The seed for this squash came from a pumpkin without a sticker or any type of indication of the variety. It was a 2 or 3 lb squash. Possible varieties it could be: futsu, kikuza, yokohama, kogiku.

Kikuza -Easy to grow vertically.

Yokohama - Very rare and difficult to find you will appreciate its sweet taste resembling that of sweet potato and its red-orange flesh. Each plant produces 2 squash. They will be green and quietly change color to go cream to complete their ripening yellow. For its cultivation, sow in a bucket, at 20 degrees Celsius, 3 to 4 weeks before transplanting to the garden (after all risks of freezing on the ground have passed). Spray the mound in planting holes filled with compost prepared 2 weeks in advance. You can also sow directly in the garden (on warm ground) in full sun on hummocks amended with compost when the risk of freezing has passed. Maturity: 100 days.

Black Futsu
Small flavourful squash has dense orange flesh with a hint of hazelnut. These little squash were popular in Japan during the Edo period (1603-1867) and are making something of a comeback today. Dark green, deeply ridged fruit turn a deep burnt orange colour in storage. Perfect size for two people for dinner. We like to make gnocchi or ravioli with this one. Rare.
Available Sizes:Packet, Bulk ADays to Maturity:105 days. hawthornfarm

Futtsu Black Early
C. moschata. This is an old Japanese heirloom, cultivated for hundreds of years. Futtsu Black Early squash forms decorative and tasteful pumpkin-like fruits of medium size. A typical fruit from this unusual and highly prized squash weighs around 1.5kg (3 lbs). The fruits start out round and dark green — almost black — with deep ribs and some wrinkles. As they mature the fruits turn dusky grey-brown, and the nutty flavour and sweetness really improves. Cutting into this remarkable fruit releases a strong scent of cantaloupe. The squash will keep for months in storage. Plants grow 80-140cm (32-55") wide, so provide lots of space as well as fertile soil. The fruits are eminently decorative for fall displays.
Matures in 100-120 days. (Open-pollinated seeds)
Quick Facts: Japanese heirloom. Sweet, nutty flavour. Deeply ribbed fruits. Matures in 100-120 days. Open pollinated seeds. westcoastseeds

The squash picked fully ripe - with bloom developed - store up to spring. The ones picked not so ripe and ripened in storage go bad at the stem end in long storage so need to be used by (American) Thanksgiving.