Species
Zea maysCornThe Story
Plant Bio
Glass Gem corn is renowned for its vibrant, multicolored kernels, combining beauty with functionality as a food source.
The unique color mix of kernels makes this cultivar exceptionally attractive, setting it apart from traditional corn varieties.
Uses & Benefits:
Essentials
At a Glance
Plant Type
Fruit Vegetable
Height
96 inches
Width
18 inches
Light
Full Sun
Zones
6, 7, 8, 9, 10
Water
High
Humidity
Average
Lifespan
Annual
Native To
Americas
Toxicity
Non-toxic
Bloom period
Mid-summer – Late summer
In flower about 2 months of the year
Planting
How to Grow
- Tuck seeds 1 inch deep into well-draining soil in early spring.
- Water regularly to keep soil moist but not waterlogged.
- Thin seedlings to 12-18 inches apart once established.
- Provide full sun for optimal growth and vibrant colors.
- Fertilize with a balanced fertilizer every 4-6 weeks during the growing season.
- Support tall varieties with stakes or cages to prevent lodging.
Pro Tip
Use organic compost to enrich soil and promote healthy, colorful stalks.
Keep It Thriving
Care Guide
Do
- Water consistently to keep soil evenly moist 💧
- Apply organic mulch to retain moisture and suppress weeds 🌱
- Monitor for pests and diseases regularly
Don't
- Avoid overwatering to prevent root rot ❌
- Do not plant in shaded areas; they need full sun
- Avoid excessive fertilization which can cause weak stalks
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Fertilize | ||||||||||||
| Harvest | ||||||||||||
| Plant |
Watch Out For
Pests & Diseases
Common Pests
Common Diseases
In the Garden
Landscape Uses & Companions
Landscape Uses
Companion Plants
Multiply
Propagation Methods
Good to Know
Common Questions
Glass Gem Corn questions
What zones can Glass Gem Corn grow in?
Glass Gem Corn is hardy in USDA Zones 6–10. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.
Is Glass Gem Corn deer resistant?
Yes — Glass Gem Corn is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.
When does Glass Gem Corn bloom?
Glass Gem Corn typically blooms in mid-summer through late summer. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.
Does Glass Gem Corn need full sun?
Glass Gem Corn does best in full sun (6+ hours).
More Zea to compare
Keep exploring
Explore the genus
Hardy in your zone?
Grow Glass Gem Corn with confidence
See it in a design of your actual yard, get zone-matched care reminders, and track it season by season in your garden journal.