Seed saving: cucumbers

Cucumber plants like to sprawl around, and in doing so, manage to hide the occasional fruit from us. The most recent escape artist succeeded in evading our palates by dangling over the side of the trough the plant is growing in, and squeezing next to another potted plant.

They are most sneaky, cucumbers…

I've never kept a cucumber until it was this old. I reckon we'll get good seeds from it!

I’ve never kept a cucumber until it was this old. I reckon we’ll get good seeds from it!

Since the fruit was already a dark orange when I found it, I decided to keep it for seeds as my stash of seeds doesn’t seem to be very viable any more. And since I’ve discovered the joys of learning from other gardeners online, I realized that saving cucumber seeds isn’t just a matter of scooping out the seeds and sowing them, or allowing the fruit to decompose naturally in the garden and sprout new plants itself, as has happened before.

To avoid cutting into any seeds, I tried not to cut too deeply, just piercing the skin and a bit of flesh, before twisting the fruit to open it.

To avoid cutting into any seeds, I tried not to cut too deeply, just piercing the skin and a bit of flesh, before twisting the fruit to open it.

No, I’ve learned that to save cucumber seeds, you have to use the “wet” method. This entails scooping the seeds out of the fruit, soaking them in a small amount of warm (I assume they mean room temperature) water, and allowing them to sit and ferment for 2 to 4 days. You also have to stir them daily.

This fermentation is supposed to kill off viruses, and separates the good seeds from the bad and the pulp.

Cucumber seeds and pulp beginning their several-day soak to clean the seeds.

Cucumber seeds and pulp beginning their several-day soak to clean the seeds.

You will know it’s done when you see that seeds have sunk to the bottom while others are floating at the top with the pulp. Those on the bottom are good seeds while the pulp and bad seeds will be floating at the top. The latter are supposed to be mouldy because of the fermentation process. (Ours wasn’t, thank goodness!) Pour the bad stuff and water away, and rinse the good seeds a few times to clean them. Spread the good seeds out on a paper towel to dry for a couple of days, just to be sure they’re completely dry. If they’re still damp when you store them, they will get mouldy – which you wouldn’t want after all the trouble you’ve already gone through to save them.

3 days after soaking the seeds, here are the "good" seeds that stayed at the bottom after the pulp and other floating debris was removed.

3 days after soaking the seeds, here are the “good” seeds that stayed at the bottom after the pulp and other floating debris were removed.

One source that I read suggested putting the dried seeds in the freezer for a couple of days to kill pests before storing them for the long term in a cool, dry place like the fridge. Another source mentioned that cucumber seeds stored properly can last up to 10 years!

Cucumber seeds - cleaned and dried - ready to be stored for future planting.

Cucumber seeds – cleaned and dried – ready to be stored for future planting.

Well, I’ve got my seeds done, hopefully properly, which ought to give me enough plants for many growing cycles.

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Free range plants grow better!

The hot topics of discussion about our garden this week have been the merrily-growing pumpkins and the lone watermelon.

The pumpkins – now apparently joined by another pair of fruits – have been growing at a phenomenal rate. Just compare these:

One of the round pumpkins, four days ago.

One of the round pumpkins, four days ago.

The same round pumpkin today - much wider.

The same round pumpkin today – much wider.

As you recall, the pumpkin vines, while started from a pot, have spread out over a rather wide area – part of which was a compost heap. Earlier today, I noticed some rather thick roots growing from the vine into the compost heap, which probably explains why the fruits are so plentiful (seven, now!) and fast-growing.

Can you make out the roots growing from the pumpkin stem? They're nice and thick, and widespread, too.

Can you make out the roots growing from the pumpkin stem? They’re nice and thick, and widespread, too.

In sad comparison is the little watermelon:

The watermelon when we first noticed it on New Year's Day, and today, at 11 days old. A good rate of growth but nowhere as phenomenal as the pumpkins.

The watermelon when we first noticed it on New Year’s Day, and today, at 11 days old. A good rate of growth but nowhere as phenomenal as the pumpkins.

The watermelon plant also originates from a big container, but I don’t think the vines have taken root outside of the pot like the pumpkin vines have. So the plant currently sports just the one fruit. I also read that watermelon plants have deep seeking roots, so I am not expecting a large fruit from this plant, unless it somehow escapes the confines of the pot and takes root in the garden.

Lessons from this: Good organic soil and giving the plants space to grow are important if you want to have healthy, fruitful plants. I don’t always follow my own advice, so expect to hear this again in a future post! ;)

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Oh pumpkin, oh pumpkin, oh pumpkin…

I’ve been cussing like a sailor about the pumpkin patch. First, the fruit I bragged about in my last post suddenly started turning yellow and is now rotting away. At that, I gave the plants the evil eye and told them to just wait ’til this weekend…

Then… yesterday on my daily garden walkabout if it’s still bright when I get back from work – it’s a great way to start de-stressing at the end of the day – I saw an impudent pumpkin, probably a few days old, sitting haughtily in what’s supposed to be a flowerbed. I’ve been trying to train the vine away from that bed but it out-stubborned me, and now I have a good reason to just leave it there.

The naughty pumpkin that decided to displace my flowers. And looks like I'm letting it get away with it!

The naughty pumpkin that decided to displace my flowers. And looks like I’m going to let it get away with it!

The fruit was already at least 10cm at its widest girth. That was when the good swearing began because I couldn’t believe how quickly the plant was responding to my threat to massively cull it.

