The Field Notes
Garden knowledge,
built to last.
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Greenhouse ventilation: how much vent area and airflow do you need?
Plan greenhouse ventilation with roof and side vents, rated exhaust fans, intake openings, circulation, thermostats, and shade.
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How much soil does a raised garden bed need?
Calculate raised bed soil volume in cubic feet, cubic yards, and bags using internal dimensions, actual fill depth, and a realistic settling allowance.
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Rear-tine tiller vs. cultivator: which tool fits the job?
Compare a tiller and cultivator by soil condition, tine placement, working depth, maneuverability, transport, storage, and rental value.








