Botanical Name: Cucurbita pepo
The most prolific and famed variety with very dark green fruit. Harvest regularly when about 15cm (6in) long to encourage higher yields. Keep well watered and feed regularly.
Mr. Fothergill's Packet Seeds Zucchini Blackjack
Sow 12mm (half-inch) deep, direct in final position. Sow 3 or 4 seeds in clumps, later thinning to the two strongest seedlings. Allow 100cm (3ft) between rows and space plants 90cm (3ft) apart. Keep the plants well watered and prepare the soil well by adding organic material and a complete fertiliser.