Nirvana Supersweet Corn

seeds

Zea mays
(75 days) Supersweet F-1 hybrid.

Bicolor, 8" ears, 16-18 rows. We’ve been saying “Nevermind” to Supersweet corn for ages: the early years of sh2 breeding never came close to capturing the flavor and tenderness we demand. But a select few progressive Supersweets brought balanced excellence to our attention in our central Maine trials. At your first bite into the crisp but tender kernels, Nirvana’s wash of full corn flavor hits and persists. The bold sh2 sweetness and perfect flavor swirl. Holding quality in the field and after harvest is superb. Do not direct-seed until soil temps exceed 65˚. Isolate from all other corn types by 300 feet.

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ships year-round

660 Nirvana

A: 1/2oz

$5.00

B: 2oz

$15.00

C: 8oz

$34.00

D: 1lb

$62.00

E: 5lb

$273.00

Quick Details

Hybrid Status: F-1 hybrid
Corn Hybrid Type: supersweet F-1 hybrid
Days to Maturity: 75 days

Compare

Compare with other Supersweet Corn

Variety	Product Type	Hybrid Status	Corn Hybrid Type	Days to Maturity
Moonshine	seeds	F-1 hybrid	supersweet F-1 hybrid	78 days
Nirvana	seeds	F-1 hybrid	supersweet F-1 hybrid	75 days

Shipping

From early May through October 31, items shipping from our garden seeds warehouse ship twice a week, usually Tuesday and Thursday. For quickest turnaround time order online by noon Monday or Wednesday.

Additional Information

Supersweet Corn

For decades, Fedco has been a firm proponent of “eating quality” in sweet corn with flavor, texture and kernel depth as our in-house metrics. We’re a “corny” flavor bunch, dismissing sweetness as the sole measure of breeding progress. Until recently, we hadn’t encountered eating excellence in a Supersweet (sh2) variety. Breeders have now balanced the extra-sweetness with tenderness, creaminess and full flavor. With the sh2 gene, conversion of sugar to starch occurs at a much slower rate, so corn stays sweet long after harvest.

Culture: Supersweet types germinate poorly in cool soils. Wait until soil temps exceed 65° for direct seeding—mid-June in central Maine.

Supersweets require 300' isolation from all other corn types to prevent the kernels of other corns from becoming starchy and tough. If you don’t have space to isolate, choosing a Supersweet means foregoing other sweet corn types.

Sweet Corn at a Glance

	variety	days	color	type (see below)	height	ear length	# rows
506	Cafe	68	yellow	Synergistic	60-72"	8"	14-16
516	Ashworth OP	72	yellow	Normal Sugary	60"	6-7"	12
541	Bodacious RM	77	yellow	Sugary Enhanced	87"	8"	18
561	Incredible RM	85	yellow	Sugary Enhanced	90"	8"	18
572	Latte	68	bicolor	Synergistic	48-72"	8"	14
574	Espresso	70	bicolor	Synergistic	72"	6"	12-16
582	Ambrosia	75	bicolor	Sugary Enhanced	78"	8"	16
590	Cappuccino	78	bicolor	Synergistic	72-84"	8"	14-16
592	Sparkler	78	bicolor	Synergistic	84"	8-9"	16-18
636	Luther Hill OP	82	white	Normal Sugary	48"	3-6"	12
660	Nirvana	75	bicolor	Supersweet	83"	8"	16-18
595	Moonshine	78	yellow	Supersweet	84"	8"	16-18

Types of sweet corn

Normal Sugary (su): standard varieties with traditional sweet corn texture & flavor. Sugar converts to starch quickly, so eat them within a few days. Tend to have high yields and germinate well in cool soils.

Sugary Enhanced (se): more sugar than su, tender kernels & slightly longer storage time. The * indicates heterozygous (only one parent contributes the se gene); all others are homozygous (both parents se).

Supersweet (sh2): 4 to 10 times the sugar content of su and se. Conversion of sugar to starch occurs at a much slower rate. Stays sweet long after harvest. Extra shriveled seed does not germinate well in cool soil.

Synergistic: more sugar than se. Very tender with long harvest and storage windows. Can be homozygous or heterozygous se with added sh2 kernels.

TripleSweet® Sugary Enhanced: has homozygous se kernels, and 25% of these also contain the sh2 trait.

Corn

About 85–200 seeds/oz. Seeds per packet vary.
- Open-pollinated selections average 100 seeds/oz
- Normal sugary varieties 140 seeds/oz
- SE cultivars with shrunken seeds 150-160 seeds/oz
Days to maturity are from emergence after direct sowing; for transplants, subtract 20 days.

Culture: Untreated sweet corn seed will not germinate in cold wet soil. Please be patient and wait till soil warms to at least 60° before sowing, or start seedlings indoors and transplant at 3–6" before taproots take off. Minimum soil temperature 55°, optimal temperature range 65–85°. Tender, will not survive frost. Heavy nitrogen requirements.

Germination Testing

For the latest results of our germination tests, please see the germination page.

Our Seeds are Non-GMO

All of our seeds are non-GMO, and free of neonicotinoids and fungicides. Fedco is one of the original companies to sign the Safe Seed Pledge.