If you’re looking to add some color to your garden, glass gem corn is a great option. This unique variety of corn produces multi-colored kernels that range from bright reds and yellows to deep blues and purples. Not only is it visually stunning, but it’s also easy to grow.
To get started, you’ll need to plant your glass gem corn in the spring once the soil has warmed up to at least 60 degrees Fahrenheit. You can plant the seeds directly in the ground or start them indoors and transplant them later. Glass gem corn is a warm-season crop that takes about 100 to 110 days to mature, so make sure you give it enough time to grow before harvesting.
One of the great things about glass gem corn is that it’s relatively low-maintenance. You’ll need to water your plants regularly and fertilize them every few weeks, but other than that, they should be able to grow on their own. As your corn begins to mature, you’ll notice the colors of the kernels become more vibrant. Once the ears have fully formed and the kernels have dried, you can harvest them and use them in a variety of recipes.

Understanding Glass Gem Corn
If you’re looking for a unique and colorful addition to your garden, glass gem corn is a great choice. This heirloom variety of corn has become an internet sensation due to its striking rainbow-colored kernels. But what exactly is glass gem corn, and how do you grow it?
Glass gem corn was first developed by Carl Barnes, a farmer in Oklahoma with Cherokee heritage. Barnes spent decades selectively breeding different strains of corn to create a variety with kernels that resembled the colorful beads he remembered from his childhood. The result was glass gem corn, which quickly became a favorite among agricultural enthusiasts and tribal groups.
One of the unique features of glass gem corn is its coloration. The kernels can range from translucent to deep shades of red, blue, yellow, and green. This makes it a stunning plant to grow in your garden or even just to admire. But glass gem corn isn’t just a pretty face – it’s also a delicious and nutritious variety of corn.
To grow glass gem corn, you’ll need to start by selecting a planting bed that gets full sun exposure for at least six hours per day. The corn requires well-drained soil with ample organic matter. Amend the bed with compost and a balanced, slow-release fertilizer at planting time. Loosen the soil to a depth of 10 inches.
Plant the corn in the spring when the soil temperature is at least 60 degrees Fahrenheit. Glass gem corn takes anywhere from 100 to 110 days to go from seed to harvest. Since harvesting is done after the kernels have dried, it can be left on the stalks even longer for drying.
When it comes to eating glass gem corn, there are a few different ways to prepare it. Some people like to grind it into flour or use it to make popcorn. Others enjoy it simply boiled or roasted. One popular variety of glass gem corn is the Pawnee miniature popcorns, which are small enough to be popped whole.
Overall, glass gem corn is a fascinating and beautiful heirloom variety of corn that’s worth considering for your garden. With a little bit of care and attention, you can grow your own rainbow-colored corn and enjoy its unique flavor and texture.

Preparing the Soil
Before you start planting your glass gem corn, it’s important to prepare the soil properly. Here are some steps you can take to ensure your soil is ready for planting:
Choose the Right Soil
Glass gem corn requires well-drained soil with ample organic matter. You can use a garden fork or tiller to loosen the soil to a depth of 10 inches. If your soil is heavy clay, you may need to amend it with sand or perlite to improve drainage.
Add Compost
Adding compost to your soil can help improve its structure and fertility. You can use homemade compost or purchase it from a garden center. Spread a 2-3 inch layer of compost over your soil and work it in with a garden fork or tiller.
Check pH Levels
Glass gem corn prefers a soil pH between 6.0 and 6.8. You can test your soil’s pH using a soil test kit, which you can purchase from a garden center or online. If your soil is too acidic, you can add lime to raise the pH. If it’s too alkaline, you can add sulfur to lower the pH.
Use a Soil Thermometer
Glass gem corn seeds need a soil temperature of at least 60°F (15.5°C) to germinate. You can use a soil thermometer to check the temperature of your soil. If it’s too cold, you can wait until the soil warms up before planting your seeds.
Planting Beds
Choose a planting bed that gets full sun exposure, at least six hours per day. Loosen the soil to a depth of 10 inches. Amend the bed with compost and a balanced, slow-release fertilizer at planting time.
By following these steps, you can ensure that your glass gem corn has the best chance of growing and producing a bountiful harvest.

