Sources & Editorial Policy

Our aim is to make a planning decision easier to inspect. A useful page shows the method, identifies the inputs and preserves the context of its sources.

Sources and claims

We prefer original university extension publications, horticultural society guidance and official measurement references. A regional crop-spacing example stays regional. Container size, frame height and calculated fill volume are different quantities. We do not invent first-hand trials, qualifications, customer testimonials, current market prices or guaranteed yields.

Calculations are separate from crop advice

The calculators use geometry and named unit conversions. Bag counts round up after volumes are combined. A US liquid quart differs from a US dry quart. A planting grid counts positions only; the growing system, variety and local guidance determine suitable spacing.

Cost examples are fictional inputs unless explicitly stated otherwise. Replace them with your supplier’s actual volume, minimum-order and delivery terms.

AI assistance and publication checks

A locally hosted language model drafts from a restricted brief and stored source notes. A second pass by the same local model provides an auxiliary review; this is not an independent expert review. Structured checks validate required fields, source identifiers and example values. Failed drafts are held out of publication.

Site updates are built and checked before an immutable version is released. A source-check date identifies our latest recorded check, not proof that every upstream page has remained unchanged. We do not change a page date solely to imply freshness.

Corrections and limits

Automated checks cannot guarantee accuracy. We link the original sources so readers can inspect the full context. Report errors through Contact & corrections, including the affected page and the relevant source or calculation. A reported issue may cause us to revise or temporarily withhold a page.

Advertising and independence

Advertising, when enabled, is labeled and separate from editorial recommendations. We do not sell a favorable ranking or claim that a paid placement is an extension endorsement. No affiliate purchase links are used in the initial release.