Xanadoo Sweet Corn
Zea mays
Approximately ~ 50 seeds per packet
Packed for 2026
Quick Reference: Annual | Open-Pollinated | Full Sun | Zones 4–8 suggested | Sow 1–2 inches deep | Space 10–12 inches | Rows 30–36 inches | Approximately 82 days to maturity | Harvest at milk stage for fresh eating.
Origins and History of Domestication
Xanadoo Sweet Corn belongs to Zea mays, one of the world’s most important domesticated crops. Corn, or maize, was domesticated in what is now Mexico from wild teosinte, with archaeological and genetic evidence placing its early domestication roughly 9,000 years ago. Indigenous farmers gradually selected plants for larger ears, more exposed kernels, improved yield, and other desirable characteristics. Over thousands of years, maize became deeply integrated into the agricultural, culinary, and cultural traditions of Indigenous peoples throughout the Americas. Sweet corn developed much later from maize types carrying genetic mutations that cause kernels to accumulate more sugar and less starch when harvested in the immature “milk” stage.
Spread and Diversification
From its center of domestication in Mexico, maize spread throughout Central America, South America, the Caribbean, and eventually North America, where Indigenous farmers developed thousands of locally adapted varieties. After European contact, maize traveled rapidly to Europe, Africa, Asia, and other parts of the world. Farmers selected corn into numerous types, including flour, flint, dent, popcorn, and sweet corn.
Our Xanadoo corn which we sourced from Open Circle Seed of Potter Valley, California is an open-pollinated sweet corn, with approximately 82 days to maturity. This should not be confused with the similarly named Xanadu, a modern bicolor F1 supersweet hybrid.
Appearance and Characteristics
Xanadoo is an open-pollinated sweet corn grown as a warm-season annual. Like other sweet corns, it produces tall, upright stalks with broad green leaves, tassels at the top of the plant, and silk-bearing ears along the stalk. Its open-pollinated character is particularly valuable to gardeners and seed stewards because properly isolated plants can produce seed that remains generally true to type from generation to generation. The variety is listed at approximately 82 days to maturity and is recommended for full sun and moist, well-drained soil.
Culinary Uses
Xanadoo is best enjoyed as a fresh sweet corn when its kernels are tender, juicy, and at the milk stage. Freshly harvested ears can be boiled, steamed, roasted, or grilled and served directly from the cob. The kernels can also be removed for succotash, corn salads, soups, chowders, casseroles, relishes, salsas, and vegetable dishes. For the finest flavor, sweet corn should be prepared or refrigerated soon after harvest because kernel sugars gradually convert to starch after picking.
Growing Tips and Vegetation Zones
Xanadoo grows best in full sun and fertile, well-drained soil with consistent moisture. The variety's supplier lists it for approximately USDA Zones 4–8, although corn is an annual and USDA hardiness zones are less important than having a sufficiently long, frost-free growing season. Gardeners in warmer zones can also grow sweet corn by adjusting planting dates to avoid excessive heat during pollination.
Direct sow after danger of frost has passed and the soil has warmed to at least about 55–60°F; warmer soil generally produces faster and more uniform emergence. Xanadoo's supplier gives a germination soil-temperature range of approximately 55–65°F and a germination period of about 4–14 days. Plant corn in blocks of several short rows rather than one long row because corn is wind-pollinated and block planting improves kernel development.
Space plants approximately 10–12 inches apart, with rows about 30–36 inches apart. Corn is a relatively heavy feeder, so incorporating compost or well-aged organic matter before planting and providing additional nitrogen during rapid vegetative growth can improve performance. Maintain even soil moisture, especially during tasseling, silking, and ear development.
Sowing Depth
Plant Xanadoo seeds approximately 1–2 inches deep under normal garden conditions. In cooler or heavier soils, plant toward the shallow end of that range; somewhat deeper planting may be appropriate in warm, dry soils. The current grower listing recommends a planting depth of 1–2 inches.
Days to Maturity
Allow approximately 82 days from sowing to maturity, recognizing that temperature, soil fertility, moisture, planting date, and local climate can shift the actual harvest period. For an extended fresh-corn harvest, gardeners can make successive plantings roughly 10–14 days apart where the growing season permits.
Harvesting Guidance
Watch the ears closely as the silks turn from fresh green to brown and dry. The husks should remain green, while the ears should feel plump and completely filled. Peel back a small portion of the husk and puncture a kernel with a fingernail. A milky liquid indicates the ideal fresh-eating stage; clear liquid generally means the ear is immature, while thick or doughy contents indicate that it has passed peak tenderness.
Harvest in the cool morning when possible by holding the stalk firmly, pulling the ear downward, and twisting it away from the stalk. Use or refrigerate the ears promptly for the best sweetness and texture.
For seed saving, allow selected healthy ears to remain on the plants well beyond the fresh-eating stage until the husks and kernels have thoroughly matured and dried. Because Xanadoo is open-pollinated, it should be isolated from other corn varieties if genetically true seed is desired. Substantial isolation is recommended for seed production because corn readily cross-pollinates by wind.
