Costata Romanesco Heirloom Zucchini Summer Squash
Cucurbita pepo
kyoo-KUHR-bee-tah PEH-poe
Edibles: Fruiting Vegetable
Min. Temp
Very Tender: 38°
A sought-after Italian heirloom grown around Rome for years. The zucchini is grey-green, has fluted edges or ribs. When cut these fluted edges give them a scalloped appearance. The flavor is very rich and nutty. Unique amongst summer squash. Much better taste than hybrids.
Appearance
Summer Foliage
Green
Fall Foliage
Green
Flower Color
Yellow
Blooming Time
Early Summer - Late Summer
Habit
Vining
Height
18–24 in
Spread
36–48 in
Form
Summer Squash
Characteristics
Type
Heirloom
Safety
Edible Parts
Growth Rate
Fast
Traits
High Yields
Tolerance/Resistance
Heat Tolerant, Drought Tolerant
Attracts
Attracts Honeybees & Pollinators
Uses/Placement
Culinary
Optimal Growing Conditions
Sun Exposure
Full Sun: 8-12 hrs
Soil Texture
Sandy
Soil Drainage
Well-drained
Soil Moisture
Average
Soil PH
Slightly Acidic: 6.0-6.5
PH Tolerance
Prefers slightly acidic soil
PH Correction
High pH can reduce nutrient uptake
Soil Amendment(s)
Compost
Fertilizer
Heavy Feeder
Fertilizer Formula
Rooting & Blooming
Fertilizer Timing
Pre-Fruiting
Micronutrients
Calcium (Ca)
Care
Care Level
Moderate
Behavior and Propagation
Spreading
Moderate Spreader
Propagation Method
Monoecious--pollination required
Propagation Licensing
Open propagation permitted
Division Timing
Do Not Divide
Fruit and Pollination
Days to Harvest
50 Days
Fruit Size
Medium
Fruit Characteristics
Mild
Ploidy
Diploid