Costata Romanesco
Summer Squash · Zucchini
Heirloom
Cucurbita pepo
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Cucurbitaceae (Gourd family) · Genus: Cucurbita
Characteristics
Color
GreenMulti-Color
Flavor
NuttyRich / ComplexSweet
Growth Habit
Bush
Intended Use
Fresh / SaladStuffing
Shape
Irregular / Ribbed
Texture
FirmThin-Skinned
About the Plant
Life Cycle
Annual
❄
Hardiness
Warm-Season/Very Tender
☀
Exposure
Full Sun
💧
Moisture
Evenly Moist but Well Drained
🌍
Origin
Italy
🌱
Germination
5–14 days
at 60–100 °F
⏳
Days to Maturity
52–60 days
Plant Height
2–3 ft
Mature Spread
Up to 4 ft
Fruit Size
6–8 in
How to Plant
🏠
Start Indoors
0-2 Weeks Before Last Frost
Transplant
2-4 Weeks After Last Frost
🌸
Direct Sow (Spring)
2-4 Weeks After Last Frost
🍂
Direct Sow (Fall)
10-12 Weeks Before First Frost
Planting Depth
1/2–1 in
Seed Spacing
6–36 in
Row Spacing
24–48 in
Thin To
24–36 in
⛰
Plant in Hills
Yes
🌡
Optimal Soil Temp
70–95 °F
🌡
Soil Temp
60–100 °F
🌡
Air Temp
32–90 °F
When to Plant in Your Area
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