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An Edible Garden Keeps on Giving Even In Neglect

15/11/2016

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Life has seriously got in the way of gardening this year. But even though my garden has been almost totally neglected since February, I am amazed at the abundance of food it is producing. It's full of veges I didn't cultivate, and herbs and fruit that just keep on coming, as well as wild foods.
And it reminds me of these wise words from The Resilient Gardener by Carol Deppe:
These days, we tend to design our gardens and our gardening for good times, times when everything is going well. That isn't what we need. Reality is, there is almost always something going wrong. Hard times are normal. My experience of gardening while caring for my [terminally ill] mother helped me realize that I needed to garden differently. My garden needed to be designed around the reality that life has its ups and downs. It has good times and bad. How to garden in the best of times was not the issue. I didn't need a "good-time garden." I needed to understand more about how to garden in the hard times. I needed a more resilient garden. And I needed a garden that better enhanced my own resilience, in all kinds of times, good and bad.
You see, this year I planned to do plenty of gardening. To keep on top of the weeding and compost making and spreading, the planting and harvesting and pruning. But I didn't count on a series of life events that made this near impossible. This year, 4 of my 5 kids have left home and/or moved away, 1 got married, and then my dad passed away suddenly, leaving me as executor with all the responsibilities of organising his funeral, and taking care of his fairly complicated estate. On top of which, we were burgled, and my autoimmune disease has been in full flare, making every day life extra difficult. When you add in my nearly full-time responsibilities in advocating for and mentoring home educators, as well a bookkeeping for my husband's business and looking after our 65 odd animals, it's little wonder my garden has been neglected!
And yet, now I am finally spending some time in the garden, clearing beds, reclaiming the jungle, and actually doing some deliberate planting, I am so thankful that my garden, even in my essential absence, has kept right on growing food, including a lot of things I didn't plant as such. Before we take a look at what foods (and potential foods) I can find in my garden right now, let's talk about what a resilient garden is.....
To me, a resilient garden system is one that:
  • Provides us with a wide array of nutrient dense foods
  • Whose output (food and useful products) is considerably greater than the required inputs (time, effort, money)
  • Is set up in such a way that it can survive and thrive even when the gardener is unable to tend it
  • Contains plants that will keep on regenerating and producing without the direct action of the gardener
  • Produces abundant viable seed that can be saved, stored, shared and replanted
  • Minimises the work needed by the gardener to keep it producing well
  • Whose foundation - the soil and it's life - is continuously being built and improved by the system itself
  • Provides food, shelter and habitat for beneficial creatures that do a lot of work for the gardener by controlling pests and diseases, pollinating fruits and veges and generally improving the overall well being of the system
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Yesterday I was clearing an overgrown garden bed in order to ready it for planting. In doing so, I was *forced* to harvest a bowl full of potatoes (self-grown from left overs of a crop from 3 years ago), a basket full of broad beans (self sown from broad bean stalks I thought I'd stripped before using them as mulch around some watermelons), a whole bunch of calendula flowers (perfect in a salad or for making healing salves), some dahlia tubers (they're edible, though I plan to replant them elsewhere), and some yacon. All thriving despite my complete neglect and the weeds that were growing throughout the bed. This reminded me I have much to be thankful for in my garden jungle. Let me walk you through what I can find there now....
Trees: fruitful trees are a great backbone to any garden. Over the last 3 years since I started my garden I have planted some here and there. Right now, there are 5 varieties of apples and 2 pears forming fruit. The double-grafted cherry looks like it's going to have a good crop. The damson plum I planted from a root sucker is going to have it's first crop. The fig has figs fattening up, the quince in the paddock is going to have a heavy crop, the feijoas are about to flower and will hopefully bear well (last year they had THE most delicious feijoas I've ever tasted - being positioned for the run off from the compost bins has something to do with that I'm sure!), and the lemon is still fruiting and flowering, as is the lime, and the orange and mandarin trees are flowering again now too. Even the neglected baby pomegranate in a pot I was sure I'd killed by leaving out over winter has made a come back (though may not fruit this year). The chestnut tree hanging over the boundary is flowering and will be tossing it's nuts everywhere in months to come. The willow on the boundary can provide pain relief as well as natural rooting hormone and plant growth stimulants, and it and the poplars help feed the soil and the sheep, who in turn feed us, as well as providing leaf litter that increases the populations of worms and bugs, which the chickens and ducks devour with relish, and give us eggs in return.
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Bushes: The red currant has ripening fruit, as does the 8 blueberries. My 8 or so blackcurrants are in full flower and should have good crops, and the 6 Chilean guavas (aka NZ cranberries) are flowering now too. The gooseberry has ripening fruit, though not in the same quantity as last year, but the baby one in a pot is working hard to outdo it!
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Vines, canes and brambles: My old grapevine is covered in flowers that foretell much fruit, and so is the young one I planted on a whim next to a fence - where it's trying to conquer it's corner of the world. The stauntonia flowered but I don't think will fruit, and the young kiwifruit vines are growing well. Meanwhile, the raspberries and boysenberries have proliferated and created their own dense jungle of thorns, flowers and fruit. I'm really going to have to sacrifice some to gain full access to the rest! A blackberry I meant to dig out has set up shop again in one corner and will produce well, if I let it. There are strawberries everywhere - white alpine ones are spreading wherever they can (I've been picking and eating their sweet fruits most days), and normal red ones are coming up again under the blueberries and Chilean guavas, but have also replicated themselves in odd spots - such as growing out of a log in another part of the garden! Homegrown strawberries ALWAYS taste WAY better than bought ones! The self-sown hop vines are climbing back up over the chook run for the 5th or so year in a row; their hop flowers are an excellent sleep aid, and could be used for brewing beer if you were so inclined.
