Crabgrass seed has a long germination period; if conditions are right, it can germinate throughout the growing season.

There is a germination period for these things.

Suboptimal temperatures lead to lower success rates and longer germination periods.

It is usually expressed as a percentage, e.g., an 85% germination rate indicates that about 85 out of 100 seeds will probably germinate under proper conditions over the germination period given.

In fact, quinoa has a notably short germination period: Only 2-4 hours resting in a glass of clean water is enough to make it sprout and release gases, as opposed to, e.g., 12 hours with wheat.

During the germination period of reproduction the fish are exposed to low levels of estrogen which may cause reproductive dysfunction to male fish.

If nothing happens after the stated germination period, don't despair or blame the seeds.

The mother also carries the egg case (ootheca) with her during the germination period, rather than depositing it like other species, a practice which would leave them vulnerable in a human habitat to zealous attempts to wipe them out.

Thompson also debated the effect that the album's short germination period had on its overall composition, believing that the brief recording time lent the record "a feeling that, whenever you get these guys in the same room, this music [...] just comes tearing out".