Choosing and Planting Seeds
Growing glass gem corn is a fun and rewarding experience. One of the first steps to growing this beautiful corn is choosing the right seeds. Here are a few tips to help you get started:
Choosing Seeds
When choosing glass gem corn seeds, it’s important to select a variety that is well-suited to your growing conditions. Look for seeds that are labeled as “flint corn,” as this type of corn is best for making popcorn or grinding into cornflour.
You can purchase glass gem corn seeds from a variety of online and offline retailers. Make sure to choose a reputable supplier and check the seed packet for information on planting and growing.
Planting Seeds
Planting glass gem corn is relatively easy, but there are a few things to keep in mind. Here are the basic steps:
- Choose a planting bed that gets full sun exposure, at least six hours per day.
- Corn requires well-drained soil with ample organic matter. Amend the bed with compost and a balanced, slow-release fertilizer at planting time.
- Loosen the soil to a depth of 10 inches.
- For best results, plant seeds around 1.5 inches deep in rows. Plant your crop in multiple rows or blocks of rows.
- Planting just one or two long rows makes it hard for the corn to use the wind to pollinate. Instead, plant shorter row lengths that are at least 4 to 6 rows wide to form thicker “blocks” of corn.
- In each row, leave a gap of 6-12 inches. You can also cluster 3-4 seeds in a hole and leave a gap between clusters of 3-4 feet.
- Plant in the spring when the soil reaches at least 60 °F / 15.5 °C.
- Plant in full sun and ensure the area is protected from wind.
By following these simple steps, you’ll be well on your way to growing beautiful glass gem corn. Happy planting!

Caring for the Plants
Now that you have planted your glass gem corn, it’s time to take care of them. Here are some tips to help you care for your plants:
Watering
Corn needs plenty of water, especially during the hot summer months. Make sure to water your glass gem corn regularly, at least once a week. If you live in a dry area, you may need to water more often. Water the plants deeply to encourage deep root growth.
Fertilizing
Corn needs plenty of nitrogen, phosphorous, and potassium to grow. You can use a balanced fertilizer to provide these nutrients. Apply the fertilizer when the plants are about 6 inches tall and again when they are about 12 inches tall. Be careful not to over-fertilize, as this can burn the plants.
Weed Control
Weeds can compete with your glass gem corn for water and nutrients. Keep the area around your plants free of weeds by pulling them out by hand or using a hoe. You can also use mulch to help suppress weeds.
Stalk Support
As your glass gem corn grows, it will need support to keep the stalks from breaking in the wind. You can use stakes or cages to help support the plants. Make sure to tie the stalks to the support gently to avoid damaging the plant.
Mulching
Mulching can help keep the soil moist and cool, which is important for growing glass gem corn. You can use organic mulch, such as straw or leaves, to help keep the soil moist and suppress weeds.
Sunlight
Glass gem corn needs abundant sunlight to grow well. Make sure to plant your corn in a location that gets at least 6 hours of sunlight per day. If you live in an area with hot summers, you may want to consider using a high tunnel or greenhouse structure to protect your plants from the heat.
Transplanting
If you live in an area with a short growing season, you may want to start your glass gem corn indoors and transplant it outside when the weather warms up. Make sure to transplant the plants when they are about 6 inches tall and the soil has warmed up to at least 60°F.
By following these tips, you can help your glass gem corn grow strong and healthy. Remember to keep an eye on your plants and adjust your care as needed.

Understanding Pollination
When it comes to growing glass gem corn, understanding pollination is crucial. Glass gem corn is wind-pollinated, which means that the pollen grains are carried by the wind to reach the female flower parts.
To ensure successful pollination, it is recommended to plant corn in blocks of at least three rows instead of a single long row. This increases pollination rates and yields.
The male flower parts, or tassels, are produced at the top of the corn stalks. The female flower parts, or silks, grow from the tips of the ears. The pollen grains fall onto the corn silk, which is where fertilization occurs.
It is important to note that corn plants can cross-pollinate with other corn plants, so it is best to avoid planting different varieties of corn near each other. This can affect the quality and characteristics of the resulting crop.
If you want to save seeds from your glass gem corn, it is recommended to isolate the plants by at least 1/4 mile to ensure that there is no cross-pollination with other corn plants.
In summary, understanding pollination is key to growing a successful crop of glass gem corn. Planting in blocks, avoiding cross-pollination, and isolating plants for seed-saving are all important factors to consider.

