Skip to main content

Sprout Jar

Photos of seeds from yesterday, to scale.
The onion is the one on the left.
A couple of days ago I planted 3 seeds in a clear glass jar, so I could watch them germinate. 2 of the seeds came from one of my basil plants, and the other came from a green onion plant. This is partly a test on the quality of my home-grown seeds, but also a fun gardening activity; after all, who wouldn't like to sprout  some seeds and watch them grow?

Here's how you can make your own sprout jar:

1. First make sure you have some seeds you can use. Popcorn kernels work very well, if they haven't been popped yet; the better they pop, the better they grow. You can also use dry uncooked beans.

2. Acquire a small clear tube of some sort. I used an empty spice jar with the label removed.


 3. Fold and/or cut a paper towel until it is as wide as the jar is tall. Then roll it up and put it inside the jar. Try to make the paper towel tight against the sides of the jar.


4. Add seeds to the jar. Place the seeds between the glass and the paper towel, so you can see them.


5. Add a little water to the bottom of the jar. Let the water soak into the paper towel, until it's wet. If necessary, add more water.

6. Put the jar in a dark place, and leave it there until the seeds sprout leaves. If you don't want to miss anything, check it morning and night. Water it whenever the paper towel starts to get dry.

7. Eventually, if you want to finish growing the plant, transfer the seeds to a pot of moist dirt or to the garden. Water whenever you think it needs it.

Comments

Popular posts from this blog

Gravity

Imagine the universe is filled with water. Instead of empty space, every inch of it contains pure water. No planets, no stars, only water. What happens? And what would happen if an air bubble formed? The answer to this question requires a basic understanding of gravity. Gravity is very important. It helps hold matter together, bends light, and distorts space-time (which, incidentally, is how it bends light). It also makes it possible to play football, and as Americans are big football fans, they would certainly agree that we couldn't live without it. Unfortunately, many Americans don't understand how gravity works. Admittedly, scientists haven't figured out a lot of things, but we do understand it well enough to make predictions and model physical events. One of the important things about gravity is that its strength is proportional to the inverse of the square of the distance. In other words, it gets weaker as you get farther away, based on the equation: F = c/d 2 where c ...

Dividing Paper Puzzle

When I was young, I would fold a sheet of letter paper in half, for origami projects. It occurred to me that the two halves looked almost the same as the whole sheet of paper - except they were smaller. I could see they weren't exactly the same shape; they were off by a little bit. But the idea stuck in my head. You can use a pen, instead of scissors, to halve the paper. Those rectangles all have the same shape, but are different sizes. One night when I was 12, I thought about my idea. I wondered if it was possible to have a sheet of paper that could be cut in half, resulting in 2 smaller versions of the same paper. That would be neat, to be able to cut a paper in half and get 2 papers that had the same exact shape. If that were possible, then you could cut  those  papers, too; and the resulting papers would have the same shape as all the other papers. You could keep cutting in half forever, and each paper, no matter how small, would have the same shape as all the ot...

Too Bright, Too Dark

The visible world around us is constantly changing. One second we may have the sun in our eyes, and another we're in a dark closet trying to find the light switch. Such fluctuations in brightness could have ended up being a serious problem for our vision if it weren't for a handy built-in feature: our eyes automatically adapt to the lighting conditions of the surrounding environment. Most people are well aware that their pupils change size to handle lighting conditions. A larger pupil admits more light and makes the scene brighter, while a smaller pupil admits less light and makes the scene dimmer. This mechanism is fast and effective, and is controlled by the brain stem, which acts autonomously - you don't even have to think about it. As useful as this type of adaptation may be, it has some limitations. For example, most artificial lighting is 20 times dimmer than the sun, while pupil dilation only brightens light by a factor of 4 (when compared with a fully constricted pu...