Shark Fin Melon/Cucurbita Ficifolia fruit aborting

richard_505(6b Victoria BC)July 23, 2013

I planted 3 of these in my garden this year and I'm seeing a lot of the melons abort after being pollinated and growing about 2.5x it's original size.

I've had to cut around 8 of them off because they just stop growing and end up turning brown and going soft on the blossom end.

On the attached picture, the blossom end is discolored brown and dry with a foamy feel while the stem end is white, firm, and 'wet'.

Any idea as to what would cause this? Weather? Lack of nutrients?

The good news is that one didn't abort and is about the size of my fist.

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jean001a(Portland OR 7b)

Well, I don't see nay developing seeds. So likely insufficient pollen grains were present fro successful fertilization. Perhaps also environmental glitch at flowering?

    Bookmark   July 25, 2013 at 3:42PM
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jean001a(Portland OR 7b)

Here's info how to grow it, including suitable temps and more
http://www.pfaf.org/user/Plant.aspx?LatinName=Cucurbita+ficifolia

Here is a link that might be useful: how to grow it

    Bookmark   July 25, 2013 at 3:44PM
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richard_505(6b Victoria BC)

I don't think pollinating is the problem since im using about 3 males (each loaded with pollen) for every female but I'll keep that in mind for the next few weeks. I'm still waiting to see if the 6 small ones will grow but they've been stagnate for a few weeks.

    Bookmark   July 26, 2013 at 2:43PM
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seysonn(8a WA/HZ 1)

I think the melon shown is too young and seeds have not developed. Shark Fin melon is a winter squash, IMO>

    Bookmark   August 1, 2013 at 8:18PM
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