The most satisfying way to store seeds (you'll actually stay organised)
Seed storage has a funny way of getting out of hand, at least it did for me. I’ve been gardening for over a decade now, and every year I never learn that there is such a thing as too many seeds… Well, sort of. I can’t help but get excited by the seed candy catalogues that come through my door and end up making many impulse buys of seeds I had no intention of growing. This year has been especially hard to resist that urge, after having grown so little last growing season due to moving house. I am also in the process of setting up a flower farm at my new home, which, as you might guess, means I need lots of flowers and therefore lots of seeds!
Several years ago, I was very kindly gifted some plastic box organisers by a friend, and an embossing label maker, which was far more exciting than it should be. (I know I am not alone in loving a bit of stationery or a random new gadget I didn’t know I needed in my life) Back then, I managed to organise my vegetable seed box, as that’s where my first love of plants came from and therefore where the seeds were mostly abundant. But as the years have gone on, my obsession with flowers has become greater and greater, and at some point, my seed storage has once again started to become a bit of an issue. My flower seeds have become too big for their boots - seed packets everywhere, no real system, and I could never find what I needed, so once again, the label maker came out.
Choosing how to organise your seeds can be trickier than you’d expect. There are plenty of options: alphabetical order, sowing months, plant families, or even grouping them by lifecycle - but not all of them work in practice. I ended up using a combination of lifecycles and plant names. While I liked the idea of one simple system, the reality is that some categories are much larger than others. For example, I only have a handful of perennial seeds, as I tend to buy these as plug or potted plants instead, since they’re slower to establish.
I also considered organising everything by sowing month, but many seeds are started in early spring, which would have made those sections overcrowded. That said, hardy annuals are a different story. I tend to sow these all at once in early autumn, so having them grouped together in their own box works really well. Because I mainly grow flowers for drying and arranging, I also have certain varieties like strawflowers that I grow in larger quantities, so it made sense to give them their own space. Ultimately, the best system is one that reflects how you actually grow. Seed collections are personal, and they don’t always fit neatly into one perfect set of categories - and that’s completely fine.
The real reason this setup works so well - Not only is the organising very satisfying, and can be completely personalised just in-case you have a spending spree on way too many sweet peas which couldn’t possibly fit in one organiser. But because both the boxes and labels are made from plastic, the seeds are safely kept away from any moisture (both in the air or from any watering you may be doing nearby). If you want to extend their lifespan as much as possible, you ideally want to keep them somewhere cold. I usually keep mine in a shed that stays out of direct sunlight, and I avoid storing them in the house because of the central heating. That said, if you’re lucky enough to have a big fridge- and housemates who don’t mind you taking up the space, that’s actually the ideal setup.
Seeds can end up being a bit pricey, particularly when you have little self-control and want to grow everything all at once, as I do! So the longer you can keep them viable, the better, and although I am not usually an advocate for plastic, in this case I think it’s definitely the way to go for longer-lasting seeds and labels which you will still be able to read in ten years' time! Once everything is stored properly, labelled clearly, and kept in the right conditions, it makes the whole growing process feel so much more manageable - and a lot more enjoyable too.
A Few Extra Tips for Storing Seeds Successfully
Once you’ve got your seeds stored in a cool, dry place and neatly organised, there are a few extra things that can make a big difference.
First, it’s worth keeping in mind that seeds don’t last forever. Some varieties will stay viable for several years, while others can lose their strength quite quickly. Adding the year to your labels as you sow your seeds is a simple way to keep track and avoid any disappointment later on.
If you’re ever unsure whether older seeds are still good, you can do a quick germination test. Just place a few seeds on damp kitchen paper, keep them somewhere warm, and see if they sprout. It’s an easy way to check before committing them to the soil.
When it comes to labelling, a little extra detail can go a long way. Alongside the plant name, you might want to include the variety and the year, and even a quick note about sowing times if you have space. It makes everything much easier when the growing season gets busy. I tend to use larger T-type plant labels for this reason.
It’s also worth thinking about moisture and pests, especially if you’re storing seeds in a shed or garage. Keeping everything in airtight plastic containers helps, but you can always add a silica gel packet or a bit of dry rice to absorb any excess moisture.
Finally, having everything clearly stored and visible really helps prevent overbuying -something I’m definitely guilty of! When you can see exactly what you’ve got, it makes planning so much easier.
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