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Herbs, Flowers & Specialty CropsOrnamental Corn Planting Calendar
Ornamental corn is grown for color, not for eating, and its calendar is built around a long season, isolation from other corn and a slow, careful dry-down.
Key points
- Plant after the last frost in warm soil, mindful of days to maturity.
- Isolate ornamental corn from other corn by distance or timing.
- Plant in blocks for good pollination.
- Dry ears thoroughly in a ventilated space before storing.
When should you plant ornamental corn?
Like other corn, ornamental types are frost tender and want warm soil. Plant after your last spring frost, when soil has warmed and the weather has settled. Many ornamental varieties need a long season to reach full color, so check the days to maturity on the packet and compare it with the gap between your last spring frost and first fall frost.
For example, if your frost-free season is short and a variety needs most of it, plant on the early side of the safe window and keep row cover ready for a late cold snap.
Keep a record of the planting date and the number of days to first colored ears. That number differs by variety and season, and it will tell you whether a short-season site can grow the longer types.
How do you isolate ornamental corn?
Corn is wind pollinated, so ornamental corn crosses with other corn nearby. A cross with sweet corn or field corn can muddy colors and change kernel type. Extension and seed-saving sources suggest isolation distance or staggered planting so silking does not overlap, and local guidance gives the numbers for your area.
If you also grow popcorn or sweet corn, plant ornamental corn well away or on a different schedule, and ask neighbors what they are growing.
Choose varieties for the use you have in mind, whether bundled ears, husk displays, stalks for fall decoration or seed for sale. Ear size, color pattern and plant height differ widely, and some types need a longer season than others. Read the seed description carefully and compare days to maturity with your frost-free season. A small trial of a few varieties teaches you which colors and sizes your site can grow reliably before you plan a larger planting.
What soil and spacing does it need?
Ornamental corn grows best in full sun and fertile, well-drained soil. Take a soil test and follow your extension recommendations for fertility, since corn is a heavy feeder. Nutrient management rules vary by state. Plant in blocks rather than a single row so pollination is better and ears fill out.
Corn grown for decoration is also vulnerable to wind lodging and to animals. Birds, raccoons and deer may take ears near maturity, so plan fencing or netting if you have pressure.
What care do plants need during the season?
Early weed control matters most, followed by water during dry spells and especially at silking. Scout for ear-feeding insects and ear mold, which can ruin ears grown for display. Have problems identified by your county extension office before using any pesticide, and follow the label, including pollinator protection and any harvest interval. Applicator licensing varies by state.
- Weed early while plants are small.
- Water at tasseling and silking if rain is short.
- Scout ears for insects and mold in late summer.
When should you harvest ornamental corn?
Ears are usually harvested when husks have dried and kernels are hard and fully colored, often after a light frost has ended the season. Pull back husks to check, and harvest on dry days. If a hard freeze threatens before ears are mature, harvest and move them under cover to finish drying.
If you sell ornamental corn, check state and local rules about sales, and label it clearly as ornamental if it is not meant for eating.
How do you dry and store ornamental corn?
Dry ears in a well-ventilated, dry, rodent-resistant space, spread so air moves around each ear, until kernels are hard and the cob is dry. Wet storage causes mold and fading. Store dried ears away from moisture and direct sun to preserve color. Ornamental corn is for decoration; do not eat it unless the seed source says it is edible.
How do you keep varieties pure over the years?
If you save seed, plan isolation from the start and keep notes on which ears came from which plants. Select ears for color and form, and save seed only from fully mature, dry ears. The National Center for Home Food Preservation does not cover seed saving, so rely on extension and seed-saving organizations for details.
Plan display use in advance as well. Harvested ears keep their color best in dry, cool, dark storage, and husks can be bundled or braided while still pliable. Decide how you will use them before harvest so you are not trying to dry too many ears in too little space.
Sources and further reading
Last reviewed: November 2026. Educational information, ranges only. Confirm timing with your county extension office.