FAQ: How do I know what the appropriate moisture target for my species is?

[Center for Plant Conservation]

[Center for Plant Conservation]

Review recommended drying conditions for seeds stored in moisture-proof containers at various temperatures. The given drying temperature and RH combinations give a storage RH of 20% at the indicated storage temperature (Walters 2004).

Drying Temperature (°C)	Drying Relative Humidity for Storage at 15°C	Drying Relative Humidity for Storage at 5°C	Drying Relative Humidity for Storage at –20°C
25	28%	33%	35%
15	20%	26%	38%
5	14%	20%	32%

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