Plant Spacing Calculator

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Planting Recommendations

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Enter plant type and garden dimensions to see layout visualization.

Planting Tips & Information

Select a plant type to see specific growing information and tips.

Plant Spacing Calculator

The Plant Spacing Calculator helps gardeners optimize their garden layout by calculating the ideal spacing between plants based on their specific needs. Proper plant spacing is crucial for healthy growth, maximum yield, and efficient use of garden space.

Why Plant Spacing Matters

Proper plant spacing ensures adequate air circulation, reduces disease risk, prevents overcrowding competition for nutrients and water, and maximizes sunlight exposure. Overcrowded plants are more susceptible to fungal diseases and produce lower yields.

Common Vegetable Spacing Guidelines

Small Plants (2-6 inches):

  • Carrots: 2-3 inches apart
  • Radishes: 2 inches apart
  • Green Onions: 4-6 inches apart
  • Lettuce: 6-8 inches apart

Large Plants (12+ inches):

  • Tomatoes: 18-24 inches apart
  • Peppers: 12-18 inches apart
  • Broccoli: 12-18 inches apart
  • Corn: 8-12 inches apart

Planting Methods Explained

  • Square Grid: Plants arranged in perfect squares - easy to manage and water
  • Traditional Rows: Plants in straight lines with walking paths between
  • Triangular/Offset: Alternating pattern that maximizes space efficiency

Garden Planning Tips

  • Consider mature plant size, not seedling size
  • Account for walking paths and maintenance access
  • Group plants with similar water and sunlight needs
  • Plan for succession planting to extend harvest
  • Leave space for plant support structures if needed

Factors Affecting Plant Spacing

Climate, soil quality, plant variety, and growing method all influence optimal spacing. In cooler climates, closer spacing may be acceptable, while hot climates require more space for air circulation. Rich soil allows for closer spacing than poor soil.

Using the Calculator Results

The calculator provides recommendations based on standard spacing guidelines. Use the visualization to understand how plants will be arranged in your garden. Remember that these are starting points - adjust based on your specific growing conditions and experience.