I hand-pollinated a butternut squash and I am curious whether they grow/mature as fast as a zucchini?

2 Answers 2


I would say it takes a couple of months for them to fully mature and develop their hard skin. Much more slowly than zucchinis (or courgettes as we call them in the UK). Once mature they keep well in a cool dark storage location.

I intend to leave most of mine until the plants wither and then I'll go round and collect all the squashes. This is in Cambridgeshire, UK and YMMV in another climate.

  • Wow, are you sure it's a few months after pollination and not planting? I've seen 100 days mentioned online, but it seems to be seed - fruit time, not pollination - fruit time?
    – Vimal
    Sep 12, 2019 at 13:55
  • 1
    I expect there's a huge range of times depending on the variety of squash and the climate. The plants grow very quickly under favourable germination so maybe like 50 days from germination to pollination + 50 days to harvest doesn't sound unreasonable. But feel free to harvest them as soon as they look good to eat. My key point is (in my experience) squash don't get over-ripe like zucchinis/courgettes do (when they turn into giant, bland marrows). Sep 13, 2019 at 12:50

Not much is as fast as zucchini. Butter nut is a "winter" squash and grows much longer , developing a tough skin.

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