By Nik Crawley, founder of GardenTrack · Updated July 26, 2026
✓ In your garden
Black Beauty is the zucchini that taught America what a zucchini looks like — a near-black, glossy, cylindrical squash on a compact bush plant, and a genuine 1957 All-America Selections winner. It's dead-reliable, early, and almost aggressively productive, which is exactly its double edge: pick it small and daily and it's one of the best beginner vegetables there is; ignore it for a few days and it balloons into a watery, seedy marrow. The honest cautions are the ones every zucchini shares — it's perishable, and it carries no defense against squash vine borer or powdery mildew.
it's yours — saved right here, no account
Black Beauty zucchini — near-black glossy green, faintly ribbed cylindrical fruit in a basket (these are mature county-fair specimens; pick yours smaller, at 6–8 in). Eyeball-verified for the signature near-black skin. · Photo: Eric Polk
(CC BY-SA 4.0, via Wikimedia Commons)
· source
“The dark-green zucchini that set the American standard — dead-reliable, early, and almost aggressively productive. That same vigor is the catch: pick it every day or the fruit balloons into a watery, seedy club, and the plant has no built-in defense against squash vine borer or powdery mildew.”
Days to maturity48–55 daysfrom direct sowing; the AAS record lists 48
Plant / speciesCucurbita pepo, bush 18–24 incompact — a raised-bed and container zucchini, not a vine
Pedigree1957 AAS winnerbred by John Scarchuk; not an 'ancient heirloom'
ReliabilityBeginner-proof 5/5
Vigorous, fast to germinate in warm soil, and forgiving — one of the most dependable first vegetables anyone can grow, and it crops in under two months.
YieldOverwhelming 5/5
A couple of healthy plants out-produce most families' appetite. That's a strength and a warning in one breath: this is the plant behind every 'please take some zucchini' porch basket.
The harvest windowBlink and it's a club 2/5
Skip picking for two or three days and an 8-inch fruit becomes a foot-long marrow — watery, pithy, hard-seeded, and flat-tasting. Big is not better with this squash; it rewards daily picking, not patience.
Pest defenseNone bred in 1/5
It's Cucurbita pepo, the squash vine borer's favorite host — a single larva in the stem can wilt a thriving plant overnight — and it has no powdery-mildew resistance, so expect white leaves by late summer.
The most reliable squash you can plant — as long as you plant fewer hills than you think you need and pick every single day.
MildSlightly sweetCreamy-white fleshTender when young
✓ Reliable, early, wildly productive — the beginner's zucchini~ Pick daily at 6–8 in or it turns to seedy marrow✗ No borer or mildew resistance — scout and cover
Numbers from university growing guides. Ratings are our take, judged against all summer squash. Tap a meter to see why.
Growing basics — shared by every summer squash
Black Beauty Zucchini grows like any other summer squash. The full picture — how deep to plant, spacing, feeding, pests, harvest — lives on the Summer Squash page so it's maintained in one place.
Greenhouse or cover on: your start slides ~4 weeks earlier and your harvest stretches ~3 weeks later (shown striped).
Planting seeds straight in the ground only works where the season's long and warm — most gardeners start seeds indoors or buy young plants, or you'd pick your first tomato right as frost hits.
We don't have enough sourced timing for black beauty zucchini to say whether it finishes before your frost. Your local frost dates are the number to plant by.
Toughen up outside
late Apr – early May
Move plants outside
early May – early May
Typical dates for zone 6b — set your zone or ZIP above for yours.
Growing Black Beauty Zucchini — the things that trip people up
Pick it small and pick it often. Black Beauty eats best at 6–8 inches with glossy skin, and at peak it needs checking every day or two — leave it and the fruit turns watery and seedy fast. Frequent harvest is also what keeps the plant setting new fruit, so daily picking is the whole game.
Plant fewer hills than you think. Its signature is overwhelming yield; two healthy plants feed a household. Over-plant and you create the 'zucchini avalanche' — plan for a glut and grate-and-freeze the overflow rather than growing a whole row.
Cover early for the borer. As a Cucurbita pepo it's the vine borer's preferred host, so float row cover over young plants until they flower, then remove it for pollination. Set your zone on the [summer squash page](/plants/squash-summer/) for your sowing dates.
From university growing guides (see Sources).
Where Black Beauty comes from
Black Beauty is a real 1957 All-America Selections winner — that award is confirmed on the AAS record, which credits breeder John Scarchuk, a Connecticut vegetable breeder tied to the University of Connecticut at Storrs. So it's not catalog myth: this is a mid-1950s stabilized open-pollinated variety, now old enough to be called an heirloom.
What's misleading is the 'ancient heirloom' framing some catalogs reach for. The zucchini type itself only emerged in 19th-century Italy, and Black Beauty is a 1950s American introduction, not something handed down for centuries. Its parentage is often reported as a Salerno × Caserta-type cross (Caserta was a 1949 UConn release), which is plausible but not something we could confirm from a primary breeding record. What's not in doubt is its influence: Black Beauty did more than any variety to make very-dark-green, cylindrical zucchini the default American summer squash.
The near-black zucchini everyone pictures
The name is literal. Black Beauty's skin is the darkest of the common zucchini — a glossy, near-black green with faint ribbing — over creamy-white, fine-grained flesh. When you picture 'a zucchini,' you're almost certainly picturing this one, because it set the supermarket standard.
