Astronomy Domine Corn on a white background.
Astronomy Domine Corn on cobs with kernels on a dark background.
A close-up of Astronomy Domine Corn kernels on the cob on a black background.
A close-up view of a couple of Astronomy Domine Corn cobs on dark background.
Astronomy Domine Corn on a white background.
Astronomy Domine Corn on cobs with kernels on a dark background.
A close-up of Astronomy Domine Corn kernels on the cob on a black background.
A close-up view of a couple of Astronomy Domine Corn cobs on dark background.

Corn Seeds,
Astronomy Domine

4.213 Reviews#CN189 · 50 seeds
Price
Regular price $4.50
Regular price $0.00 Sale price $4.50
Save $-4.50
/

FREE U.S. SHIPPING2-YEAR GUARANTEE

Description

(Zea mays) Sweet Corn. Early to mid-season. This sweet corn has the kind of color that makes you stop and stare, yet it’s the flavor that keeps you coming back. Astronomy Domine was selected in Utah by Joseph Lofthouse from a colorful sweet-corn landrace originally created by Alan Bishop on his southern Indiana farm, where he crossed several sweet corn cultivars and selected for flavor, nutrition, and beauty. The ears begin showing their stunning range of color early, even at the milk stage, and the flavor stays true to that older style of sweet corn—rich, balanced, and deeply satisfying. It matures in about 65 to 70 days, making it a dependable choice even in shorter-season gardens. Fresh eating is a joy, but this one also brings a little wonder to the harvest basket.

Plant Details

Botanical Name
Zea mays
Life Cycle
Annual
Sun Requirement
6–12 hr.
Days to Germinate
7–10
Days to Maturity
65–70
Planting Depth
1–2 in.
Plant Spacing
12 in.
Ideal Temperature
60°F
Frost Hardy
No

Growing Guide

When to Grow

Plant Astronomy Domine corn once soil temperatures are above 65 degrees F, after all danger of frost is past, typically in late spring to early summer. Succession planting every 2-3 weeks can extend the harvest period. For specific frost dates in your region, consult a local agricultural extension service or a gardening website that provides this information based on your USDA hardiness zone. If you're not sure how to find your first and last frost dates, consult our blog post 'Our Experts Answer Questions, Share Resources.'

How to Sow and Plant

Sow seeds about 1-2 inches deep and space them 6-12 inches apart in rows that are 36 inches apart. Thinning to 12 inches apart will help ensure each plant has enough space to thrive. This variety is wind-pollinated, so planting in blocks of at least five rows will improve pollination rates. Avoid planting too early as cool soil can cause seeds to rot due to their high sugar content​​. Sprouts form in 7-10 days after planting.

How to Grow

Astronomy Domine corn reaches maturity in about 65-70 days. It is tolerant of cold spring soils and is selected for its resilience in challenging growing conditions. Regular watering and maintaining a weed-free environment will support healthy growth. Consider using organic mulches to retain soil moisture and regulate temperature​​. Ensure 6-12 hours of sun daily.

How to Save Seeds

  • Corn is wind pollinated and will easily cross with other varieties (including GMO corn!). You will need at least 1 mile of isolation to avoid cross pollination. You can also use staggered timing or caging techniques.
  • Hand pick ears when fully dried on stalk. Seeds keep best if left on the ear; just remove at planting time.
  • Sweet corn seeds will remain viable for 2 years; dent corn will last up to 5 years when properly stored.

FAQ

What are the ideal growing conditions for Astronomy Domine corn?

Full sun, moderate watering, and temperatures of 75-80 F are ideal. It is a half-hardy variety that requires protection from cold weather.

How should I space Astronomy Domine corn plants?

Sow seeds 1-2 inches deep and space plants 12 inches apart within rows that are 36 inches apart. Plant in blocks of at least five rows to ensure good pollination.

When is the best time to plant Astronomy Domine corn?

Direct sow into the richest soil available 2-3 weeks after last spring frost. For a continuous harvest, succession plantings can be made every 2-3 weeks.

Browse our full range of corn seeds.

Customer reviews

4.2 / 5 13 Reviews

What gardeners are saying

  • Early and fast: Ears in around 60 to 75 days from sowing.

  • Strong germination: Nearly every seed comes up and stalks shoot up fast.

  • Mildly sweet, starchy: Not a sugary sweet corn; starchy, slightly chewy kernels.

  • Multiple ears per stalk: Often 2 to 3 ears on each stalk.

  • Heads up: Ears can run small and color varies a lot plant to plant.

More to grow!

See all Corn Seeds