Gerrit Niezen


This morning I discovered Trefle, an API for plants, through the r/hydro Reddit. What is exciting is that it does seem to cover a number of the variables I'm looking to include in my growing spreadsheet:

  • days to harvest
  • pH range
  • light range
  • temperature range

There are also other interesting fields, e.g.:

  • humidity
  • spread
  • average height

Trefle gets its information from a bunch of sources, including USDA, Kew Royal Botanical Gardens, Wikimedia and PlantNet.

While Trefle itself isn't open-source, it should always be free for open-source projects. Another alternative to consider, that is open-source, is OpenFarm.

I’m publishing this as part of 100 Days To Offload. You can join in yourself by visiting

#100DaysToOffload #day63 #hydroponics