VegetableZucchini
Round Zucchini
Round Squash
Round Zucchini is a compact summer squash that defies the long, slender shape most gardeners expect. This bush-type cultivar produces distinctive spherical fruits with smooth, dark green skin that are harvested at just 3 to 4 inches in diameter, roughly 50 to 60 days after planting. The plants thrive in full sun across zones 3 through 13, staying compact at 24 to 30 inches tall, making them surprisingly well-suited to small gardens and containers. What really sets them apart is their explosive productivity, combined with a remarkably fast fruit development: flowers become harvestable squash in just 7 to 8 days.
Photo © True Leaf Market
Growing Conditions
USDA Zone
3-13
Sunlight
Full Sun
Water
Moderate
Soil
Well-drained, Fertile Loam With Organic Matter
Preferred Temp70-95°F
Growth Stats
30 in
Height
—
Width
36 in
Spacing
50–60
Days to Harvest
PeriodAnnual
TypeVine, Forb/herb
Plant Profile
Sunlight
Full Sun
Water
Moderate
Zones
3-13
Size
30in H x ?in W
Growth
Annual
Care
High
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Highlights
The spherical shape alone makes these zucchini memorable in the garden and kitchen, but what gardeners rave about is the sheer abundance. These plants are prolific producers, turning out round fruits continuously throughout the season, which means you'll genuinely need to share the harvest with neighbors. The mild, tender flesh and mildly sweet flavor adapt beautifully to any preparation, from stuffing and grilling to roasting whole. Because the fruits are harvested young at 3 to 4 inches, they're tender and never develop the watery texture of oversized zucchini, making every harvest genuinely delicious.
Common Uses
Round Zucchini excels in the kitchen precisely because of its size and shape. The hollow interior and tender flesh make these fruits exceptional for stuffing with rice, cheese, herbs, or meat. They're equally at home on the grill, where their compact form cooks evenly and develops light char marks, or roasted whole with olive oil and seasonings. They work beautifully in stir-fries, sliced into rounds, and the dense, mild flavor means they pair well with virtually any sauce or seasoning without overwhelming other ingredients.
Growing Timeline
First Bloom
Early Summer
First Harvest
Mid-summer
Last Harvest
Late Summer
Care Instructions
Transplant Outdoors
Transplant hardened-off seedlings outdoors after the last spring frost has passed and soil temperature has reached at least 60°F, ideally 70°F or warmer. Space plants 36 inches apart in full sun.
Direct Sow
Direct sow seeds in warm soil after all frost danger has passed and soil temperature reaches 70°F or higher. Plant seeds about 1 inch deep, spacing them 36 inches apart.
Harvesting
Harvest Round Zucchini when fruits reach 3 to 4 inches in diameter; at this size they have tender flesh and mild flavor. Pick fruits regularly, every few days during peak production, as consistent harvesting encourages the plant to continue producing more flowers and fruits. Use a sharp knife or pruners to cut fruits cleanly from the vine, leaving a short stem attached. The fruits develop from flower to full size in approximately 7 to 8 days, so regular monitoring will ensure you catch them at their tender best before they become oversized.
Growing Calendar
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Companion Planting
Ecology & Traits
Edible
Scientific Classification
Cucurbita pepo L.
Family
Cucurbitaceae
Genus
Cucurbita
Duration
Annual
Growth Habit
Bush
Native Status
L48 (NI)PR (I)CAN (W)