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Herbs & flowers: The sweet-leafed fennel is already providing abundant leaves for flavouring dishes, and will soon start producing a ton of seed (great for cooking and home remedies). Lovage and sage are determinedly raising their heads above a jungle of couch. Calendula is dotted here and there. Parsley is everywhere! Chives are abundant, I have more rosemary than I can ever use, the oregano, pizza thyme and common thyme are all looking lush, and there is a patch of garlic chives over there.... Lemon balm is growing vigorously in various places, and the lemon verbena smells heavenly and tastes great as a tea! I shall never want for mint or spearmint, and the lavender is abundant. Soapwort has come back up for the third year - it's delicate flowers look lovely, and it's roots and leaves can be used instead of soap. I have plenty of nasturtiums and borage flowers to add to salads from here until eternity, as well as rose petals and geranium flowers. If I, or the critters, need worming or delousing there is plenty of wormwood to go around. The comfrey is lush and ready to use in the garden or for it's healing properties. Self-sown cornflowers are popping up here and there too; their pretty flowers are edible but rather bland. The self-sown pansies and voilas that are dotted here and there also make lovely salad garnishes. And the dahlia tubers are all over my garden, about to regrow and multiply. Dahlias are super easy to grow from seed and add lovely colour to the garden - bees love them!
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"Weeds": Huge dock specimens provide nutrient laden compost ingredients or garden mulch. The leaves can also be eaten similar to silverbeet, but due to it's high oxalate content should only be used in moderation. Plantain (broad and narrow leaved varieties) have come up all over the place and stand ready to serve if anyone suffers a bee sting or insect bite, or needs a cream for nappy rash or eczema. Dandelion and puha are abundant, and I have lush crops of chickweed (edible and nutritious) in various places. Miner's lettuce, that delicious, slightly crunchy and succulent vegetable "weed," is plentiful, and the edible flowers of white and red clovers are everywhere, while the plants themselves are adding nitrogen to my soil and are excellent for compost or mulch. Self-sown hawthorne trees provide edible leaves and berries with health properties, and fumitory is abundant should I need it's healing powers. That fuchsia that keeps insisting on re-growing out from under the house has edible flowers and berries, and the cleavers that are climbing their way over various things are also edible. And parsnips. Boy, they are a weed in my garden! They self-sow everywhere, and grow with abandon, as well as provide excellent rough mulch to protect tender watermelon plants and other seedlings one wants to keep the birds from digging up. Even the afore-mentioned broadbeans and potatoes can be considered weeds, since they are plants growing where I don't want them, but meanwhile they are producing good food, so who am I to complain?
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Vegetables: Garlic and shallots were the only things I actually planted over winter; they are doing well. The beetroot I should have harvested months ago are now going to seed, but that's ok since they were the last of my favourite variety and I will save seed from them for the next crop. The silverbeet I planted a year ago has kept on producing and producing, and is now about 2.5m tall and going to seed. But unlike a lot of crops, it still gives when flowering - the small leaves growing all up the stalks are perfect for making salads and smoothies. I'm cutting the flower heads off them all so they won't cross pollinate with the beetroot, and have just planted new seedlings; once those are established I'll remove the old plants. There are also a whole bunch of "wild" silverbeet and perpetual spinach plants sprinkled around the place - a legacy from the ones that I saved seed from a few seasons ago. As well as the self-sown broadbeans, I do have a bed of deliberately planted ones I put in a couple of months ago; they are now flowering well and have baby broadbean pods starting to develop. The long neglected but faithful rhubarb plants are putting forth big leaves and stalks, and the spring onions from last spring are still going strong. There are wonderful leek and celery specimens that self-sowed next to the compost bins, and more potatoes here, there and everywhere. The bins of them I never harvested are happily regrowing, and with the addition of some compost to feed them should produce even more than they would have last season. Yacons multiply themselves every season - producing an abundant crop of edible tubers and more and more crowns from which they regrow. They are now sprouting away happily; if I wished I could still dig them up and harvest some tubers, but I'll leave those now to feed the new plants. Last year's radishes spread some of their seed - a huge specimen is now flowering next to my broadbeans, and I'm looking forward to picking the young seed pods to add to my stir-fried vegetables and salads. I've been pulling out self-sown broccoli seedlings too, and I see tomato seedlings popping up here and there. No doubt, if I had not been so diligent about NOT putting pumpkin or zucchini seeds in the compost (I give them to the chickens; a nutritious vermicide, or roast and eat them myself), I'd have lots of those growing everywhere about now too. And the self-sown popcorn cobs I discovered while weeding one patch are now safely harvested; some I have re-sown, and the rest I will pop and eat.
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I've probably forgotten a bunch of things, or will discover more as I continue to weed and clear beds for new season planting, but as you can see, my garden has an abundance of food and other useful products, even though I've neglected it for most of the year! There are really only three things I wish would not grow in my garden - couch grass, creeping buttercup and convolvulus - the rest all have their uses! (Ok, I can use mown couch for compost, but still, I'd rather be without it!)
I'm very thankful for my edible garden, it's natural resilience, and all it's determined efforts that feed me and my family!
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What's Flowering Now - November

