Squash
48-52days to harvest
5-8days to germinate
Z3–11USDA zones
Easydifficulty
F1 hybridContainer friendly

Sowing

Direct sow when soil temperature reaches 65°F, or start indoors 2-3 weeks before transplanting. Plant seeds ½ inch deep.

Cultivation

Sun
Full sun (6+ hours)
Water
1-1.5 inches per week, consistent moisture
Soil
Well-drained, fertile soil with organic matter
Soil pH
6.0-7.0
Spacing
24-36 inches
Height
1-3 feet
Season
Warm season

Appearance & flavour

Colour
Dark glossy green
Size
6-7 inches long, 2 inches diameter
Shape
Uniform cylindrical
Flavour
Sweet, mild, and exceptionally tender

In the kitchen

Perfect for fresh eating, grilling, baking, and all zucchini recipes. Excellent sliced raw in salads.

Pests, disease & resistance

Pests
Aphids, cucumber beetles, squash bugs
Diseases
Powdery mildew, bacterial wilt
Resistance
Good resistance to zucchini yellow mosaic virus and watermelon mosaic virus

Planting calendar by USDA zone

ZoneStart indoorsTransplantDirect sowHarvest
1——July – AugustSeptember – August
2——June – AugustSeptember
3——June – JulyAugust – October
4——June – JulyAugust – September
5——May – JuneAugust – September
6——May – JuneJuly – September
7——April – JuneJuly – August
8——April – MayJune – August
9——March – AprilMay – July
10——February – AprilMay – June
11——January – MarchApril – May
12——January – MarchApril – May
13——January – MarchApril – May

Companion planting

8 beneficial pairings indexed for this variety, 3 to avoid.

NasturtiumsActs as trap crop for squash bugs and cucumber beetles, repels aphids
MarigoldsRepels cucumber beetles, squash bugs, and nematodes with strong scent
RadishesDeters squash vine borers and cucumber beetles, breaks up soil
BeansFixes nitrogen in soil, benefits heavy-feeding zucchini
CornProvides vertical structure and shade, part of three sisters planting
CatnipRepels squash bugs, cucumber beetles, and ants effectively
DillAttracts beneficial insects like ladybugs and parasitic wasps
OreganoRepels cucumber beetles and provides ground cover to retain moisture

Avoid

PotatoesCompete for space and nutrients, both are heavy feeders with similar root zones
FennelInhibits growth through allelopathic compounds, stunts development
Aromatic herbs (Sage)Strong oils can inhibit germination and growth of squash plants

Nutrition (per 100 g)

Calories (per 100 g)
21
Protein (g)
2.71
Fat (g)
0.4
Carbohydrate (g)
3.11
Fibre (g)
1.1
Vitamin A (µg)
25
Vitamin C (mg)
34.1
Vitamin B6 (mg)
0.142
Folate (µg)
20
Calcium (mg)
21
Iron (mg)
0.79
Magnesium (mg)
33
Phosphorus (mg)
93
Potassium (mg)
459
Zinc (mg)
0.83
Selenium (µg)
0.3

Where to buy seed and equipment

Some links are affiliate links. If you buy through them we may earn a commission at no extra cost to you.

Growing it? There is a full cultivation guide at the squash growing guide.

Cultivar facts compiled from public horticultural references including USDA GRIN and NC State Extension. Descriptions are original to this catalogue.

DarkGrow forum

Grown Zucchini Partenon?

Post a crop report — day counts, reservoir readings, what worked. Variety-specific logs are the most useful thing on the forum.

Similar varieties

Other squash with a comparable time to harvest, so a season that suits Zucchini Partenon suits these too.

Browse all 60 squash