Squash
48-55days to harvest
7-10days to germinate
Z3–11USDA zones
Easydifficulty
F1 hybridContainer friendly

Sowing

Direct sow after soil temperature reaches 65°F, or start indoors 2-3 weeks before last frost. Plant seeds 1 inch deep.

Cultivation

Sun
Full sun (6+ hours)
Water
1-1.5 inches per week, consistent moisture
Soil
Well-drained, fertile soil rich in organic matter
Soil pH
6.0-7.0
Spacing
36-48 inches
Height
1-3 feet
Season
Warm season

Appearance & flavour

Colour
Dark glossy green with light green striping
Size
6-8 inches long, 2 inches diameter
Shape
Cylindrical with straight, uniform fruits
Flavour
Mild, sweet, and tender with fine texture

In the kitchen

Grilling, sautéing, baking, zucchini bread, spiralized noodles, stuffed zucchini, fresh in salads when small

Pests, disease & resistance

Pests
Squash bugs, cucumber beetles, squash vine borers
Diseases
Bacterial wilt, downy mildew, black rot
Resistance
Excellent resistance to powdery mildew, 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 – October
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

9 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, quick harvest before squash spreads
Bush BeansFix nitrogen in soil and don't compete for space with sprawling zucchini vines
CatnipStrongly repels squash bugs, cucumber beetles, and other squash pests
DillAttracts beneficial insects like parasitic wasps that prey on squash pests
CornProvides vertical structure while zucchini shades soil, part of three sisters planting
BorageAttracts pollinators essential for squash fruit production, may improve growth
Aromatic HerbsOregano, thyme, and mint repel various squash pests through strong scents

Avoid

PotatoesCompete for nutrients and may increase risk of blight diseases in moist conditions
BrassicasCabbage, broccoli, and kale compete heavily for nutrients and space
MelonsShare same pests and diseases, compete for space and nutrients, cross-pollination issues

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

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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 Ambassador?

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 Ambassador suits these too.

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