12/11/2016

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This month's round up of what's currently flowering in my garden. My garden is humming with bees of all kinds - honeybees, bumblebees, wool carder bees, and various natives, as well as other beneficial insects and pollinators. I'm slowly weeding and planting, and have just put in some flowering annuals, but most of what's currently flowering is still perennials or self-sown plants, or those that I planted last season. Let's take a look at what's flowering now (and a few that flowered since my October round up, but have now just finished).....
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Leptospermum "Outrageous" - I brought this gorgeous plant last season but have only just planted it. One day it will be a big, beautiful screen hiding my feed and rubbish bins.
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Foxglove - self sown and the first one I've seen on my property. I plan to cut and bin the flowering stems before they set seed and spread everywhere, but meanwhile the bumblebees are loving them.
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Lemon-scented geranium
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Borage - self sown. Bees love them and the flowers are pretty on a salad. Good companion to strawberries, but watch out - they tend to take over!
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Phacelia - self sown. Bees LOVE this stuff!
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Osteospermum - grown from a cutting given to me by a local gardener. Spreads to form a low-growing thicket. Hardy and shade tolerant.
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Common thyme
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A bed full of broad beans, a self-sown radish, and some other flowers surrounding - closeups below
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Broadbeans
Right: corn cockle. Once upon a time, found wild in cornfields but thanks to modern agriculture is now extinct in the wild. I love them!
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Self-sown radish. I'm waiting for the seed pods, which if picked young are tender edibles.
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Coxes Orange apple tree - the last of my apples still blooming
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Pink geranium. I have red ones flowering too
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Chives - I have at least 4 patches of chives around the garden. Bees love the flowers, and I love this herb in just about everything!
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The first of the Granny's Bonnets I planted last year have started flowering amidst the lavendar which is still going strong (and positively BUZZING!)
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Tiny pink Soapwort flowers; it will flower all summer
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First of the tea roses (above) and carpet roses (right)
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Blooming buttercup. 'nuf said!
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Strawberries - home grown always tastes better!
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Spring onion - bees love all onion family flowers, especially bumble bees
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The short lives but lovely azalea blossoms are already starting to fade.
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First flowers on self-sown nasturtiums. I'm planning to pull all self sown ones this year as I want to have the clumping variety instead of these trailing (takeover everything) ones. I've grown clumping nasturtium before, but it turns out when it cross pollinates with the trailling ones, all future offspring are trailing.
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White clover
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Boysenberries
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Self-sown pansies and violas have popped up here and there. When things naturally grow, it's a good indication of the right time to plant similar or related plants.
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Blackcurrants are flowering - the red currants have already set fruit as they come on earlier.
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Dandelion
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English daisies are popping up in the lawn. Daisy chain, anyone?
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Common sage - determinedly popping up in the midst of an overgrown tangle of couch!
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Red clover
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Raspberries
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Self-sown Calendula in all colours is around my garden. Going to grow lots more on purpose this year - we use it a lot to make wonderful healing salves.
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Polyanthus in various colours
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Capeweed. Bees love it, spreads easily. Easy to pull out.
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Fumitory - weed. One of two wild herbs my neighbour used to cure himself of a lingering Giardia infection
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My lemon, lime and orange trees are all putting forth buds that are about to burst into blossom!
That's it for this month's flower round up. What's flowering in YOUR garden?
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The Pollination and Cross-pollination of Corn Varieties

