🌿 OpenPlantDB

A free, public-domain (CC0) dataset of garden plants — germination, days to maturity, USDA hardiness zones, spacing, sun & water needs, and zone-aware planting windows. Browse it below or build on the JSON API.

… plants … categories CC0 public domain GitHub ↗ Download JSON ↓

JSON API

Read-only, CORS-open, no auth. Base:

GET/api/plants

List & filter: ?q= ?category= ?zone=9 ?sun=full ?season= ?limit= ?offset=

GET/api/plants/{slug}

Full record for one plant

GET/api/plants/{slug}/planting?zone=9a

Computed sow/plant window for your USDA zone

GET/api/categories

Category names + counts

GET/api/zones

USDA zones with typical frost dates

GET/api/stats

Dataset totals

GET/openplantdb.json

The entire dataset in one file

Interactive docs: /api/docs