Other grasses, depending on the variety, typically last up to three years in storage. Germination chances are still reduced within the storage period. For example, you need more seed to cover an area, compared to fresh seed, because a certain percentage will fail to sprout over time.
How long until grass first appears? Will. Does every little grass seed sprout and grow?. project is not completely under your control, but you can do a lot to improve the final result.. Read the article Watering New Grass Seed for guidelines.
The best advice for watering new grass seed is both simple and complicated.. This is how long it will take to actually see the grass growing.. As soil moisture below ground is more accessible to the roots, the plant is not so vulnerable now.
I've kept some rare prairie grass seed for over 10 years in a ziplock – in a. If the seed is kept in a controlled humidity, cool environment they will be viable a lot long.. seed and if is doesn't smell rotten (like compost) just go ahead and plant it.