Customer Service Hours
Mon-Fri 8-4 MST
Features
Family
Poaceae (formerly Gramineae). Grass family, includes corn, wheat, oats, rice, lawn grasses, and ornamental grasses.
Native
Americas
Life Cycle
Frost-sensitive annual
Plant Height
Tall (Greater than 24")
Further Information
Growing Conditions
Frost Sensitive
Plant Resistance
- Northern Corn Leaf Blight Resistant
- Stewart's Wilt Resistant
About Corn
Zea mays (hybrid)
8" ears. Bicolor kernels are white and yellow. 'Ambrosia' is a homozygous sugary enhanced (se) type corn that is resistant to Stewart's Wilt and Northern Corn Leaf Blight.
Planting Corn
Plant Spacing
A group of 2 seeds every 12"
Light Required
Full sun
Plant Height
Tall (Greater than 24")
Planting Depth
1" – 1 ½"
Planting Details
| Row Spacing | 24" – 36" |
|---|---|
| Seed Depth | 1" – 1 ½" |
| Seed Spacing | A group of 2 seeds every 12" |
| Thinning | When 4" tall, thin to 1 every 12" |
| Germination | 5 – 10 days |
| Start Indoors | Not recommended; roots sensitive to transplanting. Best results occur when seedlings are transplanted less than 2 weeks old. |
| Direct Sow | RECOMMENDED. 1 to 2 weeks after your average last frost date, and when soil temperature is at least 60°F, ideally 65°‒90°F. |
| Special Care | Keep area weeded, especially when plants are young and have shallow roots. To guarantee good pollination, gently shake the tassels to release the pollen onto the silks. You can also hand pollinate by pulling off a tassel from one plant and wiping it on the silks of several ears. If you notice "skips" or blank spaces on an ear where a kernel should be, that is an indication of inadequate pollination. |
| Growing & Harvesting | Sweet corn is ready about 3 weeks after the silks appear. Harvest when the silks are brown, but not dried, and the husks are dark green; ears should be plump, and rounded rather than pointed at the tip. To test for ripeness, gently pull back the husk and pop a kernel; the liquid should be whitish; if it is still clear, ears are not quite ready. |
Find Your Frost Date & Grow Zone
Average First Frost Date
October 19
Average Last Frost Date
May 19
Your Hardiness Zone is
5b
Send Your Recommendation
Total 5 star reviews: 7 Total 4 star reviews: 0 Total 3 star reviews: 1 Total 2 star reviews: 1 Total 1 star reviews: 0
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Rating
Which best describes you as a gardener?
9 reviews
- Debbie M.Verified BuyerRated 3 out of 5 stars1/10/26Ambrosial sweet corn seeds
These too were very small and only was able
To harvest two.
Which best describes you as a gardener? BeginnerBIBotanical Interests1/23/26Hey Debbie,
Thank you for taking the time to share your experience with the Ambrosia Sweet Corn Seeds. We're sorry to hear that you only got a small harvest from your planting—that's definitely disappointing when you're looking forward to enjoying fresh corn.
Sweet corn yield can be affected by several factors including planting density, soil conditions, watering, and pollination. Corn benefits from being planted in blocks rather than single rows to improve pollination, and consistent moisture is key for good ear development. Growing conditions and timing can really impact the final harvest size.
We appreciate you giving the Ambrosia variety a try and sharing your growing experience with other gardeners. Your feedback helps us understand how our seeds perform in different conditions. Keep on growing 🌻️
- Justin M.Verified BuyerRated 5 out of 5 stars1/3/26Darn good corn
I grew this last year and enjoyed it so much that I am growing it again this year. Quite impressive vigor and the level of sweetness is incredible!
Which best describes you as a gardener? IntermediateBIBotanical Interests1/3/26Hey Justin,
Thank you so much for taking the time to share your experience with our Ambrosia Sweet Corn Seeds! We're absolutely thrilled to hear that you enjoyed them so much last year that you're growing them again this year! That's the best compliment we could ask for. The incredible vigor and sweetness of the Ambrosia variety really is something special - it's one of our favorites too! Thank you for choosing us again and for sharing your growing success with us. Keep on growing 🌻️
- Jenn T.Rated 5 out of 5 stars1/3/255 Stars
This was the sweetest, best-tasting corn I’ve ever grown! I’m in zone 5/6 and it was more like “waist high by the 4th of July”. I’m back for more seed for 2025!
- Leonard B.Verified BuyerRated 5 out of 5 stars8/22/245 Stars
Interestingly, I just picked the first ears not more than 20-minutes ago. They are perfect. We’ll be roasting them as part of dinner tonite. More to come.
Which best describes you as a gardener? Intermediate - Jill F.Verified BuyerRated 5 out of 5 stars6/15/245 Stars
Looking forward to watching these seeds flourish in my garden!!
Which best describes you as a gardener? Expert