Sweet corn harvested straight from the garden is a delicious treat, but can be challenging for home gardeners to grow. Corn is wind-pollinated, so planting in blocks of at least 3 to 4 short rows may result in better pollination than one or two long rows. Each stalk produces one or two ears.
Cultural tips for growing corn, UC IPM
Planting
- Direct seed 8 to 12 inches apart in May to June, possibly in April or July depending on weather and local conditions.
- For a constant supply, plant small patches every 2 to 3 weeks or when the most recent seedlings have 3 to 4 leaves.
Harvesting
- Sweet corn is ready for harvest about 17 to 24 days after the first silk strands appear, more quickly in hot weather, more slowly in cool weather.
- Irregularly filled ears indicate poor pollination.
Pest management
Pests and disorders of corn, UC IPM
More links
- Video: Increase Your Sweet Corn Yield [4:33]
- Video: Protecting Sweet Corn Ears [4:41]
- Video: 3 Sisters Garden [4:00]
- 2007 corn trial
- 2008 corn trial
Recommended varieties for Santa Clara County*
| Jubilee | Mid-season variety of sweet corn with all ears maturing at the same time |
| Peaches and Cream | Very early variety of yellow and white corn, with an extended harvest time |
| Silver Queen | Late season variety of white sweet corn, can be eaten fresh or frozen |
Other recommended varieties: Early Sunglow, Golden Bantam, Honey and Cream, Kandy Korn, Jubilee, Platinum Lady
* Many other varieties may also do well here in Santa Clara County. This list is based on UC Master Gardener trials, taste tests, and feedback from local growers.