My plants look great, healthy, but the zucchnni (fruit itself) when I go to pick it up, it is mushy and slimy. It looks fine but as soon as you pick it up, it turns to mush.
Depending on how large the fruit get, it is either blossom end rot or poor pollination. These articles will help:
https://www.gardeningknowhow.com/edible/vegetables/zucchini/zucchini-fruit-fall-off-the-plant-before-they-are-full-grown.htm
https://www.gardeningknowhow.com/edible/vegetables/squash/squash-blossom-end-rot-causes-and-treatment.htm
They come up and grow real nice and bear fruit, then all of a sudden dry up and die. The roots are yellow and mushy. I cannot find what's killing the plants.
They may have had vine borers. This article can help you with that: https://www.gardeningknowhow.com/edible/vegetables/zucchini/vine-borers-zucchini.htm
My leaves on zucchini are huge, but no fruit is making.
If it is a problem of not getting any flowers, I would recommend adding some phosphorus to the soil. This article will help with that: https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/phosphorus-plant-growth.htm
If it is a problem of flowers not producing fruit, you probably have a pollinator problem and you may need to hand pollinate. These articles will help with that: https://www.gardeningknowhow.com/edible/vegetables/squash/pollinate-squash-by-hand.htm
https://www.gardeningknowhow.com/garden-how-to/beneficial/insect-pollination-process.htm
We have beautiful zucchini plants but we are getting any actual zucchini. It seems our male and female blooms are not open at the same time. The result is that we get immature, tiny zucchinis and this is all. Thank you.
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
what could be causing my zucchini to turn yellow and rot on the ends?
They have blossom end rot. This article will help:
https://www.gardeningknowhow.com/edible/vegetables/squash/squash-blossom-end-rot-causes-and-treatment.htm
I have 2 plants, very healthy, but I have had 6 zucchini die at about 4 inches. Help.
It sounds like it might be a pollination issue. These articles will help:
https://www.gardeningknowhow.com/edible/vegetables/squash/squash-fruit-falling-off-the-plant.htm
https://www.gardeningknowhow.com/garden-how-to/beneficial/insect-pollination-process.htm
https://www.gardeningknowhow.com/edible/vegetables/squash/pollinate-squash-by-hand.htm
My zucchini flowers are beautiful, then they die before they can bear the produce! Why?
This is typical behavior for a squash plant. They will produce mostly male (non-fruiting) blossoms early in the season and will gradually start to produce more female blossoms as the season progresses. Give it some time and you will see it start fruiting.
If you are seeing fruit but they are falling off, this article will help:
https://www.gardeningknowhow.com/edible/vegetables/zucchini/zucchini-fruit-fall-off-the-plant-before-they-are-full-grown.htm