Then, this morning, when I was rushing off for work, I suddenly noticed a pair of pumpkins on part of the vine that’s growing over cement ground. That blew my mind and set my day off on a great note. I couldn’t wait to come back and take a better look in the evening.

The two newest pumpkins - about tennis ball size when checked in the evening, and as round, too!

The two newest pumpkins – about tennis ball size when checked in the evening, and as round, too!

So I made it a point to come back early and go out with the camera to catch the three fruits in pixels…

…only to discover even more fruits growing!

That was also when the cussing like a sailor (in a good way) really got underway! Yes, Mother Weed, I’m keeping this PG. :) I was just really, really, really excited!

The second biggest (I think) pumpkin, which happens to be growing over the compost heap.

The second biggest (I think) pumpkin, which happens to be growing over the compost heap.

In total, I found FIVE pumpkins growing on the various vines. The additional two were, of all places, on top of the compost heap. I’m hoping that the compost is matured enough that the decomposers have moved on to a different place, away from the fruits. And after the experience with the first pumpkin, which maybe we manhandled and shocked, or maybe stepped on the vine, I’ve decided to be literally hands-off and just let them be. After all, I already know how sensitive the vines can be – they abort fruit buds if you shift the vines they’re growing on too much. So, fingers crossed that these babies will carry to full term. Yay!

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Pumpkin patch tales

Our pumpkin patch. I don't know why I expected it to grow docilely along the side of the garden...

Our pumpkin patch. I don’t know why I expected it to grow docilely along the side of the garden…

Looking back now, I feel so naive when I remember how worried I was that our pumpkin vine wouldn’t have enough flowers for pollination. The single vine has grown and branched out so much that it has become a rather impressive pumpkin patch all by itself.

As a matter of fact, I think the two new plants I put in with the original plant may be completely shaded out unless they grow faster. However if they do that then I’m going to have a pumpkin jungle on my hands…

Throughout December, a number of flowers came and went, both male and female, and usually not at the same time. I had a few goes at hand-pollinating the fruit flowers when the right flowers were around, but they all aborted.

One of the several attempts at hand-pollinating the pumpkin flowers. Notice the insects? Neither did I.

One of the several attempts at hand-pollinating the pumpkin flowers. Notice the tiny insects and ants? Neither did I.

I don’t know if you remember, but I mentioned that the pumpkin plant had grown towards and over a nearby compost pile, which I thought was cunning of it, because of the nutrients in that heap. However, when our gardening guy visited to assess the jambu tree, he made a comment that didn’t strike me immediately. When he saw the pumpkin plant growing over the compost heap, he said that the decomposers in there don’t differentiate between living plants and plant waste. It didn’t make sense to me because obviously the vine was thriving with really thick stems and such huge leaves that just one could be used to shade an adult’s head from the sun.

However, when those many fruit flowers failed to set, I paid more attention and realized that all those ants and other insects I saw clustered inside the flowers were not necessarily pollinators – they were destructors, killing the flowers from within.

Invading ants bringing their allies with them. Blah.

Invading ants bringing a cluster of their allies with them. Blah.

Since then, I’ve been encouraging the vines to grow away from the compost, although this means encroaching on area I didn’t plan on using for the pumpkins. The plants (I’ll assume the new ones are still growing somewhere in there) are already taking up a few square metres of real estate, but I’m more interested in successfully growing pumpkins, so am willing to make the sacrifice for this crop.

I guess when the insects inside the flower kept munching their way through, they reached the underside of the fruit itself and just kept going. Now seeing the fresh garden waste just beneath the plant, I realize my mistake in allowing the plant too much freedom.

I guess when the insects inside the flower kept munching their way through, they reached the underside of the fruit itself and just kept going. Now seeing the fresh garden waste just beneath the plant, I realize my mistakes – firstly in continuing to add to the compost heap right next to to my growing plants, and secondly, in not training the pumpkin vines away when they started growing in that direction.

So, I’ve been focusing my hand-pollinating efforts on the parts of the vine away from the compost and bad insects. There are quite a number of fruit buds and flowers, and this week it looks like the boys are getting into the action as well. In an effort to keep the insects out, I tried a method I read about – to peg shut the flower buds about to open so that you stop insects from entering and cross-pollinating them. In my case, I just wanted to keep the insects out so I could hand-pollinate and seal shut the fruit flower long enough to let it set fruit. I tried, but little ants are very good and getting through tiny nooks and crannies…

I got so frustrated that I finally resorted to threatening the plant. If it didn’t set fruit within the first two weeks of the new year, I told it (several times) that I would massively prune it so I could clear away the compost pile and let it start all over again.

Guess what? Threats do work on plants!

Where did I discover this fruit? Well-hidden under the leaves and nestled just inside the flower pot that the mulberry plant is growing in, which the pumpkin vines happily draped themselves over and around.

Where did I discover this fruit? Well-hidden under the leaves and nestled just inside the flower pot that the mulberry plant is growing in, which the pumpkin vines happily draped themselves over and around.

The pumpkin patch is so thick that I have to keep peering through the mass of leaves and wade in if there’s anything to pollinate. Naturally, I miss flowers, and naturally the fruit that finally set did so by Mother Nature’s hand!

I still may prune the parts of the plant over the compost heap if the other ends of those vines don’t set fruit, but for now it looks like I can just leave it be.

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