Disclaimer

Last updated: September 2026. Please read this page carefully before using our calculators.

Educational information only

All content on LeafLibrary — calculators, articles, tables, and examples — is published for general educational purposes. It is not horticultural or plant-safety advice and is not a substitute for a qualified professional. We are not horticulturist, cooperative extension service, or veterinarian (for pet exposure)s, and no client or advisory relationship is created by your use of this Site.

Care parameters describe what typically keeps each species healthy in average home conditions; your light, humidity, and heating setup create a microclimate that always modifies the rules. When plants are ill, diagnose gradually — change one variable at a time.

Pet-safety flags follow published toxicity references (such as ASPCA listings) for typical oral exposure. If you suspect a person or animal has chewed a toxic plant and shows symptoms, contact poison control or your veterinarian immediately rather than waiting.

Accuracy of calculations

We implement well-known, publicly documented formulas (see the methodology section on each calculator page and horticultural extension and ASPCA toxicity references as applicable). Even correctly implemented formulas produce estimates that depend on your inputs and assumptions. Real-world outcomes vary. Do not rely on a single web tool for a consequential decision.

Advertising disclosure

LeafLibrary is funded by display advertising served through Google AdSense. Advertisers have no influence over our content, formulas, or editorial choices, and placement of an ad is not an endorsement.

Errors and corrections

If you spot an error, please email contact@nftycalcs.com with the inputs you used. Verified corrections are published promptly.