Just as useful is the plant. Despite a few catalogs mislabeling it 'vining,' Black Beauty is a compact bush, roughly 18–24 inches tall, so it fits raised beds and large containers where a sprawling vining squash won't. It bears early and heavily on that small footprint — the classic 'one plant feeds the block' zucchini.
The zucchini avalanche — its blessing and its curse
The reason to grow Black Beauty and the reason it becomes a running joke are the same trait: relentless vigor. It starts cropping in under two months and then does not stop, so a couple of plants out-produce most families' appetite. This is why zucchini is the vegetable people leave anonymously on doorsteps.
The trap is the harvest window. Pick at 6–8 inches with glossy skin and the flesh is tender and mild; skip two or three days and that same fruit is a foot-long marrow with watery, pithy flesh, hard seeds, and a toughened skin. Big genuinely is worse here. The fix is discipline, not a product: check the plant every day or two at peak, pick small, and plant fewer hills than instinct tells you to.
Growing Black Beauty
Give it full sun — 8 hours or more — and rich, well-drained soil. Direct-sow after your last frost once the soil is at least 65–70°F at a 2-inch depth (Minnesota Extension says 70°F); it germinates in 7–14 days and dislikes root disturbance, so transplant only when very young. Space bush plants about 24–36 inches apart with 3+ feet between rows — crowding is what feeds powdery mildew — and keep moisture even at roughly 1–1.5 inches a week, mulched to steady it.
Two habits pay off all season. Sow a fresh hill every 3–4 weeks so a young plant is ready to replace one lost to borer or mildew; and harvest at 6–8 inches every day or two, wearing sleeves because the stems and leaves are prickly. Frequent picking is what keeps the plant productive — a fruit left to fully mature signals the plant to slow down.
What goes wrong — and the fixes
Squash vine borer is the top threat: a plant wilts suddenly and you find sawdust-like frass at a hole near the stem base. As a Cucurbita pepo it's the borer's favorite host, so cover young plants with floating row cover until they flower (then remove it for pollination), watch for the adult moths in early summer, and if a plant wilts, slit the stem lengthwise, dig out the larva, and mound moist soil over the wound. A Cucurbita moschata squash makes a more borer-tolerant backup.
Powdery mildew is the other near-certainty — a white coating on late-summer leaves that then yellow and die back. Space for airflow, grow in full sun, avoid wetting the foliage, and treat at first sign with a sulfur or potassium-bicarbonate product; plants often keep bearing through it. Watch too for squash bugs and cucumber beetles (crush the bronze egg clusters; the beetles also spread bacterial wilt), and for small fruit that shrivels at the blossom end — usually poor pollination in heat or from too few bees, fixed by hand-pollinating in the morning. And remember the first flush of flowers is often all male, which is normal.
In the kitchen
Black Beauty is a mild, slightly sweet workhorse rather than a flavor bomb — firm and creamy-white when young. Used small, at 6–8 inches, it sautés, grills, roasts, spiralizes into 'noodles,' or slices raw into salads. Because it's high in water, salt and drain grated zucchini before it goes into fritters, bread, or muffins, or the batter turns soggy.
The glut has answers. Grate and freeze it (blanch first) to bank summer squash for winter baking, and fry the blossoms while you're at it. Even an overgrown marrow isn't wasted: scoop the seedy core and grate it for zucchini bread, or hollow and stuff it to bake marrow-style — it's just no good for a quick sauté. The only real 'wrong' move is treating it as storage: cook or refrigerate it within a few days.
Black Beauty Zucchini summer squash at a glance
Black Beauty Zucchini Summer Squash — at a glance
Type
Zucchini
Grows as
Tall vine (indeterminate)
Days to ripe
63 days after you plant it outside
Color
Green
Fruit size
Medium
Extra fields from seed-catalog listings and university growing guides. Days to ripe and disease resistance shift with your climate and seed source — double-check with your local extension office before you buy.
Watch: growing Black Beauty Zucchini
Black Beauty Zucchini ~ Seed to Harvest · Little Bean's GardenBlack Beauty Zucchini from Transplant to Harvest · Family von Dessauer
Embedded from their creators on YouTube — full credit and views go to the channel.
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Common questions about Black Beauty Zucchini
Why is Black Beauty zucchini so prolific?
It was bred for vigor and it starts cropping in under two months, so a couple of healthy plants keep setting fruit faster than most households can eat them. That's the 'zucchini avalanche.' The practical answer is to plant fewer hills than you think you need — two plants is plenty — and to pick daily, since frequent harvest is also what keeps the plant producing.
How big should I let Black Beauty zucchini get?
Pick at 6–8 inches with glossy skin. That's when the flesh is tender, mild, and fine-grained. Left a few days longer it balloons into a foot-long marrow with watery, pithy flesh, hard seeds, and a tough skin — worse in every way that matters. Check the plant every day or two at peak, because it sizes up fast in heat.
Is Black Beauty a bush or a vine?
A bush. Despite a few catalogs labeling it 'vining,' it's a compact plant about 18–24 inches tall, which is exactly why it suits raised beds and large containers. You don't need a trellis or the sprawling space a true vining squash demands.
Does Black Beauty resist squash vine borer or powdery mildew?
No — it has no bred-in resistance to either. As a Cucurbita pepo it's the vine borer's preferred host, and it has no powdery-mildew resistance, so expect white leaves by late summer. Cover young plants with row cover until flowering for the borer, space plants for airflow against mildew, and consider succession-sowing a backup plant.
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