Planning tool
Raised Bed Spacing Planner
Start from common bed presets before editing custom bed width and length.
Planning tool
Current bed-fit check
4 x 8 ft bed32 sq ft bed: 44 compact, 21 medium, 38 wide-spacing crop checks.
Raised bed blueprint
4 x 8 ft bed · 32 sq ft
Static bed blueprint shows the same reachable grid, compact rows, medium candidates, and wide-spacing crops.
Bed footprint32 sq ft
Compact candidates44 crops
Medium candidates21 crops
Wide-spacing crops38 need room
Default 4 x 8 bed-fit check
The default 4 x 8 ft raised bed is 32 sq ft and highlights compact rows before users edit width or length.
Compact bed candidates (44)
- French Breakfast Radish 288 plants; 24 columns x 12 rows at 2" in-row x 8" rows.
- Danvers 126 Carrot 192 plants; 24 columns x 8 rows at 2" in-row x 12" rows.
- Evergreen Bunching Onion 192 plants; 24 columns x 8 rows at 2" in-row x 12" rows.
- Astro Arugula 144 plants; 12 columns x 12 rows at 4" in-row x 8" rows.
- Sugar Snap Pea 120 plants; 24 columns x 5 rows at 2" in-row x 18" rows.
- Detroit Dark Red Beet 96 plants; 12 columns x 8 rows at 4" in-row x 12" rows.
- Purple Top White Globe Turnip 96 plants; 12 columns x 8 rows at 4" in-row x 12" rows.
- Sweet Alyssum 96 plants; 8 columns x 12 rows at 6" in-row x 8" rows.
Medium bed candidates (21)
- Bright Lights Swiss Chard 20 plants; 4 columns x 5 rows at 12" in-row x 18" rows.
- California Giant Zinnia 20 plants; 4 columns x 5 rows at 12" in-row x 18" rows.
- Chief Mix Celosia 20 plants; 4 columns x 5 rows at 12" in-row x 18" rows.
- Common Anise 20 plants; 4 columns x 5 rows at 12" in-row x 18" rows.
- Common Thyme 20 plants; 4 columns x 5 rows at 10" in-row x 18" rows.
- Florence Fennel 20 plants; 4 columns x 5 rows at 12" in-row x 18" rows.
- Genovese Basil 20 plants; 4 columns x 5 rows at 10" in-row x 18" rows.
- Globe Amaranth Gomphrena 20 plants; 4 columns x 5 rows at 12" in-row x 18" rows.
Wide-spacing crops (38)
- Delicata Winter Squash 1 plants; 1 columns x 1 rows at 36" in-row x 60" rows.
- Hale's Best Jumbo Melon 1 plants; 1 columns x 1 rows at 36" in-row x 60" rows.
- Small Sugar Pumpkin 1 plants; 1 columns x 1 rows at 36" in-row x 72" rows.
- Sugar Baby Watermelon 1 plants; 1 columns x 1 rows at 36" in-row x 72" rows.
- Waltham Butternut Squash 1 plants; 1 columns x 1 rows at 36" in-row x 72" rows.
- Green Globe Artichoke 2 plants; 1 columns x 2 rows at 36" in-row x 48" rows.
- Joe Pye Weed 2 plants; 1 columns x 2 rows at 36" in-row x 48" rows.
- Black Beauty Eggplant 4 plants; 2 columns x 2 rows at 24" in-row x 36" rows.
Inputs
- Default 4 x 8 bed-fit check
- Use the 32 sq ft default result to see compact, medium, and wide-spacing crop examples before entering custom measurements.
- Common bed preset
- Start with 4 x 8, 3 x 6, or 2 x 4 ft layouts so users can estimate bed fit without typing dimensions first.
- Custom bed width and length
- Edit dimensions only when the preset does not match the bed you can reach and maintain.
- Catalog in-row spacing
- Uses each seed entry spacing value as the column spacing estimate in the bed-fit calculation.
- Catalog row spacing
- Uses each seed entry row-spacing value as the row estimate before capping large non-container crops.
- Selected seed
- Switch seed cards in the catalog to compare compact roots, greens, herbs, flowers, and larger warm-season crops.
What it returns
- Plant count estimate for the selected seed and bed dimensions.
- Column and row counts based on catalog spacing and row-spacing data.
- Spacing summary that matches the seed detail panel.
- Large-crop cap for non-container entries so very wide beds do not imply unrealistic dense plantings.
- Internal links to spacing, watering, soil-prep, and rotation support paths.
Planning guidance
- Reachable width
- Use 2 to 4 feet wide beds as the common starting point, then keep beds narrow enough to reach the center without stepping in.
- Compaction rule
- Avoid stepping in the bed; use paths around the bed so the planting area stays loose enough for productive roots.
- Watering caveat
- Raised beds dry out more quickly than in-ground beds, especially during hot and dry weather.
- Rotation caveat
- Use multiple smaller beds when possible, then avoid planting the same crop family in the same bed for 3 to 4 years.
Bed-fit catalog paths
- Full Seed Catalog 103 varieties with spacing data
- Vegetable Garden Planner 44 vegetable entries
- Container Garden Planner 72 compact and container-ready entries
- Part-Shade Garden Planner 26 leaf, root, and herb entries for lower-light beds
- Cool Season Garden Planner 38 spring and fall entries
- Warm Season Garden Planner 55 summer entries with wider spacing checks
- Seed Spacing and Thinning Planner Check final plant spacing and thinning before trusting bed-capacity estimates
- Garden Watering Planner Adjust irrigation because raised beds dry faster than in-ground beds
- Garden Soil Prep Planner Check soil tests, drainage, workable moisture, and compaction before filling beds
- Crop Rotation and Companion Planner Keep same-family crops out of the same bed for rotation planning
Compact bed examples
- French Breakfast Radish 2" spacing · 8" rows · 28 days
- Evergreen Bunching Onion 2" spacing · 12" rows · 65 days
- Danvers 126 Carrot 2" spacing · 12" rows · 70 days
- Sugar Snap Pea 2" spacing · 18" rows · 62 days
- Astro Arugula 4" spacing · 8" rows · 35 days
- Vit Mache Corn Salad 4" spacing · 12" rows · 50 days
- Purple Top White Globe Turnip 4" spacing · 12" rows · 55 days
- Detroit Dark Red Beet 4" spacing · 12" rows · 58 days
- Hollow Crown Parsnip 4" spacing · 18" rows · 120 days
- Sweet Alyssum 6" spacing · 8" rows · 50 days
- Bloomsdale Spinach 6" spacing · 12" rows · 42 days
- Santo Cilantro 6" spacing · 12" rows · 50 days
Source basis
- UMD Extension building raised beds for vegetable gardening Raised-bed width, permanent paths, soil compaction, yield, watering, and bed-dimension planning guidance
- UMN Extension raised bed gardens Reach-based bed width, watering, crop rotation, soil testing, and avoid-stepping-in-beds guidance
- Illinois Extension vegetable gardening with raised beds Four-foot reach, uniform spacing, no-step bed layout, and compaction-reduction guidance