8/11/2016

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PicturePopcorn - 3 varieties crossed - see below
Corn (be that sweetcorn, popcorn, or flour corn) is wind pollinated, rather than pollinated by insects. For this reason, it is advisable to plant corn in blocks rather that rows, at least 4 plants across, so that when the wind blows the pollen about, it increases the chance of good pollination occurring.

We are also told to be careful about planting different varieties close together or at the same time, due to the effects of cross-pollination. I'll cover this in more detail in a moment. But first, let's quickly cover the basics of corn pollination for those unfamiliar with it.

How corn is pollinated

Why do we grow corn in the home garden? For the cobs, of course. (A farmer growing it for silage cares less about the cobs, because he's going to put the entire plant through the harvester/shredder and turn it into silage, but for gardeners, it's all about the cob.) In order to get good cobs, though, we need good pollination.
A mature corn plant has two parts of most interest to us in the discussion - the tassels (right), which form at the top of the plant and are where the pollen grains are produced, and the silks (below), which hang from the end of the forming cob, or ear, and which must be pollinated by the pollen. The design is that the pollen will fall downwards with the aid of gravity, and float around a bit with the aid of wind, and come into contact with the silks, pollinating them.
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Did you know that each strand of silk is attached to one potential kernel of corn? If the silk is pollinated, that kernel will plump up. If not, it won't. This is why poorly pollinated cobs will have many missing kernels, while well pollinated ones will have lovely rows of fat kernels all around the cob.
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A gardener can aid pollination by picking tassels off the top of the plant and wiping them over the silks, or by gently shaking the plants to encourage the drop of pollen.
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F1 Hybrid sweetcorn - uniform colour
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Heirloom Rainbow Inca sweetcorn - open pollinated

Cross-pollination of corn

When one variety of corn is pollinated by pollen from another variety, this is called cross-pollination.

With other species of vegetables, let's say pumpkins, where cross pollination happens easily - in the case of pumpkins when bees visiting the flowers are carrying pollen from other related varieties -  cross-pollination is not of concern to the pumpkin grower if he's only wanting to grow and eat the pumpkins, which will be unaffected, but IS of concern if he's wanting to save seeds from those pumpkins to grow the next year. That is because the seeds that form inside the pumpkins as a result of pollination will carry the DNA of both that plant and the one it was pollinated by, which if it's a different variety means the pumpkins grown from those seeds will not be true to type, and may turn out to be quite different from what the grower wants, even inedible.

However, for plants where pollination produces seed and it's the seed we eat, as in this case corn, then cross pollination by different varieties can affect the "vegetable" itself, as it is the seed we want and eat. (Technically, corn is a grain, not a vegetable). That is, the kernels on the cob are in fact the plant's seeds, and we want them to be true-to-type. If, for example, a sweetcorn plant is pollinated by a popcorn plant, the popcorn will be fine, but the sweetcorn will be have drier, tougher kernels and potentially not be nice to eat. Generally, the tougher/drier types of corn tend to be dominant over the sweetcorn types.

So, to avoid this occurring, gardeners have 3 main choices:
1) Grow only one variety each season
2) Stagger planting so that each different type flowers at different times - this usually means planting 4-6 weeks apart. Further precaution would be to remove any remaining tassels from the first variety before the second one's silks emerge (by with time the first one should have been well pollinated - you could wipe the removed tassels across it's own silks for good measure)
3) Isolate by distance - but since corn pollen can float in the air for huge distances, this is usually impractical in the home garden, though isolating by means of a large structure may help - eg planting one variety on one side of the house, and a different one on the other.

