High Density Planting Chart for Vegetables (2026 Spacing Guide)
High Density Planting Chart for Vegetables (2026 Spacing Guide) A high density planting chart assigns each vegetable 1, 4, 9, or 16 plants per square foot based on its mature size — tomatoes get 1, lettuce 4, beets 9, and radishes 16. The rule comes from one formula: plants per square = (12 ÷ in-row spacing in inches)². A 4×4 ft bed holds 16 squares, so a single bed can grow anywhere from 16 tomatoes to 256 radishes. Match crops to the chart instantly with our Square Foot Garden Calculator(/garden/square-foot-garden-calculator). I have laid out dozens of intensive beds, and the most common mistake I see is reading the back of the seed packet literally. A packet that says "thin to 3 inches apart, rows 12 inches apart" is written for tractor-row farming. In a raised bed with no walking rows, that same carrot gets 3-inch spacing in every direction —...
Raised Bed vs In-Ground Garden Cost in 2026 (Full Comparison)
Raised Bed vs In-Ground Garden: Cost, Yield & ROI Compared (2026) A raised bed garden costs $100-$900 per 4x8 bed in 2026, depending on frame material and soil fill, while an in-ground garden costs near zero to $200 if your native soil is workable. Raised beds produce 2-4x more yield per square foot through intensive spacing and controlled soil, but they require 50-100% more water due to faster drainage. For 100 square feet of growing space, expect $400-$2,500 in first-year raised bed costs versus $50-$300 for in-ground, with ongoing annual costs of $50-$150 and $30-$80, respectively. Last spring I helped a neighbor plan 100 square feet of growing space in USDA Zone 6b. She built three 4x8 cedar raised beds at 12 inches deep, filling each with 32 cubic feet of a 40/40/20 topsoil-compost-vermiculite mix. Total first-year cost: $870 for lumber, hardware, and 4.2 cubic yards of bulk soil blend....