Biz Biriz — Community Garden Basics | bizbiriz.store
The sizes a community garden layout is planned with: full and half plots, bed widths, path widths, the reach rule and the square-foot planting grid.
Plot size is the first decision. A traditional full allotment plot in Britain measures 10 rods, about 250 square metres — the working unit a single gardener can keep. Many sites now let half plots of about 125 square metres, which suits gardeners who want a manageable commitment and lets a site hold twice as many members.
Bed size is a separate decision from plot size, and it is governed by the reach rule: beds are kept narrow enough to reach the centre without stepping on the soil. 4 feet (about 1.2 m) is the usual maximum width. Stepping on a bed compacts the soil, and compacted soil is the most common reason a bed underperforms.
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Paths run between beds so that the centre of every bed is reachable from the path. Path width is set by what has to move along them — a wheelbarrow, a water hose, two people passing — not by a fixed number.
Square foot gardening divides a bed into a grid of 1-foot squares. A standard bed is 4 feet (about 1.2 m) square with 16 squares, planted 1, 4, 9 or 16 plants per square depending on the crop. The grid gives the group a shared language: 'one square of carrots' means the same thing to every gardener on the site.
The grid also makes the layout legible from above. A bed drawn as a 4×4 grid on paper can be laid out on the ground with string and a tape measure, and every gardener can check their own planting against the same plan.
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