Plant Database / Zucchini / Blackjack care

Zucchini 'Blackjack'

Cucurbita pepo var. cylindrica

2 plantings
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3 stashed

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Blackjack is a popular variety of Zucchini, which belongs to the Cucurbita genus (Cucurbita pepo var. cylindrica 'Blackjack'). Blackjack is a heirloom variety.

Black Zucchini features a very tender, creamy white, flavorful flesh with near black skin. Compact, bushlike growth makes it great for small gardens. Can be harvested very small for baby zucchini. Very early. 44

Blackjack grows as an Annual and is a Vegetable. Being an Annual, it tends to grow best over the course of a single year. Blackjack is known for its Forb habit and growing to a height of approximately 90.0 cm (2.93 feet). This variety tends to bloom in early summer.

Italy is believed to be where Blackjack originates from.

As Blackjack Zucchini is a low maintanence plant, it is great for beginner gardeners and those that like gardens that don't need much overseeing.

This plant info is provided by the myfolia gardener's wiki. All details about Zucchini 'Blackjack' have been kindly provided by our members.

How to grow Zucchini 'Blackjack'

Full Sun
+
Medium

Plant in a location that enjoys full sun and remember to water moderately. Keep in mind when planting that Blackjack is thought of as tender, so remember to wait until your soil is warm and the night time temperature is well above freezing before moving outside. Use USDA Hardiness Zone 3 - 12 as your guideline for the appropriate climate for this plant. Ensure your soil has a ph of between 5.6 and 7.5 as Blackjack is a weakly acidic soil - weakly alkaline soil loving plant.

Growing Blackjack from seed

Try to aim for a seed spacing of at least 2.93 feet (90.0 cm) and sow at a depth of around 0.99 inches (2.54 cm). Soil temperature should be kept higher than 16°C / 61°F to ensure good germination.

By our calculations, you should look at sowing Blackjack about 42 days before your last frost date.

Transplanting Blackjack

Ensure that temperatures are mild and all chance of frost has passed before planting out, as Blackjack is a tender plant.

By our calculations, you should look at planting out Blackjack about 14 days after your last frost date.

Harvesting Blackjack

This variety tends to be ready for harvesting by early summer.