My squash are producing but are not getting very big. Some plants have 8-10 squash but they are all very small. How long does it take for them to be picked once you see the squash forming?
Generally, this is due to poor pollination. Squash will produce fruits even if no pollination has occurred, but they will only grow 1-2 inches and then die. This can easily be corrected by growing bright-colored flowers (like marigolds or zinnias) close by to entice bees to the area. You could also hand pollinate them. Here's an article that may be helpful: https://www.gardeningknowhow.com/edible/vegetables/squash/pollinate-squash-by-hand.htm
Too much fruit set can also lead to small fruit size as well. In addition, a lack of water can decrease the size of your squash.
Our plants are big and beautiful, but they have no blossoms. They are about 3-4 weeks old. We live in the Houston, Tx. area (Zone 9). Is this a problem? How long should it be before they start blooming? We can find no signs of disease. They all look healthy.
This is generally due to poor pollination or unsuitable growing conditions.
I've heard that cutting off the runners is best for producing sweet squash. Should I?
It is true that pinching off the tips of squash runners (after fruits have started to form) will allow the plants to spend more energy producing squash.
I have small black spots on my squash plants. They also have yellow leaves and look like they start to die from the base up. They have a kind of a powder on the leaves also.
This sounds like Septoria leaf spot. This article will help you:
With tomatoes I prune leaves, does that work with squash?
You can prune some. But try to remove only growing tips so as not to leave large wounds to draw squash pests and diseases.
I planted squash about one month ago and discovered yesterday that my squash plants have turned yellow. This happened after they bloomed, but have not produced anything. The whole plant is yellow; what's wrong?
This article will help:
My squash and cucumber plants are thriving and growing larger every day with multiple blooms, but the actual squash will only grow to about two inches and then starts turning brown on the tips before dying. My cucumbers only get to about an inch and then start to shrivel up and die. Everything else in the garden is doing great. What could be the problem?
It is a pollination problem. When the flowers are not pollinated, the plant "aborts" the fruit because it will not make seeds. These articles will help: https://www.gardeningknowhow.com/garden-how-to/beneficial/insect-pollination-process.htm