With optimal storage (dry and room temperature), our seeds have no specific expiration date. However, over time, the germination rate will decrease somewhat.
However, you can still try to sow the seeds later than the - depending on the variety we recommend - two or four years. Only probably fewer plants will germinate.
We only use seeds that are seedfast, other manufacturers often offer F1 hybrid varieties, these usually lose their germination faster. All our seeds are untreated (unpickled) and are produced GMO-free.