Comprehensive Seed Saving Calculator
Calculate your savings from collecting and storing seeds - customize for any plant variety
Health & Safety Disclaimer: This tool provides general guidance for seed saving. Some plants may have specific handling requirements or may be toxic. Always research proper seed collection methods and wear appropriate protection when handling seeds or plants that may cause skin irritation.
Tip: Click "Add Plant Variety" to include all the different seeds you plan to save this season.
Common Garden Vegetables
Savings: $19.75
Savings: $13.50
Savings: $5.50
Custom Plant Varieties
Seed Storage Options
Selected: 3 years
Savings Summary
Standard Varieties Savings:
Custom Varieties Savings:
Storage Costs:
Net First Year Savings:
$0.00
$0.00
-$0.00
$0.00
Total Multi-Year Savings: $0.00
Based on 3 years of seed viability
Seed Saving Tips:
- Store seeds in cool, dry places away from direct sunlight
- Add silica gel packets to storage containers to remove moisture
- Label all varieties with collection date and plant details
Seed Saving: The Ultimate Gardener's Investment
Financial Benefits
- Save 80-95% on annual seed costs
- Avoid rising seed prices in commercial markets
- Eliminate shipping costs for mail-ordered seeds
- Trade surplus seeds with other gardeners
Beyond Economics
- Preserve rare heirloom varieties
- Breed plants adapted to your specific growing conditions
- Contribute to global crop diversity
- Develop gardening self-sufficiency
"The average gardener using our seed saving calculator reports saving over $120 annually after their first year of collecting seeds from their garden."
Essential Seed Saving Techniques by Plant Family
Solanaceae (Tomatoes, Peppers, Eggplants)
These fruiting vegetables typically have perfect flowers and are mostly self-pollinating. Wait until fruits are fully ripe or slightly overripe before harvesting. For tomatoes, ferment the seeds in water for 2-3 days to remove the gel coating before drying.
Cucurbitaceae (Cucumbers, Squash, Melons)
These plants have separate male and female flowers and cross-pollinate easily. If growing multiple varieties, hand-pollination with isolation may be necessary. Allow fruits to mature beyond the eating stage - they should be hard-skinned and fully colored.
Brassicaceae (Cabbage, Broccoli, Kale)
Most brassicas are biennial, meaning they won't produce seeds until their second growing season. They're outcrossers and need isolation to maintain variety purity. Allow plants to flower, then collect seeds when pods turn brown but before they shatter.
Apiaceae (Carrots, Parsley, Cilantro)
These plants produce umbrella-like flower clusters with tiny seeds. Most are biennial and will flower in their second year. Harvest seed heads when they turn brown but before they fully dry and shatter. Seed viability is typically shorter for this family.
Pro Tip: Avoid saving seeds from hybrid (F1) varieties as they won't breed true in the next generation. Instead, focus on open-pollinated and heirloom varieties which will produce plants similar to their parents.
Frequently Asked Questions
How accurate is this seed saving calculator?
Our calculator provides estimates based on average seed yields and current market prices. Actual results may vary based on specific plant varieties, growing conditions, and your seed-saving expertise. We recommend using it as a planning tool and adjusting expectations based on your own gardening experience.
Will all saved seeds germinate successfully?
Germination rates for home-saved seeds typically range from 60-90% depending on the plant variety, collection method, and storage conditions. Our calculator assumes proper seed saving techniques and includes a viability adjustment factor. For critical plantings, we recommend conducting a germination test before the growing season.
How do I prevent cross-pollination in my garden?
Cross-pollination can be prevented through several methods: physical distance between varieties (varies by plant type), timing plantings so different varieties don't flower simultaneously, using physical barriers like row covers or mesh bags over flowers, or hand-pollinating and then protecting the flowers. Research each plant's specific requirements for isolation distances.
Are there legal restrictions on saving seeds?
For home gardeners saving seeds for personal use, there are generally no restrictions. However, some commercially purchased seeds may be protected by patents or have licensing agreements prohibiting seed saving. Additionally, if you plan to sell your saved seeds, different regulations may apply. Always check seed packet information for any usage restrictions.
How long will my saved seeds last in storage?
Seed longevity varies dramatically by plant type. Under optimal storage conditions (cool, dry, and dark), some seeds like tomatoes and cucumbers can remain viable for 5-10 years, while others like onions and parsnips may only last 1-2 years. Our calculator allows you to adjust the viability years based on your storage methods and plant varieties.