If you don't take any of these measures and grow more than one variety at the same time, then you risk having results different then you hoped for - eg tough sweetcorn. At least that's the theory. I have heard some gardeners say they've grown popcorn and sweetcorn next to each other, and the sweetcorn was fine. However, the science of it says that the sweetcorn, of cross pollinated by the popcorn, will be tougher. Here's the scientific explanation for those who want deeper understanding:

The proper development of corn kernels requires double fertilization — that is, two sperm (carried in the pollen) are required to fertilize an ovule. One of the sperm fertilizes the egg within the ovule, which becomes the plant embryo. The other sperm fuses with other nuclei in the ovule to become the endosperm of the seed, which will develop into a food source for the developing plant. The endosperm makes up the majority of a corn kernel, which is why the genetics of the pollen source matter so much. In contrast, there is very little endosperm in the seeds of other garden plants, which instead put all of their resources into developing the cotyledons (seed leaves). (1)

All of the alleles responsible for sweet corn are recessive, so it must be isolated from other corn, such as field corn and popcorn, that release pollen at the same time; the endosperm develops from genes from both parents, and heterozygous kernels will be tough and starchy. (2). Allele = one member of gene pair, such as will be found in the egg or sperm of a mammal, or the pollen or ovule of a plant. Heterozygous = having two different alleles for the same gene (usually one is dominant and the other is recessive).

But crossing colours can be fun....

On the other hand, deliberately allowing different coloured corn of the same type (eg both popcorn or both sweetcorn) to cross pollinate can result in some interesting and fun results. In this case, though, the results of the cross won't be immediately obvious. This is because the science for this part is a little different:

The outer coat of the corn kernel is called the pericarp, and the pericarp is where the colour is - eg you can have yellow popcorn or red popcorn, but if you pop them both, the insides of each are white - the colour is only in the pericarp, or hull. The colour of the pericarp is determined only by the genetics of the mother (female plant part, ie ear). This means that the cobs resulting from the immediate cross will be coloured according to the genetics of the plant on which it is growing, but the cobs on plants grown from seeds saved from those are carrying the genetics from both parents and so can show variety.

Let me show you that in practical reality.....
The year before last, I grew three varieties of popcorn - strawberry/crimson (saved from my previous crop), mini-black (gifted by a Hamilton grower), and yellow (purchased from Kings Seeds). I grew a fair number of each plant, all in the same bed, because I didn't care if they crossed, since all popcorn is popcorn, regardless of colour. At the end of that season, I harvested the popcorn. I had cobs of each of the three distinct colours - a few of those cobs are shown to the right.

Last season I chose not to plant any popcorn, as I had plenty stored up and didn't have space in the garden. However, I did notice that some self-sown popcorn was growing next to where the bed of it had been the previous season. Nothing unusual in that; I'd left the popcorn to dry on the plants and had been busy and was slow to getting around to harvesting - some of the cobs were dropping seed before I did so, and I rather expected a few popcorn "weeds." I noticed this particular plant that popped up had red tassels like the strawberry popcorn does, but not the black or yellow ones, so I thought in passing it would produce more strawberry cobs, and then forgot all about it. I never got around to picking it at the end of summer, and eventually the plant died down, and the cobs shed their seed into the grass, or so I thought.

Today I was weeding that patch, and found the two cobs still mostly intact, though the end kernels were all sprouting. Here's what they look like (right): Pretty!
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3 varieties of popcorn grown side by side - result, 3 distinct colours
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Next generation of popcorn, grown from a kernel of the above (probably a strawberry cob)
Now, if I were to grow a patch of corn using the kernels from these mixed-colour cobs, what colour would the offspring cobs be? Well, that depends.....on which kernel the plant comes from and the genes it contains, along with the genes of the pollen that pollinates it's silks. Remember your high school genetics:
Parents 1 & 2  has two genes for colour - one dominant and one recessive shown as Pp.
Pp crosses with Pp
Possible offspring are:
PP, Pp, Pp and pp
One has two dominant genes, two have one dominant and one recessive, and one has two recessive genes. In theory, 3 of the offspring will be the dominant colour, and one will be the recessive colour.
But in my corn it gets more complicated - there are three colours here, and each colour kernel potentially has a number of different combinations. And of course it will depend which colours are actually dominant. And which plant's pollen pollinates each one.
So, I actually wasn't going to grow popcorn this year, but this is just too much interesting fun to pass up! I will update on the results in autumn!

Leave a comment to share your corn cross pollination experiences!

So, what are YOUR experiences with corn cross pollinating? Have you had tough sweetcorn due to also growing popcorn or flour corn varieties? Or do you believe there was no effect? Have you specifically bred for colour? How did that turn out? Leave a comment so others can learn from your experiences too!
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