Harvesting and Uses
Once your Glass Gem corn is fully matured, it’s time to harvest it. The corn cobs will be dry and hard, and the kernels will have lost their shine and color. You can tell that the corn is ready for harvest when the husks have turned brown and dry.
To harvest the corn, gently pull back the husks and snap off the cobs. You can then remove the kernels from the cobs using a knife or your fingers. Be sure to wear gloves as the cobs can be sharp.
Glass Gem corn can be used in a variety of ways. You can grind the kernels into cornmeal or corn flour, which can be used to make tortillas, bread, and other baked goods. You can also use the kernels to make hominy, a traditional Native American dish made from dried corn kernels that have been treated with an alkali solution.
If you’re growing Glass Gem corn for popcorn, you can harvest the cobs when they’re fully matured and dry. Simply remove the kernels from the cobs and pop them as you would regular popcorn.
Glass Gem corn is also a popular ornamental corn, and the colorful cobs can be used in fall decorations or as a unique centerpiece.
Overall, Glass Gem corn is a versatile and beautiful crop that can be used in a variety of ways. With the right growing conditions and proper harvesting techniques, you can enjoy a bountiful harvest of this stunning corn variety.

Glass Gem Corn as Decoration
If you’re looking for a unique and colorful addition to your garden or decorative display, look no further than glass gem corn. This ornamental corn is known for its stunning array of colors, ranging from deep reds and purples to bright yellows and greens. It’s a great way to add a pop of color and interest to any space.
But glass gem corn isn’t just pretty to look at – it’s also edible! While it may not be as sweet as traditional sweet corn, it can still be used in a variety of recipes, from soups and stews to cornbread and salsa. Plus, the multicolored kernels make for a fun and interesting addition to any dish.
When it comes to decorating with glass gem corn, the possibilities are endless. Here are a few ideas to get you started:
- Use glass gem corn in a fall centerpiece, either on its own or mixed with other seasonal elements like pumpkins and gourds.
- Hang dried glass gem corn on a wreath or garland for a colorful and unique touch.
- Use glass gem corn to create a colorful and eye-catching display in your garden or on your porch.
- Mix glass gem corn with other dried flowers and plants for a beautiful and natural-looking arrangement.
No matter how you choose to use it, glass gem corn is sure to add a touch of whimsy and color to your home or garden. So why not give it a try and see what creative decorating ideas you can come up with?

Conclusion
Growing glass gem corn is a fun and rewarding experience that can add a unique touch to your garden and dinner table. With proper care and attention, you can enjoy a bountiful harvest of these beautiful and delicious ears of corn.
To recap, here are some key takeaways to keep in mind when growing glass gem corn:
- Choose a planting bed that gets full sun exposure, at least six hours per day. Corn requires well-drained soil with ample organic matter. Amend the bed with compost and a balanced, slow-release fertilizer at planting time. Loosen the soil to a depth of 10 inches.
- Allow the soil to warm to at least 60 to 65 degrees before planting to help speed germination. Sow seeds after the threat of frost has passed, and plant your crop in multiple rows or blocks of rows.
- Water your corn regularly, aiming for at least an inch of water per week. Avoid getting water on the leaves, as this can lead to disease.
- Watch out for pests and diseases, and take action promptly if you notice any issues. Common pests include corn earworms, cutworms, and Japanese beetles, while diseases such as gray leaf spot and common rust can also affect your crop.
- Harvest your glass gem corn when the kernels are fully mature and dry. This usually occurs around 110-120 days after planting. Hang the ears in a dry, well-ventilated area to dry further, then remove the kernels from the cob and store them in an airtight container.
By following these tips and putting in a little effort, you can enjoy the beauty and flavor of glass gem corn in your own backyard. Happy growing!