What is a fast growing plant that can be kept indoors in a yogurt container?

I'm doing a science experiment on how music affects the growth of a plant, and I need a plant that has three specific characteristics:





1. It grows very quickly, getting to AT LEAST five inches tall within a month.





2. It needs to be able to be grown indoors, in a very small container and little light.





3. It needs to be a plant that's size can be measured in height, and doesn't need any special amount of light, fertalizer, a stick to wrap around, etc.





If anyone knows of a plant like this that can be bought in packs of seeds, I would really appreciate it.

What is a fast growing plant that can be kept indoors in a yogurt container?
Believe it or not - grow bird seed. Millet (either white or red) will grow very quickly.... can grow in poor soil (so no fertilizer) and grow straight like grass so should be pretty easy to measure.





Just be careful if you have a cat - many of the products that are sold as 'cat grass' for indoor cats to eat are really millet. I grow it for mine and it is able to replace itself within a week or two after they chew it down.
Reply:a mustard plant meets all your descriptions
Reply:try an avocado pit in plain water. you put 3 toothpicks evenlty spaced around the pit to hold it on top of the container around its middle, then fill the container with water up to the bottom of the pit that is suspended by the toothpicks. Hope this helps.
Reply:I have found bamboo plants grow in water only, they never need dirt. I have one that is about 12 to 14" and it's in a large coffee cup.All you do is make sure roots are covered in water, so it's little maintenance
Reply:have u ever tried planting a full, unpeeled banana? it can produce some very appealing results!