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Tomato Plant Spacing Calculator: How Far Apart to Plant Tomatoes

Tell it your tomato type and your bed size, and it tells you the right spacing plus exactly how many plants fit. No more guessing, no more overcrowded jungles.

Tomato Plant Spacing Calculator

How far apart to plant, how many fit your bed or pots, and a to-scale map of the layout. Spacing follows your support and pruning, which matter more than the plant type alone.

Spacings follow extension-service ranges. Space toward the wider end in humid climates where disease spreads fast, and you can go a little tighter in dry, breezy spots. Every plant still needs airflow, so resist squeezing in one more.
The standard answer to how far apart to plant tomatoes: 18 to 24 inches between staked determinate plants, about 24 inches for trellised indeterminate vines with 36 to 48 inches between rows, and up to 36 inches for sprawling plants. Dwarf varieties squeeze into 12 to 14 inches. The calculator handles the row math for your actual bed so you get maximum plants without the overcrowding that invites blight.
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