with attribution. This data includes optimal sowing dates, transplant timing, and harvest windows for Dutch growing conditions.
Weather Data
Required Attribution:
Weather data by Open-Meteo.com (CC BY 4.0)
The Creative Commons Attribution 4.0 International license requires that we attribute Open-Meteo and indicate if changes were made. We display forecast data with caching and localized alerts.
Icons
Attribution:
Icons provided by Iconify, which aggregates icons from multiple open source icon sets including Twemoji (CC BY 4.0), Material Design Icons (Apache 2.0), and others. Each icon set maintains its original license.
Legal Notice
This application combines data from multiple open sources, each with its own license terms. We are committed to proper attribution and compliance with all license requirements.
All data sources are documented in this application and in our source code repository. If you believe we have not properly attributed your work or have concerns about our use of any data, please contact us.
Last updated: February 9, 2026