Blackjack zucchinis are a prolific and famed variety of zucchini known for their glossy, very dark green fruit. These classic zucchini seeds are easy to grow, making them a popular choice for both beginner and experienced gardeners. The compact plants mature early and are extremely productive.

Choose a sunny spot, keep well-watered, and feed your plants regularly, and you’ll be enjoying delicious Blackjack zucchinis in just 6-8 weeks. Whether you’re grilling them, frying them, tossing them in a salad, or adding them to quiches, their flavour and texture are truly unmatched.

How to Sow Seeds

Method: Sow your Blackjack zucchini seeds 12mm (1/2") deep, directly in their intended final position.
Spacing: Allow 100 cm (3’) between rows and space plants 90 cm (3’) apart – they need plenty of space.
Thinning: Sow three or four seeds in a clump, later thinning them out to the two strongest seedlings.
Growing notes: Prepare the soil well by adding organic material and a complete fertiliser. Keep your zucchinis well-watered as they grow, and harvest regularly when about 15 cm (6”) long to encourage higher yields.For more information, see the complete guide on how to grow zucchini.

Plant Characteristics

Growth habit: Compact
Yield: Prolific
Harvest: Keep your zucchinis well-watered as they grow, and harvest regularly when about 15 cm (6”) long to encourage higher yields.For more information, see the complete guide on how to grow zucchini
Uses: Whether you’re grilling them, frying them, tossing them in a salad, or adding them to quiches, their flavour and texture are truly unmatched