How to Grow Black Beauty Zucchini
Cucurbita pepo 'Black Beauty'
Black Beauty Zucchini is a popular warm-season squash variety prized for its reliable yield and ease of growth. Gardeners value this heirloom cultivar for its vigorous production in full sun and moderate resistance to common diseases.
📷 Wikimedia CommonsStarting Black Beauty Zucchini: indoors or direct sow?
🌾 Sow directly in the garden — Black Beauty Zucchini is not usually started indoors.
Do not start indoors; sow seeds directly in the garden only after all danger of frost has passed and soil temperatures are warm.
Soil, care & harvest
Prepare loose, well-draining soil with a pH between 6.0 and 7.5. As a warm-season crop, you must wait until after the last spring frost when the ground is warm before sowing directly outdoors or transplanting seedlings. Plant seeds 1 to 2 inches deep, where they typically germinate within 7 to 10 days.
Space plants 36 to 48 inches apart to allow room for sprawling vines. Water consistently with 1 to 2 inches per week at the soil level, avoiding wetting the leaves. Apply mulch around the base to retain moisture and feed regularly to support heavy fruit production throughout the season.
Watch for squash bugs, cucumber beetles, vine borers, and aphids; use row covers or insecticidal soap early. Prevent powdery mildew and downy mildew by ensuring good air circulation. Harvest zucchini fruits when they reach the desired size, usually 90 to 100 days after sowing.
When to Plant Black Beauty Zucchini
Planting windows vary by USDA hardiness zone. Look up yours by ZIP code.
| Zone | Start Indoors | Direct Sow | Harvest |
|---|---|---|---|
| Zone 1 | — | July – August | November – August |
| Zone 2 | — | June – August | October – September |
| Zone 3 | — | June – July | August – October |
| Zone 4 | — | June – July | August – October |
| Zone 5 | — | May – June | August – September |
| Zone 6 | — | May – June | July – September |
| Zone 7 | — | April – June | July – August |
| Zone 8 | — | April – May | June – August |
| Zone 9 | — | March – April | May – July |
| Zone 10 | — | February – April | May – June |
| Zone 11 | — | January – March | May – July |
| Zone 12 | — | January – March | May – July |
| Zone 13 | — | January – March | May – July |
Companion Plants for Black Beauty Zucchini
✓ Good companions
Fix nitrogen in soil for heavy-feeding zucchini, can climb zucchini's sturdy stems
Strongly repels squash bugs, cucumber beetles, and aphids
Provides vertical structure and partial shade, part of traditional Three Sisters planting
Attracts beneficial insects like parasitic wasps that control squash pests
Benefits from zucchini's shade, efficient use of garden space as ground cover
Deters squash bugs, aphids, and nematodes with their strong scent and root compounds
Repels squash bugs, cucumber beetles, and aphids while attracting beneficial predatory insects
Repels squash vine borers and cucumber beetles, harvest before zucchini spreads
✗ Keep away from
Sage, rosemary, and other strong herbs may inhibit zucchini growth and development
Both are heavy feeders competing for nutrients, potatoes may stunt squash growth
Cross-pollination can affect fruit quality, compete for space and nutrients
Nutrition Facts
Per 100g serving (USDA FoodData Central)
