I am growing courgettes in pots on my patio, and some of them are turning yellow from the flower end. Is this due to the hot dry weather we have had lately or could there be any other reason? We did have success with one.
It can be, but in container, the most likely culprit is a lack of calcium and magnesium. This can be corrected very easily with dolomitic lime. Sometimes these plants can get very hungry for calcium and magnesium, so supplementing will be necessary
Goldish brown spots, curled leaves on the cucumbers
This is Cucumber Leaf Spot.
This article will help you.
https://www.gardeningknowhow.com/edible/vegetables/cucumber/treating-leaf-spot-on-cucumbers.htm
I have saved my buttercup squash seeds for two years now. This year, two of the three sprouted seeds came up yellow, stem and leaves. They look healthy other than the sickly color. Can you tell me what is happening? I need only one plant, so I do plan to remove the yellow sprouts, but this is pretty interesting! Thank you.
Yellow seedlings may be watering issues; too much or too little.
Check soil moisture and make adjustments quickly; they will likely recover if you can correct.
https://www.gardeningknowhow.com/edible/vegetables/squash/tips-for-growing-squash.htm
My acorn squash blossoms bloom and then fall off. Why?
This article will help you.
https://www.gardeningknowhow.com/edible/vegetables/squash/squash-blossoms-falling-off-vine.htm
My neighbor thinks that when blossoms die the yellow squash quit growing so she picks before they have a chance to mature. I know better but can't seem to convince her. HELP!
Well, You need both the male and female blossoms on the plant for successful pollination and fruit formation.
This article explains the difference between these flowers.
https://www.gardeningknowhow.com/edible/vegetables/squash/female-male-squash-blossoms.htm
They have tons of flowers but but do not turn into fruit, also the fruit that's growing dies off.
It sounds like you are seeing the male blossoms; that are generally abundant die off. The female blossoms; there are less-these are the ones that form the fruits.
https://www.gardeningknowhow.com/edible/vegetables/squash/female-male-squash-blossoms.htm
You could have poor pollination or Blossom End Rot issues.
https://www.gardeningknowhow.com/edible/vegetables/squash/pollinate-squash-by-hand.htm
https://www.gardeningknowhow.com/edible/vegetables/squash/squash-blossom-end-rot-causes-and-treatment.htm
I planted squash two months ago and still only get male blossoms. How can I fix this?
You may have a pollination issue.
These articles will help you.
https://www.gardeningknowhow.com/edible/vegetables/squash/female-male-squash-blossoms.htm
https://www.gardeningknowhow.com/edible/vegetables/squash/pollinate-squash-by-hand.htm