Homestead Seed Quantity Calculator
Created by: Ethan Brooks
Last updated:
Calculate exactly how many seeds you need for your garden beds. Select your crop, enter bed dimensions, and get accurate seed counts with weight equivalents and succession planting options.
Homestead Seed Quantity Calculator
HomesteadingCalculate seed quantities for your garden beds.
Default spacing for Tomatoes:
24" between plants, 36" between rows
Override below for intensive planting
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What is a Homesteading Seed Quantity Calculator?
A homesteading seed quantity calculator helps you determine exactly how many seeds you need for your garden beds. Whether you're planting a small raised bed or sowing a quarter-acre market garden, accurate seed calculations prevent waste and ensure adequate coverage for a successful harvest.
Understanding Seed Spacing
Every crop has optimal spacing requirements based on mature plant size, root structure, and nutrient needs. In-row spacing determines how far apart plants grow within a row, while row spacing affects how far apart rows are placed. Proper spacing ensures adequate sunlight, air circulation, and access for harvesting.
Why Germination Rates Matter
Not every seed sprouts. Fresh, properly stored seeds typically germinate at 75-95%, but rates decline with age. To guarantee enough plants, gardeners plant 2-3 seeds per spot and thin to the strongest. This calculator accounts for germination rates so you purchase enough seeds without massive oversupply.
Buying Seeds by Weight vs. Count
Small seeds like lettuce (25,000 per ounce) and carrots (23,000 per ounce) are sold by weight since counting is impractical. Large seeds like beans (75-100 per ounce) and corn (120 per ounce) may be sold by count or weight. This calculator converts between the two so you can compare seed packet options.
Frequently Asked Questions
How many seeds should I plant per hole?
The number of seeds per hole depends on the germination rate and plant type. Most vegetables need 2-3 seeds per hole to ensure at least one germinates. Thin to the strongest seedling once sprouted. Plants with high germination rates (90%+) like radishes may only need 1 seed per spot.
What is a germination rate and why does it matter?
Germination rate is the percentage of seeds that will successfully sprout. Fresh seeds typically have 75-95% germination. Older seeds may drop to 50% or lower. This calculator factors in germination rates to ensure you have enough seeds for your planned planting area.
Should I buy seeds by count or by weight?
Seeds are sold both ways. Small seeds like lettuce and carrots are typically sold by weight (grams or ounces) since counting thousands of tiny seeds is impractical. Large seeds like beans, peas, and corn are often sold by count or by the pound. This calculator provides both seed count and weight estimates.
How do I calculate seeds for succession planting?
For succession planting, divide your total bed area by the number of plantings you plan. Calculate seeds needed for each planting separately, then multiply by your number of successions. Many gardeners plant quick crops like lettuce and radishes every 2-3 weeks for continuous harvest.
What spacing should I use for intensive gardening?
Intensive or square-foot gardening uses tighter spacing than traditional rows. You can reduce row spacing by 25-50% in raised beds with rich soil. However, maintain the in-row plant spacing to give each plant adequate room to mature. This calculator uses traditional spacing as a baseline.
Sources and References
- Johnny's Selected Seeds, "Seed Spacing and Planting Charts"
- University of California Cooperative Extension, "Vegetable Planting Guide"
- Oregon State University Extension, "Seed Germination and Viability"