Seedling Identification Concluded by Curlydock

Yes, I am already halting the project I started in the previous post.

It is a bit ironic, really.

I took pictures of seedlings growing in little pots kept on this winter’s windowsill. I wanted to refer to the images when I needed to identify what was sprouting in the garden. That way I could tell the difference between what I planted and any volunteers (also known as “weeds”).

Well, the volunteers are now vigorously raising their heads in my little pots. I cannot even be certain of the identification of what is growing on my windowsill.

Go ahead, laugh.

The mistake I made: I should have sterilized the germination medium. I did not.

I knew I should have sterilized it, but chose not to. I didn’t sterilize because I wanted to keep the reputed organic benefit of the microbes that are naturally in the vermicompost.

Also, long ago I observed seeds sprouting in the worm bin and in other compost piles I have kept. Since the vermicompost I used was about a year old I assumed anything that was going to sprout in it had already done so. Then, I reasoned, the sprouts died back because there was not enough light and the worms and microbes feasted off them as “green manure”. Apparently this was not true of the volunteers.

Perhaps some seeds are not fooled into germinating in what seems to be an ideal place to do so: the moist and nutritious old compost. Perhaps they wait for some clue to know the time is right, like a change in ambient oxygen or other chemical or momentary exposure to light. Perhaps they could sense the physical disturbance when I combined the vermicompost with peat moss and egg shells to make the potting medium. I really don’t know. If any reader has an idea or a clue, please post a comment.

The next time I attempt this project (and I probably will attempt it again) I plan to germinate the desired seeds in very small plugs of potting medium after baking the medium in an oven to sterilize it. That way the desired seedling will get a head start. Then, as soon as possible, I will plant the plugs in the very center of the small pot of unsterilized medium. It won’t matter what volunteers then because the desired seedlings are already identified. The volunteers can be uprooted as they appear.

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