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| HaPe Bamboo | Chairs Game | Zig Zag Zoom | Quercetti | Space Voyagers | Big Mag | Superstructs | Magic Cutter | SES | Supermag |
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GAHPETS | Grow-A-Head Pets |
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GAHFRINENDS | Grow-A-Head Friends |
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GAHCLASSIC | Grow-A-Head Classics |
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GAHBUG | Grow-A-Head Bugs |
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Click here to learn how to grow your Grow-A-Head
Grow-A-Heads are more than a fun way to watch something grow and change before your eyes. They are also living examples of several important scientific principles. The minute you add water to your Grow-A-Head, you set in motion a series of complex organic processes.
Your Grow-A-Head is made up of coir dust, peat moss and fertilizer. Coir dust is a renewable resource made from coconut husks. Formerly a waste product left behind during coconut processing, coir dust is often used as an all-natural alternative to peat moss. The Grow-A-Head also contains Rye Perennial grass seed. Perennial Rye is noted for its quick germination time, strong roots and good response to fertilizer; it is a popular choice for golf courses throughout the United States . Seeds contain the building blocks of what will grow into the roots, stems and leaves of a plant. Seeds are considered “dormant” (sleeping) until they receive water and light. Before a seed sprouts it must absorb large amounts of water from the soil. Water helps transform stored food into energy needed for growth. The wick underneath your Grow-A-Head starts a process called absorption. Water is pulled up through the wick into the Head. For more on how this works, see Transpiration below.
Another process to observe is condensation. This is when a gas or vapor turns into a liquid. While your Grow-A-Head is under it’s plastic cover for the first few days, water droplets may form on the inside. In an enclosed environment like this, the amount of water vapor in the air can easily exceed the capacity of the air to hold it, so the vapor turns back into actual water droplets, which is what you see inside the cover.
The combination of water and light help the seeds to germinate. Germination is the sprouting of a seed, and can take anywhere from a few hours to several weeks, depending on the plant. With proper light and moisture, your Grow-A-Head should sprout in just a few days. Once the seeds have sprouted, roots begin to form. Roots not only help support a growing plant, they also carry nutrients to all the different plant parts. A number of forces help to move liquids through the plant’s circulatory system. Transpiration is a major force in this process. Transpiration is the release of water through the leaves of a plant. Since dry air seeks moisture, it basically pulls liquid all the way up through the plant until it comes out of the leaves through stomata , which are tiny pores on the leaf surface. The rate of transpiration (how much water is evaporated as it comes through the stomata) is affected by other environmental factors such as sunlight, humidity, winds and temperature.
Plants are able to make food using energy derived from light. This complicated process is called photosynthesis . Light provides the energy that helps change water and carbon dioxide into oxygen and tiny subatomic particles. Chlorophyll is the substance found in plants that helps them absorb energy from light. Of all the colors in the color spectrum, chlorophyll absorbs mostly blue and red light. Since green and yellow light are not effectively absorbed by chlorophyll, light from these colors is either reflected by leaves or passes through them, which is why plants are green.
The fuzz you see on your Grow-A-Head is tiny roots that can be removed with tweezers. As the grass grows in on top of the head, style it however you want. Add ribbons, hats and other accessories to personalize your Grow-A-Head, and let your imagination go free.