Global Araç
Seed Spacing Calculator
Yatak: 8ft x 4ft | 8 domates x x x x x x
SFG (kare ayak bahçesi) küçük bir yatağa daha fazla sığdırır ancak zengin toprak gerektirir. Geleneksel sıralar çapa ile yabani ot temizliği için daha kolaydır. Tohum sayıları %50 çimlenme varsayar — tohumunuz eskiyse daha fazla alın.
Plan a garden bed: enter dimensions (length × width in feet or meters), pick the crop you’re planting, and the tool returns: number of plants that fit at the recommended spacing for that crop, seeds to buy (typically 2× the plant count to allow for thinning and germination losses), recommended row vs grid layout, and a spacing diagram showing where each plant goes.
Crop spacing recommendations come from established gardening references (e.g. the Farmer’s Almanac, the USDA, classic permaculture / square-foot- gardening references like Mel Bartholomew’s 1981 book). Standard spacings:
- Tomatoes: 24-36" apart in rows spaced 36-48" (large plants need air flow to avoid blight).
- Lettuce: 6-8" in rows of 12-15" (thinnings can be eaten as microgreens).
- Carrots: 1-3" in rows of 6-12" (always over-plant; thin aggressively for proper root development).
- Beans (bush): 4-6" in rows of 18-24".
- Peppers: 18-24" in rows of 24-30".
- Herbs (basil, parsley, cilantro): 8-12" apart, often planted in clumps.
Why 2× seeds: germination rates vary (60-95%), and thinning is part of normal cultivation — you plant more than you need, then thin to the strongest at true-leaf stage. For seedlings (transplants) you buy ready-grown, you don’t need 2×; the calculator adjusts based on your input.
Layout choice (row vs grid) affects total plant count. Row planting is traditional and works for big gardens with mechanical cultivation; grid (square-foot) planting packs more plants per area and works better for small intensive beds. Same crop, different layouts can differ by 20-40% in plant count.
Nasıl Kullanılır
- Measure your bed length and width (feet or meters; the tool handles either).
- Pick the crop from the dropdown (covers ~60 common vegetables and herbs).
- Pick layout: rows (traditional) or grid (intensive / square-foot gardening).
- Indicate whether you're sowing seeds or transplanting seedlings — affects whether you need 2× to allow for thinning.
- Read the output: number of plants, total seeds to buy, recommended row spacing, expected yield (rough; for crops the data covers).
- Use the spacing diagram to mark out planting positions in your bed.
Ne Zaman Kullanılır
- Planning a vegetable garden in spring before ordering seeds.
- Optimizing a small raised bed for maximum production.
- Estimating seed quantities to buy without over-spending or running short.
- Teaching kids / new gardeners about crop spacing and why it matters.
Ne Zaman Kullanılmaz
- Highly specialized crops (asparagus crowns, fruit trees, perennial herbs) — those have specialized spacing rules. Use crop-specific guides.
- Hydroponic / vertical / specialty growing systems — different math entirely.
- Large-scale farming — agricultural spacing accounts for tractor width, irrigation infrastructure, etc.
- Permaculture polycultures (multiple species in same bed using companion planting) — those need design experience, not just spacing math.
Yaygın Kullanım Senaryoları
- Educational use — demonstrating the underlying concept
- Onboarding a colleague who needs the same calculation/conversion
- Verifying a number or output before passing it on
- Quick calculation during a typical workday
Sık Sorulan Sorular
Why do I need 2× seeds for direct-sow crops?
Two reasons: (1) germination rate is 60-95% even with fresh, properly-stored seeds — some seeds simply won't sprout; (2) you plant 2-3 seeds per spot and thin to the strongest seedling at the 2-leaf stage. Without thinning, the seedlings compete and produce weaker plants. Standard guidance: plant 2× what you need, thin to recommended spacing.
Row planting vs square-foot gardening?
Row: traditional, works for any size garden, allows mechanical cultivation, lower density. Square-foot (grid): higher density, no wasted aisles, requires more soil quality and consistent watering, popularized by Mel Bartholomew (1981). For most home gardens, square-foot wins on yield-per-area; for hobby gardens or where you want kids to walk between rows easily, traditional rows work fine. Calculator handles both; pick based on your goals.
How accurate are the spacing recommendations?
Within typical home-garden tolerances. Recommendations come from agricultural extension services and reputable gardening books, but real spacing depends on: variety (heirloom tomatoes can be 5+ feet wide; bush varieties stay 2-3 feet), climate (more space in humid climates for air flow; less in dry), soil quality (better soil supports denser planting), and gardening style (organic vs intensive). Use the calculator as a starting point; adjust based on local advice.
What about companion planting?
Many crops benefit from companion planting — basil with tomatoes, carrots with onions, beans with corn (Three Sisters), etc. The calculator gives single-crop spacing; for companion planting you'd alternate species within the bed. Permaculture and biodynamic guides cover companion combinations.
Should I direct-sow or use transplants?
Depends on the crop. Root crops (carrots, radishes, beets) MUST direct-sow — they don't transplant well. Leafy greens (lettuce, spinach, arugula) work either way; direct sow is faster, transplants give head-start in cold climates. Tomatoes, peppers, eggplant: almost always start indoors / buy transplants because their growing season is too long to direct-sow in most US climates. Beans, squash, cucumbers: direct sow once soil is warm. Calculator adjusts seed quantities based on your input.
What about row spacing across crops in one bed?
Different crops need different spacing both within a row and between rows. Plan in zones: dedicate one section to tomatoes (their wider spacing), another to lettuce (tight spacing), another to carrots (very tight). Don't try to mix vastly different crops in one row — you'll over-space some and under-space others.