…and now for something completely different…
Canoe bow waves are quickly lost
on the shoreside
But go on out of sight
on the lake side.
The constant swish-swish of skis
On a day long ski.
The constant swish-swish of wiper blades
On a day long drive.
My dog, trotting barefoot
Steps on a garden slug
Nothing of it.
Word spreads quickly
as I approach the pond.
All becomes quiet.
Hidden in the vines
a large warted cucumber
jumps out of reach.
of marshmallow snow
on a branch,
await the trigger of my hat
to melt their way down my back.
Deep in the tomato jungle
Fruits of yellow, purple and red
Tell of their readiness
To go to market.
Snowflakes hurry through my flashlight beam,
As my boots knead new snow with spring mud,
On my nightly Hajj to keep the boil alive,
For as long as possible until the dawn,
To match the power of the flowing sap,
With my meager evaporator and will.
The prize at the finish line are jars of syrup
Tomato Seed Production
by Tom Roberts, fall 2004
by the Pound
We integrate tomato seed production at Snakeroot Organic Farm into our overall
tomato production and marketing strategy.
Most of our quarter acre of tomatoes are marketed
fresh at the six farmers' markets we attend each week. We grow twenty to thirty
varieties, hybrids and open pollinated; cherries, standards and paste; reds, pinks, purples
and yellows. About half of the number of varieties are heirlooms and half modern
hybrids; however heirlooms make up about 80 percent of our production area.
Starting in late August we continuously use two of our four dehydrators for drying
tomatoes. Drying tomatoes makes good use of fruit with defects that won't go to the
fresh market. Additionally we offer 20 pound boxes of canning tomatoes at our
Yet drying and canners alone can't use up all those otherwise fine tomatoes with
growth cracks, wireworm holes, mouse bites, and so forth. This is where seed saving
comes in. Of course, saving my own seed also saves on the expense of buying seed, and assures that if a seed
company no longer has an heirloom variety available, I need not worry since I am my own supplier. Every year we
trial several new heirloom varieties, and if we like one especially well, we'll never buy that seed again! This
is one reason why seeds company prefer to sell hybrid seed. Tomatoes in general tend not to cross-pollinate,
although some of the potato-leaved varieties will cross more readily. Those types we isolate in the years we
are planning to save their seeds. Remember, in one year you can easily save ten years worth of seed, so not
every variety you save needs saving every year. Cherry tomato seeds, although smaller than regular tomato seeds,
are saved exactly the same way. You can also save seeds from hybrid tomatoes, but the resultant offspring will
display great variation, with few looking like the hybrid parent. Continually selecting seed from those
variations can lead to some very interesting "new" tomato varieties. This, in fact, is how we have
produced our Snakeroot Golden Arrow and Snakeroot Golden Cherry tomatoes.
At the start of my first year of serious tomato seed production, when I had over
two pounds of seed committed to FEDCO Seeds, I began by slicing tomatoes and
scooping out the pulp and seeds into a five gallon bucket, just like the book said
to do. Long before I filled my first bucket this way, I determined that this clearly was not the way to do
it—at least if I was ever going to get anything else done.
So I just started throwing the whole seed tomatoes into a bucket, filling one bucket after
another, until I had two dozen buckets filled with tomatoes for contracted seed plus several more for varieties
just to save for our farm use. Clipped to the rim of each bucket is a clothespin holding a slip of cardboard
with the variety name in indelible marker. Cardboard, like from a cereal box, holds up better than paper in the
weather. A warning here: this rotting of the tomatoes in buckets is a very stinky process, one better done outdoors than in
the kitchen or basement.
Now I was faced with the prospect of still having to remove the seeds from inside the
tomatoes. Experimentation determined that a strong spray from the hose wouldn't break apart the tomatoes. The
kitchen potato masher seemed like it would work, but it didn't. I even considered removing my shoes and
squashing them grape-fashion. After spending several days eyeing all those buckets while pondering how to
proceed, Lois's daughter Lori suggested a drill powered paint mixer—she even bought one for us. That did
If you've never seen one, a paint mixer is a rod about 18 inches long, one end of which fits
into a power drill, and the other is equiped with a loose corkscrew-like fixture that actually does the job of
mixing the paint—or in my case, the tomatoes.
Before mixing, all the tomatoes should be ripe to the point of falling apart. A bucket
should be no more than about three quarters full, lest the swirling tomatoes spill over the rim. Mixing a
bucket takes about thirty to forty-five seconds during which time the bucket contents are tranformed from
individual tomatoes into tomato soup—just the right consistency to leave for a week to ferment.
Fermenting should be done in a fairly warm environment—we do it in the greenhouse after
October—and you will soon see a layer of fuzz form on the top of the fermenting buckets. Did you ever
wonder why ripe tomato seeds don't sprout in the warm wet envirnment inside a tomato? It's because each seed is
contained in a bag of jelly which acts as a sprout inhibitor. Fermenting is our way of removing that bag of
jelly, a process which in nature would be accomplished by the tomato falling to the ground and rotting, or
travelling through the digestive tract of an animal.
The paint mixer.
Using the mixer to stir the tomatoes.
About a week after mixing, fuzz on the buckets.
Note the yellow tomatoes on the right.
All set up and ready to go.
A hard spray of water in the tub of tomatoes creates a lot of foam. The tub can handle up to
three buckets at a time.
