I like to be as self sustainable as possible and at the end of every season I let a few of my crops flower and go to seed, or I save the seed from the fruit, eg, tomatoes and cucumbers. In other words. I save some seeds for next year. This is how our ancestors have always grown, and it is only during this last century that packets of seeds have been on sale to the general public.

These are some onions flowers that will produce seeds. They are groown from replanted, stored onions that had sprouted last year. I do still buy one or two packets of heirloom seeds every year to add different varieties to my crops. However, most of the other things I’ve grown from saved seeds, or from fruit or vegetables that I have bought and eaten. This saves me money. I don’t save seeds from the fruit and vegetables that I bought, usually, as they are are probably grown from F1 seeds, and so might not grow properly the following year. F1 seeds have been modified by humans and are not as nature intended and this means that they can be tasteless or revert to a parent crop. I have saved pepper and tomato seeds when I couldn’t afford them. though, and this year I planted a supermarket parsnip to see if any seeds will grow next year.

They are pretty and make great pollinators. Saving seeds saves me lots of money every growing season. In fact I spend very little growing food. I can grow my favourite varieties again, and again at no cost. It actually helps the plants adapt to my garden as well, as the seeds are saved from successful plants. I also have food security. My own personal seed bank of saved seeds means that if SHTF, and there are no seeds in the shops, I can still grow my own food. The image on the top of the post is saved rocket and Pak choi seeds. The image underneath is a carrot saved from last year and replanted in order to flower and produce seeds. 
When collecting seeds I have to be careful that the plants have not cross pollinated. Some crops are more prone to cross pollinating as they need the pollen from another plant to be fertilised, and so if you have different varieties of the same kind of vegetable it is more likely. My squash cross pollinated a few years ago and I ended with some funny elongated butternut squash. The easiest plants to save seeds from are lettuce, tomatoes, peas, peppers and beans as they are self pollinating and will always produce plants the same as the parent plant that you saved them from. The image below is of my butternut squash that cross pollinated. Luckily they tasted fine, but attracted lots of funny comments.

Here are some tips for saving seeds
- Collect seeds from healthy plants that have produced the fruit that you want. Getting seeds from the best specimens will produce healthy plants.
- If saving seeds from inside fruit or vegetables, make sure that the fruit is fully ripe, or even over rips, so that the seeds are mature.
- Make sure that you have saved enough seeds for your needs, as they all might not germinate the following year. Some plants I do multiple sowings eg peas and so I have to save a lot more than I think that I will need.
- Remove any flesh that is on the seeds and then fully dry them before storing. Tomatoes and cucumbers, for instance have a gel like substance around them to stop them germinating. I put them in a jam jar and add water and give them a shake. The seeds fall to the bottom of the jar and the gel and pulp come to the top. I do this a couple of times until the water is clear and then I drain the water out using a sieve and I spread them out to dry on kitchen paper or a silicone mat. Some seeds from plants like beans and peas I let dry on the vine in their pods in the sunshine. They rattle when they are dry enough to pick.
- Before storing, make sure that the seeds are fully dry or else they will go mouldy over the winter.
- Store them in a packet that is labelled with the variety of the vegetable, planting instructions and the date. I do usually recognise seeds but I have been caught out by not labelling some times, especially with squash.
- Store the seeds in a cool, dry, dark place where they can not get damp.
Some times I take my seeds to a seed swap so that I can get new varieties. If I have lots I often give some away as presents to gardener friends too. Most seeds are viable for between 1 and 3 years, though I have had cucumber seeds germinate 5 years later. Onion and lettuce seeds rarely last over a year. Below are some chilli seeds, peas and beans that I saved last year and grew my crops from this year, but have some left to sow with newly saved seeds next year.

Great advise thank you I’ve been too impatient trying to save early . X
Thank you for such detailed advice. I’ve always wanted to do this but never really known how
thanks Toni I have saved seeds from flowers, squash and tomatoes before, but want to do more, especially things like lettuce, rocket, spinach but not sure how though? are the seeds in the flower once they have bolted?
any advice would be very much appreciated
thanks
Yes the flowers go to seed or form seed pods once they have bolted x
My chard has bolted and I am hoping to save the seed. I have learned that waiting until the seed heads are almost completely brown, then cutting the plants down and hanging them up in the shed until completely dry works best. Tying paper bags round the seed heads saves any that fall off whilst hung up. Store seed in paper envelopes and keep cool and dry
True. They need to as dry as you can get them outside so that they do not grow mould. I some times use pillow cases if I do not have any paper bags
Great detailed advice, really helpful thanks Toni.
With onions do you have to grow the tiny bulbs first like the ones on sale? I picture it taking double time to grow them so taking up double the space. We do often let a few go to seed but just for the flowers.
I just plant the sprouting middle of a stored one. I cram lots together in a small space, an old toy crate
Great tips and reminders to save a little for next year!
Thank you
My celery scattered its’ seed and I had them growing in between my patio slabs. I replanted them in pots and they are now thriving. The rest of the seeds on the plant I saved to use in cooking or maybe plant sometime 😊 I save all the seeds my spinach, pak Choi, peppers, toms, sweet peas, nasturtium, centaurea, poppies, violas, love in the mist, snapdragons. Aww, I do love free seeds, and then I give most of them away 🌱🪴
Aww brilliant. There is something special about saving a plant that is growing somewhere it shouldn’t be.