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Cocozelle Italian Heirloom Zucchini

Cucurbita pepo 'Cocozelle'

An Italian heirloom dating back to the 1890s, this distinctive zucchini stands out with its beautiful striped pattern and superior flavor that puts modern varieties to shame. The dark green fruits with light green stripes have incredibly tender skin when young and dense, flavorful flesh that holds up beautifully in cooking. This variety embodies the authentic taste of traditional Italian cooking.

Harvest

55-65d

Days to harvest

📅

Sun

White-Tailed Deer

☀️

Zones

3–11

USDA hardiness

🗺️

Height

1-3 feet

📏

Planting Timeline

Zone:

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Direct Sow

Harvest

Direct Sow

Harvest

Showing dates for Cocozelle Italian Heirloom Zucchini in USDA Zone 7

All Zone 7 squash →

Zone Map

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Cocozelle Italian Heirloom Zucchini · Zones 3–11

What grows well in Zone 7? →

Growing Details

Difficulty

Easy

Spacing36-48 inches

SoilRich, well-drained soil with plenty of compost

pH6.0-7.0

Water1-1.5 inches per week, consistent moisture

SeasonWarm season

FlavorRich, nutty, and sweet with firm, dense texture

ColorDark green with light green to cream colored stripes

Size6-8 inches long, 2-3 inches diameter

Zone-by-Zone Planting Calendar

Zone	Indoor Start	Transplant	Direct Sow	Harvest
Zone 3	—	—	June – July	September – October
Zone 4	—	—	June – July	August – October
Zone 5	—	—	May – June	August – September
Zone 6	—	—	May – June	August – September
Zone 7	—	—	April – June	July – September
Zone 8	—	—	April – May	July – August
Zone 9	—	—	March – April	June – July
Zone 10	—	—	February – April	May – July

Complete Growing Guide

Light: White-Tailed Deer. Soil: High Organic Matter, Loam (Silt). Soil pH: Neutral (6.0-8.0). Drainage: Good Drainage, Moist. Height: 1 ft. 0 in. - 3 ft. 0 in.. Spread: 2 ft. 0 in. - 25 ft. 0 in.. Spacing: 12 inches-3 feet. Growth rate: Rapid. Maintenance: var. CylindricaZucchini Squash, var. Cylindrica. Propagation: Seed. Regions: Coastal, Mountains, Piedmont.

Harvesting

A type of berry called a pepo that has a hard rind. Fruits may be long or round, large or small, smooth or warty– some have edible flesh and some are too hard or insipid to eat, though the seeds of all are edible. Has a harder, thicker stem compared to other species.

Color: Black, Cream/Tan, Gold/Yellow, Green, Orange, Pink, Red/Burgundy, Variegated, White. Type: Berry. Length: > 3 inches. Width: > 3 inches.

Garden value: Edible, Showy

Harvest time: Fall

Bloom time: Summer

Storage & Preservation

Fresh Cocozelle keeps best stored unwashed in the refrigerator's crisper drawer, where they'll maintain quality for 4-7 days. For counter storage, keep them in a cool, dry place for 2-3 days maximum. The tender skin of this heirloom variety makes it more perishable than modern thick-skinned zucchini.

For preservation, slice and blanch Cocozelle for 2 minutes before freezing in airtight containers—the dense flesh holds up better than most zucchini varieties. Grate and freeze in measured portions for baking projects, or slice and dehydrate at 125°F for 8-12 hours to make vegetable chips. The firm texture and rich flavor also make Cocozelle excellent for pressure canning in mixed vegetable recipes or pickling in traditional Italian giardiniera-style preserves.

History & Origin

Origin: North America

Advantages

+Fast-growing

Companion Plants

Plant Together

Nasturtiums

Acts as trap crop for squash bugs and cucumber beetles, repels aphids

Marigolds

Deters squash bugs, cucumber beetles, and nematodes with strong scent

Radishes

Repels squash vine borers and cucumber beetles, harvested before squash spreads

Beans

Fix nitrogen in soil to benefit heavy-feeding squash plants

Corn

Provides vertical structure and shade, part of traditional Three Sisters planting

Catnip

Strong natural repellent against squash bugs and cucumber beetles

Dill

Attracts beneficial insects that prey on squash pests like aphids

Borage

Attracts pollinators essential for squash fruit production, may improve growth

Keep Apart

Black Walnut

Produces juglone toxin that inhibits growth and can kill squash plants

Potatoes

Compete for similar nutrients and space, both are heavy feeders

Fennel

Inhibits growth of squash through allelopathic compounds

Nutrition Facts

Calories

21kcal(1%)

Protein

2.71g(5%)

Fiber

1.1g(4%)

Carbs

3.11g(1%)

Fat

0.4g(1%)

Vitamin C

34.1mg(38%)

Vitamin A

25mcg(3%)

Iron

0.79mg(4%)

Calcium

21mg(2%)

Potassium

459mg(10%)

Per 100g serving. % Daily Value based on 2,000 calorie diet. Source: USDA FoodData Central (FDC #168565)

Pests & Disease Resistance

Resistance

Moderate resistance typical of heirloom varieties

Common Pests

Squash bugs, cucumber beetles, aphids, vine borers

Diseases

Powdery mildew, downy mildew, bacterial wilt

Frequently Asked Questions

How long does Cocozelle Italian heirloom zucchini take to grow?▼

Cocozelle typically matures in 55-65 days from planting. You'll see first flowers around 45-50 days, with harvestable fruits following about 7-10 days later. The compact growth habit means it reaches maturity slightly faster than sprawling summer squash varieties, making it excellent for shorter growing seasons.

Is Cocozelle zucchini good for beginners?▼

Yes, Cocozelle is excellent for beginning gardeners. Despite being an heirloom, it's quite forgiving and produces reliably with basic care. The main requirement is consistent watering and harvesting every 1-2 days during production. Its compact size also makes it manageable for small gardens and easier to monitor than sprawling varieties.

Can you grow Cocozelle zucchini in containers?▼

Absolutely! Cocozelle's compact bush habit makes it ideal for container growing. Use a container at least 20 gallons with drainage holes, and provide full sun and consistent moisture. The smaller plant size produces excellent yields in containers, though you may need to hand-pollinate if growing on balconies with limited bee access.

What does Cocozelle zucchini taste like compared to regular zucchini?▼

Cocozelle has a distinctly richer, nuttier flavor with subtle sweetness that regular grocery store zucchini lacks. The flesh is denser and holds its texture when cooked, rather than becoming watery. Many gardeners describe it as having the authentic Italian zucchini flavor that makes traditional recipes truly shine.

When should I plant Cocozelle zucchini seeds?▼

Plant Cocozelle after your last frost date when soil temperature reaches 65°F consistently. In zones 3-5, start indoors 2-3 weeks before transplanting for a longer harvest season. In zones 6-9, direct sow from late spring through mid-summer for successive plantings. Avoid planting in cold soil as seeds will rot.

Cocozelle vs regular zucchini - what's the difference?▼

Cocozelle offers superior flavor, beautiful striped appearance, and denser flesh compared to modern zucchini varieties. However, it has thinner skin that's more prone to damage, shorter storage life, and requires more frequent harvesting. The trade-off is worthwhile for gardeners prioritizing taste and visual appeal over shipping durability.