Zucchini Partenon
Zucchini Partenon: 48-52 days to harvest, 5-8 days to germinate, 24-36 inches between plants, pH 6.0-7.0, hardy in zones 3-11. Fruit runs to about 6-7 inches long, 2 inches diameter. Give it full sun (6+ hours) and 1-1.5 inches per week, consistent moisture water. It will crop in a container. Because this is a hybrid, seed saved from it will not repeat the parent — plan on fresh seed each year.

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
| Zone | Start indoors | Transplant | Direct sow | Harvest |
|---|---|---|---|---|
| 1 | — | — | July – August | September – August |
| 2 | — | — | June – August | September |
| 3 | — | — | June – July | August – October |
| 4 | — | — | June – July | August – September |
| 5 | — | — | May – June | August – September |
| 6 | — | — | May – June | July – September |
| 7 | — | — | April – June | July – August |
| 8 | — | — | April – May | June – August |
| 9 | — | — | March – April | May – July |
| 10 | — | — | February – April | May – June |
| 11 | — | — | January – March | April – May |
| 12 | — | — | January – March | April – May |
| 13 | — | — | January – March | April – May |
Companion planting
8 beneficial pairings indexed for this variety, 3 to avoid.
Avoid
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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Cultivar facts compiled from public horticultural references including USDA GRIN and NC State Extension. Descriptions are original to this catalogue.
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.
- Zucchini Ambassador 48 days
- Yellow Straightneck Zucchini 48 days
- Yellow Crookneck Summer Squash 50 days
- Yellow Summer Squash (Early Prolific Straightneck) 50 days
- Zucchini Costata Romanesco 50 days
- Straightneck Yellow Summer Squash 50 days