How long do Garden Seeds Last?
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I know many often ask this question, and there is some guidelines to go by..
but remember this, the viability of a seed clearly will depend on storage and care of the seed .
If you have seeds that have been laying around for some time in your home and you are unsure
if they are any good..
Before wasting your time and money planting them in soil.. Do this first..
The best way to really know is to test germination using the paper towel method.
Place around 10 seeds on a wet paper towel, write down the name, date ..
Fold over the paper towel place in a plastic bag and place in a warm area in your home..
Germination can be quick or slowly depending on the seed type..
I would check them in a few days , and repeat for a few weeks.. most should of germinated
by then unless it is a seed that can take up to 30 days to germinate..
You will know by the amount of seed that sprout if they are good enough to keep..
To make your life easier, do this method on your seeds, this way you will know right away
what is viable and not be waiting for them to pop out of the soil.. Once they sprout
place them in soil, water in and place under lights.. Really watch them well for a few days
till they take root in their new surroundings..:)
You can also cover them with a plastic lid or plastic film to be assured they
do not dry out during this critical time..
I hope that helps!
Now onto some guidelines of how long do garden seeds last?
OK this is the minimum years and can well succeed this is given proper storage
and cool temperatures..
Seed Storing advice: Seed is best stored through the winter at 50 degrees, at 50 percent
humidity.
A good way to store unused seed packets is to place them in a sealed jar with a
desiccant such as powdered milk or rice at the bottom (to absorb moisture).
Rice can be reused again as a desiccant if you dry it in the oven at a low
temperature. Store your seed jar in the refrigerator or a cool area, such as a basement.
Bush and pole beans – two years
Beets – two years
Broccoli, Brussels sprouts, cabbage, cauliflower, and kohlrabi – three to five years
Carrots – three years
Collard, Kale – three to five years
Sweet Corn – one year
Cucumbers – three years
Leeks, onions – two to three years
Lettuce – three years
Melons – three years
Oriental greens – three years
Parsley – two years
Parsnips – one year
Peas – two years
Peppers – two years
Radishes – four years
Rutabagas – three years
Spinach – one season
Squashes – three to four years
Swiss Chard – two years
Tomatoes – three years
Turnips – four years
Flower seed – annuals are generally good for one to three years; perennials for two to four years.
Quick video on some bean seeds I save.. and yes I pronounced Heirloom wrong..
It is said that parsnips, spinach , lettuce and alliums have the shortest seed life. The seed life may have something to do with the oil content of the seeds. Generally, the higher oil content of the seed, the decline in germination is quicker.
If you plan on saving your own seed year to year, your climate may have a lot to do with your success..Always if saving your own seed do a simple seed germination test.. This will clearly tell you if your seeds or your seed saving was a success..
Happy Growing!
Diane Mumm
More Helpful Info ===> Seed Germination Charts Growing from Seed Troubleshooting Know Your Zone
Buy Vegetable Seed– Buy Flower Seeds– Buy Seed Starting Soil– Buy Heating Mats– Buy Seed Starting Trays & Pots– Buy Growing Lights