Female Squash Blossom

My zucchini female blossoms will not open. I check them at all hours of morning. The male blossoms open just fine. I have tried coffee grounds and eggshells (tea). I have also put the grounds and eggshells around plants. This makes the male blossoms bloom even more, but the squash get about 4 inches long. The blossoms won’t open and the fruit shrivels and rots. They are planted in a waist high planter that is screened to keep out insects. What may be causing this? No insecticdes are used.

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1 Comment To "Female Squash Blossom"

#1 Comment By Nikki On 08/08/2011 @ 5:35 am

The humidity may be the cause of this. You can gently tear the female blossoms open (when they look to be a size they should open) and hand pollinate them. This article will help with hand pollinating them:
https://www.gardeningknowhow.com/edible/vegetables/squash/pollinate-squash-by-hand.htm ^[1]

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