Rio Grande Blue Flour Corn Seeds


This packet sows up to 16 feet.
Availability: In Stock
'Rio Grande Blue' corn's origins trace back to the Pueblo Native Americans in New Mexico. Blue corns, on average, have 20% higher protein content, more antioxidants, and a lower glycemic index than standard corn. Hang the 10"–12" ears to dry for a beautiful autumn display then save them to make delicious meals. Recipe inside for chocolate atole, a traditional warm beverage served during the Mexican holiday, Dia de los Muertos.
$3.49 8 grams

Botanical Name: Zea mays

Days to Maturity: 90–100 days

Family: Poaceae

Native: Americas

Hardiness: Frost-sensitive annual

Plant Dimensions: 5'–7' tall

Variety Information: Two or more 10"–12" long ears (may grow longer in ideal conditions) on each stalk, with dark blue kernels.

Type: Flour (Learn More)

When to Sow Outside: RECOMMENDED. 1 to 2 weeks after your average last frost date, and when soil temperature is at least 60°F; ideally 65°–90°F.

When to Start Inside: Not recommended.

Days to Emerge: 5–10 days

Seed Depth: 1"–1 ½"

Seed Spacing: A group of 2 seeds every 12"

Row Spacing: 24"–36"

Thinning: When 4" tall, thin to 1 every 12"

Special Instructions: Do not mulch when weather is still cool; the roots of young plants need to be in soil that is warmed by the sun. When the weather warms up and plants are established, mulch to a depth of 2" or 3" with a material such as straw, leaves, or compost, to conserve moisture, reduce weed growth, and keep the roots warm. Place stakes or cages upon transplanting to avoid disturbing expanding roots later.

Harvesting: Let the ears dry on the stalks. They are ready for harvest when they are hard and you can no longer leave a mark on them with your fingernail. Before the first fall frost, give each ear a twist until it breaks off. Peel back the husks, then hang the ears in a cool, dark, dry place for 4 to 6 weeks to cure. This is important to prevent mold.

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Rio Grande Blue Flour Corn Seeds Reviews

1 review
Blue corn seeds
Review star icon Review star icon Review star icon Review star icon Review star icon Nov 23, 2019
I was excited when I saw the blue corn seeds & bought several packets. I live next door to my brother, he is 23 years older than me. I was born in 1969. He planted the seeds but they never came up so you not only disappointed me by taking my hard earned money &butt you also disappointed my 73 year old brother. He keeps the water running all the time over there so I know they got water. We also had a higher than usual amount of rainfall. I believe he planted April.
Steve Hurley from TX
Owner Response: Hi Steve, We are so sorry to hear you had poor germination with our seeds. We do test our seeds regularly with a third-party laboratory to ensure the germination rate exceeds federal and our own standards. We do guarantee our seeds are always happy to help. We strive to give all of our customers a great growing experience with high-quality seeds and good growing information. In our experience, corn is really particular about soil temperature. As a large seed, it is prone to rot if the soil isn't at least 60 degrees F, which can be a few weeks after your average last frost, as soil temperature lags behind air temperature. At any rate, a customer service agent will be with you shortly to help. Thank you for taking the time to share your experience.