Sourcing Policy
Last updated: 2026-06-22
Source Hierarchy
Indoor Plant Guide uses the following source hierarchy, in order of preference:
- Official primary sources (government agencies, regulatory bodies, manufacturer documentation)
- Peer-reviewed research (academic journals, official statistics)
- Established industry publications (recognized trade publications, market research firms)
- Reputable news organizations (with editorial standards)
- User-contributed data (clearly marked as such)
Verification
Quantitative claims (statistics, prices, measurements) are verified against at least one primary or peer-reviewed source whenever possible. YMYL content is held to higher sourcing standards.
Limitations & Disclaimers
While we strive for accuracy, Indoor Plant Guide cannot guarantee that all information is error-free. Our content is for informational purposes only and does not constitute professional advice. Always consult a qualified professional for decisions related to indoor gardening, houseplant care, light and watering calculators, and plant species databases.
Source Updates
Indoor Plant Guide updates articles when underlying data changes. Articles older than 18 months undergo periodic re-review.