Seed Germination Rate Calculator
Germination Rate Test
Calculate germination percentage from a test batch
Seeds Needed to Plant
Calculate how many seeds to sow based on germination rate
Formula
Germination Rate = (Sprouted / Tested) × 100 | Seeds Needed = Plants Desired / (Germ Rate × Survival Rate)
Frequently Asked Questions
What is a good germination rate?
80-95% is excellent for fresh seeds. 70-80% is good. Below 70%, consider planting extra seeds or purchasing new stock. Germination rates decline as seeds age.
How do I test seed germination at home?
Place 10-20 seeds on a damp paper towel, fold it, put it in a sealed plastic bag, and keep it warm (70-80°F). Check daily for 7-14 days and count sprouted seeds.
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