Organizing Stored Seeds (Plus, What To Do With Old Seeds!) (2024)

, written by Barbara Pleasant Organizing Stored Seeds (Plus, What To Do With Old Seeds!) (1)

Organizing Stored Seeds (Plus, What To Do With Old Seeds!) (2)

As a housekeeper, I am far from gifted. I can stay on top of the necessary things – dishes, laundry, and the bathroom sink – but jumbled drawers and other small pockets of chaos take on a life of their own. A prime example is the bin where I store my garden seeds. I put off its annual cleanout because it feels like housework, but the job comes with a big reward: getting to order new seeds! To know what you need, you must first know what you have.

Organizing Stored Seeds (Plus, What To Do With Old Seeds!) (3)

Organizing Stored Seeds

As detailed in my 2011 article, Seed Storage Made Simple, I use a plastic bin kept in a cool, dark room to store my seeds. In many homes, under the bed in the coolest bedroom would be a comparable spot. I also use desiccant packets from shoes and other goods to maintain constant low humidity, because swings in humidity are the main enemy of stored seeds. Two commenters to that article mentioned using pill bottles and bead sorting trays for seeds, wonderful ideas that inspired a reuse for my empty mint containers.

Organizing Stored Seeds (Plus, What To Do With Old Seeds!) (4)

Another innovation I’ve made in recent years is to package my homegrown saved seeds in window envelopes gleaned from junk mail. I know at a glance how much seed I have without opening the envelope, and whether I have enough to share with the local seed bank, which provides its own envelopes.

I sort my seeds by plant type, with these general groups: cabbage family, cooking greens, flowers, herbs, onions, roots, salad greens, and tomatoes/peppers. For years each group was in its own messy plastic bag, but this year I switched to paper lunch bags because they are easier to label.

Some gardeners prefer to organize their seeds by planting date, which can certainly work. I suppose I use a hybrid system, because during the growing season, I keep a bowl of seed packets appropriate for immediate planting in the kitchen, and change up the selection every few weeks. Disorder sets in quickly in the seed storage bin, but the garden keeps getting planted anyway.

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Uses For Old Vegetable Seeds

I may not have much money, but I am rich in seeds, especially old vegetable seeds. This year I found many seeds in my collection more than 3 years old, which is not good unless the seeds are cucurbits or certain cabbage family crops, which often stay good for 5 years, as shown in the table below.

When to DiscardCommonly Grown Crops
After 5 yearsCucumber, melon, radish, collards, annual flowers
After 4 yearsEggplant, tomato, squash
After 3 yearsBeans, peas, cabbage family crops, carrot family crops
After 2 yearsLeek, mesclun, sweet corn
After 1 yearsOnion, lettuce
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After going through my seeds packet by packet, I amassed a small mountain of seeds so old they could not be trusted to make a good crop. In a second sort, I plucked out seeds of some organic seeds that are edible. Broccoli and radish seeds make great sprouts, and corn grows good microgreens. When you sow old seeds in the garden, you can waste two weeks waiting for a failed planting, but old seeds that punk out in a sprouting jar are no big deal.

As the payoff for these housekeeping tasks, I get to shop for seeds I really need! Armed with my list of most-wanted seeds, I can transform a wretched winter day by spending time studying new-to-me varieties of carrots, squash or basil. It's a seductive way to start the new season.

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Organizing Stored Seeds (Plus, What To Do With Old Seeds!) (2024)

FAQs

What can I do with expired seeds? ›

So, will expired seeds grow? Yes. Plants grown from expired seed packets will grow to produce healthy and fruitful harvests, just as their younger counterparts.

What do you do with leftover seeds? ›

One of the more practical methods for storing small quantities is to place leftover seed in sealable jars or other airtight containers and store in a cool, dark area such as the refrigerator (not the freezer). A layer of powdered milk or uncooked rice at the bottom of the container will absorb excess moisture.

When should you throw out old seeds? ›

Seeds that have been stored in a cool, dry place are generally viable for at least a year past the season for which they were packaged and may be good for up to five years.

How long are seeds viable after storage? ›

The highest seed quality was obtained after thirty and eighteen months of seed storage (91% and 89% of germination, respectively). During the 42-month storage period, the percentage of dead seeds (8%) and abnormal seedlings (7%) increased, while germination declined to 84%.

Are 20 year old seeds still good? ›

Most vegetable seeds remain good for about two to three years, but some, such as onions, deteriorate within a year. Lettuce, on the other hand, can successfully sprout after five years.

How do you know if old seeds are still good? ›

A germination test is the only meaningful measurement of seed viability, since it doesn't really matter how old the seeds are. If they germinate well, they're good, even if they're old. And if they don't germinate well, they're not good, even if they're fresh.

Can I just throw seeds? ›

Throwing Seeds Down: A quick but less effective method with lower germination rates and the potential for patchy results. Overseeding: A more involved process with higher success rates. It involves preparing the lawn bed, selecting the right seed, and ensuring proper seed-to-soil contact.

What to do with unwanted seeds? ›

Many seeds can be kept dry, cool and safe for a few years. Make sure you check the original packet they were in to see the use-by date. If you have plenty of time, why not either tape up the packet safely for use next year or put them into a new, dry and labelled paper envelope and file them away safely for later use.

Is it worth saving seeds? ›

Saving seeds allows you to select for particular characteristics you might like to cultivate by selecting fruits or plants to harvest from with those same traits. You can choose the best tasting, largest, earliest ripening fruits to save from that would ensure these same qualities in the next generation.

Can you use seeds that are 10 years old? ›

Seed viability depends on the type of seed, and just how old they are. Some old seeds will stay good and germinate for up to 5 years or longer, while others are only viable for a year or two.

How do you know when seeds have gone bad? ›

One method to check for seed viability is the water test. Take the seeds and place them in a container of water. Let the seeds sit for 15 minutes. If the seeds sink, they are still viable; if they float, discard, because they probably will not sprout.

Can stored seeds go bad? ›

Most seeds remain viable for a few years after the "packed for" date on the packet. Most seeds remain useful for several years beyond the “packed for” year. But it's also true that as seeds age, they become less viable — less able to germinate.

What seeds last the longest in storage? ›

Beans, like the Chocolate Runners, are among the longest storing seeds, often sprouting after a century in ideal storage conditions.

What happens when seeds are stored for too long? ›

Once the optimum storage time has elapsed germination rates reduce, though this does not necessarily mean that none will germinate. If you have old seed that you would like to grow it is still worth trying before you discard it. Some seeds do not store well; parsnip seeds, for example, should always be used fresh.

Can seeds be used after expiration date? ›

Seed Packet Expiration Date

Most seeds remain viable for a few years after the "packed for" date on the packet. Most seeds remain useful for several years beyond the “packed for” year. But it's also true that as seeds age, they become less viable — less able to germinate.

Can I use seeds from 2 years ago? ›

When stored in a cool, dry, and dark place, seeds for many garden vegetables will be viable for around 3 years. Some, like onions and parsnips, are viable for only a year or two. Others, like squashes and tomatoes, last longer, for 5+ years.

Can you throw date seeds away? ›

So next time you enjoy Ajwa dates, don't throw away the seeds! Instead, consider grinding them into a powder and incorporating them into your daily diet.

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