Description
Double Red Sweet Corn is an organic Zea mays variety with deep purple-red sweet kernels carried on purple stalks. Developed by Dr. Alan Kapuler and shared without patent restriction, it brings striking anthocyanin-rich color to the summer vegetable garden while still needing classic block planting for good corn pollination.
Why Grow It
- Deep dark purple-red sweet kernels bring dramatic anthocyanin color to harvest baskets.
- Purple stalks add ornamental value while ears develop.
- Certified organic seed listing with 25 seeds.
- Harvest in about 85 days under warm growing conditions.
- Plant in a square block with at least 4 rows for reliable wind pollination and well-filled ears.
Growing Information
| Botanical name | Zea mays |
|---|---|
| Life cycle | Warm-season annual vegetable |
| Mature height | Full-size sweet corn stalks; height varies with fertility, spacing, and season |
| Light | Full sun |
| Bloom or harvest window | Harvest ears in about 85 days from sowing under warm growing conditions |
| Seed count | 25 certified organic seeds |
| Sowing advice | Direct sow after soil is warm and frost danger has passed. Plant in blocks or a square pattern with at least 4 rows for reliable wind pollination rather than a single long row. |
| Spacing | Plant in blocks with rows close enough for wind pollination; thin plants according to local sweet-corn spacing for sturdy stalks and well-filled ears. |
| Germination | Best germination at 75-80 F in warm soil with steady moisture. |
Best Uses
- organic sweet corn patches
- red kernel harvests
- anthocyanin-rich garden color
- summer vegetable gardens
- seed-saving gardens
- block-planted corn beds
FAQ
How many seeds are included?
This listing is for 25 certified organic Double Red Sweet Corn seeds.
Why should corn be planted in blocks?
Corn is wind pollinated. A square block with at least 4 rows gives pollen more chances to reach silks from multiple directions, helping ears fill better.
When should I sow it?
Sow after frost danger has passed and soil is warm. The source notes best germination temperatures around 75-80 F.
How long until harvest?
Expect harvest in about 85 days under warm, suitable growing conditions.
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