A week later I pour three buckets of stinking fermented tomato slop into my Wonder Wagon, a fifty gallon tub
on wheels. (Wonder Wagon, produced in Windham, Maine, by True Engineering, Organic Growers Supply catalog
No.9277.) We pop the green body out of the frame for better control while dumping off the floating tomato
During the fermenting week, the pulp and seed rise to the top of each bucket floating atop a yellowish
thick fluid comprising two thirds the volume. Surprisingly few seeds sink to the bottom of this dense
yellowish fluid, which means the fluid can be safely discarded after the pulp-and-seeds are poured off into
What follows is a somewhat wet and messy process and it is best to find a suitable
location for it beforehand. To separate the seeds from the fermented pulp, a strong
spray from a hose nozzle works well. Doubling or tripling the volume with this
spray creates a deep foam and thins out the whole mess, allowing mature seed to
sink to the bottom. Tomato seeds just barely sink, so when the slurry is too thick,
the seeds remain suspended instead of sinking to the bottom. Thus the spray of
water not only mixes up the slurry, but also thins it out to the point where
the seeds can sink.
After allowing a moment for the seed to settle, the next step is to
pour off into buckets everything that is floating—which will be later carried to
the compost pile—until all that is left in the tub is seed and tiny tomato parts
in about an inch of slurry.
Next I pour this last inch into a clean bucket and repeat a few times the strong
hose spray then pouring off what floats until what remains is clear water with seed
and small tomato parts at the bottom. I have come to be fairly aggressive in
pouring off even the first few tomato seeds that start to be poured out, as these
are the lightest of the seeds and less likely to germinate well.
Buckets of now nearly seedless tomato slurry
poured off from the green tub.
The buckets are then poured into the tractor bucket which is headed for the compost pile.
Forcing the seeds thru a colander removes any non-floating detritus.
What remains then gets poured through a colander over a second clean bucket. The colander
I use has 5/32 inch holes which allow seeds, but not the last of the tomato debris, to pass through. (I
determined the hole size by passing a 5/32 drill bit through the holes.) Again the spray from the hose is
needed to coax the seed through the colander; this takes a few minutes.
After pouring off most of the water, refilling and pouring off again until the water is
clear, the last inch of water and the clean seed is poured thru a tea strainer. The seed then goes into a
quart yogurt container by inverting the container over the strainer and flipping everything over.
To eliminate seedborn diseases, the seed is then covered with a ten percent bleach solution
(one part household bleach to nine parts water) and left to stand forty minutes. I prepare this bleach solution
ahead of time and store it in a jug, all labeled and ready to use.
In trays that are suitable for stacking, place several layers of newspaper (perhaps 20
layers or so). After the bleach soak, the seed is rinsed with water and poured thru a second tea strainer (to
avoid contamination from the pre-bleach-soak strainer), allowed to drain a bit, and then spread on the
newspaper to dry. (Do NOT use paper towels for this, or you will never get all of the seeds removed from the
towels!) Spread out the clump of seeds with your fingers to speed drying and prevent mold. If we are processing
more than one variety at a time, we write the variety name right on the newspaper. What you actually have on
the newspaper are many clumps of seed, each small enough to dry in a few days. We stack trays lined with several
layers of newspaper behind a fan, and within two days the seeds are dry enough to rub the clumps of dried seed
between the palm of my hands until they separate into individual seeds.
Finally after pouring thru a strainer, we have our tomato seeds. The original variety tags
from the buckets move along to the yogurt containers to keep track of multiple varieties.
Seeds drying on newspapers in stackable trays, with window fan behind. In a few days these will
be dry enough to package and put into storage. The trays are on the upwind side of the fan, not the downwind side.
Seeds packaged and labeled for storage. Paper clips work well to keep the envelope flaps closed. Don't
forget to include the year the seed was saved.
The seed is then stored in a recycled (non-tomato!) seed envelope and labeled with the
variety, date—and a batch number if you are doing more than one batch of the same variety. For varieties
where we are saving many ounces of seed, we store the seed in recycled one pound coffee bags. Tomato seed
will remain viable for several years if not abused in storage by high heat and/or moisture. In 2002 we
successfully grew Nepal tomatoes from seed bought in 1992 and kept in the house at or near room temperature.
To insure even longer life, you can put your seed packets in a ziplock freezer bag in the freezer. Because
we store a fairly large quantity of both bought and saved seed, we store our seed in metal cans in the
woodshed, where for three seasons the cool to freezing temperature is close to ideal. The metal cans reduce moisture
absorbsion and prevent critters from chewing on the packets.
I have described here our tomato seed saving system that has
developed over the past few years. It works well for us. My hope is that I may have
given you a hint or two that will make your seed saving a bit easier, or even to
inspire you to begin saving seeds for the first time. If while reading the above, you
find you have developed an even better technique, please share it with us.
Tom Roberts and Lois Labbe operate Snakeroot Organic Farm in Pittsfield,
Maine, where we market our two acres of certified organic produce, herbs and
seeds at up to six farmers' markets a week from May till November. Tom can be
contacted at firstname.lastname@example.org
This article and accompanying photos can be found at
www.snakeroot.net/farm/SeedSaving.shtml. Note that the dates in many of the
photos are in European format dd/mm/yyyy. This article was written in 2004 and updated in 2008.
File name: SeedSaving.shtml
Version: Thursday 07 January, 2010