Sources

We don't invent plant facts. Every claim the app shows you traces back to a named source, and every guide states clearly when something hasn't been verified yet.

What we cite from

• University extension services — advice follows your own state's (or province's) extension service first, not a one-size-fits-all national rule. When two universities disagree, we say so and show you both, rather than quietly picking one.
• USDA and plant-database records for hardiness zones, native range, and species identity.
• The ASPCA and comparable veterinary-toxicology references for pet safety — and we say plainly when a plant simply hasn't been checked yet, rather than guessing at "safe."
• Published grower and horticultural references for care, pruning, and propagation details.

How we handle disagreement and gaps

• When sources disagree, we show your own region's guidance, note that it's disputed, and let you see the other view — we don't discard the source that "lost."
• When something hasn't been checked, the app says so directly — "not yet checked" is a real, honest state, and it is never the same thing as "safe" or "none."
• Folklore is labeled as folklore. Popular gardening practices that research doesn't support — compost tea, Epsom salt, B1 rooting tonics, gravel in planting holes, homemade fungicides — are named as such, alongside what the evidence actually shows.

Full per-plant citations

Every individual plant guide in the app links back to its own specific sources at the point where the fact is shown — that level of detail lives inside the app itself, next to the fact it supports, rather than as one long disconnected list here.