Hard seed is perfectly normal to have in some seed varieties. Hard seed is the portion of the seed sample that does not germinate during the time period of the seed test, but is determined to be alive and respiring. The total viability (germ + hard seed) measures the ultimate plant producing ability of the seed lot. For best results we recommend cold stratification: 4 weeks in moist paper towel at 40 degrees F.
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Happy Planting!
Dec 21, 2023