How Long Will Tomato Seeds Last?

Will 20 year old tomato seeds grow?

Yes! If tomato seeds are appropriately fermented, dried, and stored, they can last up to 10 years with a germination rate of 50%. If used within 4-7 years, the germination rate will be even better.

How can you tell if tomato seeds are good?

Water test: Take your seeds and put them in a container of water. Let them sit for about 15 minutes. Then if the seeds sink, they are still viable; if they float, they most likely will not sprout.

How long can seeds last without planting?

To keep the seeds cool (ideally, below 50 degrees), some people store them in a jar in their refrigerator or freezer. Seeds in good condition and stored properly will last at least one year and, depending on the plant, may last two to five years.

Are my tomato seeds too old?

Some seeds, like beans, peas, tomatoes, and carrots, can stay viable as long as four years. Seeds like cucumber or lettuce can stay viable up to six years. Storage conditions – Your old vegetable seed packets and flower packets will have a much better chance of keeping their seeds viable if they are stored well.

How do you store tomato seeds?

Storing Tomato Seeds

Gently scrape the seeds into labeled paper envelopes. Store them in a dry place at a cool, steady temperature. You could store envelopes in a tin or other sealed container, together with silica gel crystals to keep the air dry. Seeds can store for up to five years.

How do you rehydrate seeds?

What is the longest known time that a seed has remained viable?

The oldest seed that has grown into a viable plant was a Judean date palm seed about 2,000 years old, recovered from excavations at Herod the Great's palace on Masada in Israel.

Can I freeze tomato seeds?

Store the seeds.

Store them at a temperature between 32-41 degrees Fahrenheit. "I would store them in the refrigerator," Tychonievich says. "You can freeze them, but they have to be really dry or they will be damaged by the freezing temperatures.

Should you freeze seeds before planting?

Freeze seeds for 48 hours before germinating to stratify them. This is not necessary for all seeds, but we have used this technique for over 30 years with great success. When finished, seal and leave any extra seed in your freezer – they will keep better.

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