my plants are not growing very well, some got yellow leaves, do they need banana peels, Epsom salts or coffee grounds or what else can I do for them?
If you are growing in a container, the plant is totally dependent on fertilizer, one that is meant for vegetables. Banana peels, epsom salt and coffee grounds are recommended by people who don't know the science of soils and nutrient uptake by plants. When they have been looked at in controlled studies, they don't hold up. Banana peels and coffee grounds are great for the compost pile. Adding 1-2 inches of compost annually is beneficial to soil health. If temps are already above 80 F where you are, peas will not do well. They are grown as spring and fall crops when it is cooler. Sometimes yellow leaves are just a sign that older leaves have done their job and are "retiring". (senescence) Write back and post a picture. Give as much information as you can on your current garden practices.
Vines are 4-6 feet tall, tied loosely to a trellis. I have not used any fertilizer on them. It appears they are missing a nutrient or something. I also have a honey-bee hive in the area, so pollination should not be an issue. There are actually very few flowers on these vines; what can the problem be?
Since you haven't fertilized them, and they aren't producing well, I suggest having your soil tested. That will show what nutrients are lacking. You must have plenty of nitrogen since you get plenty of foliage. In the meantime, work in some well rotted compost to enrich the soil if you haven't already.
https://www.gardeningknowhow.com/edible/vegetables/peas/growing-snap-peas.htm
https://www.gardeningknowhow.com/edible/vegetables/peas/how-to-grow-sugar-ann-peas.htm
plants were about 4 inches tall. new top soil used and mulched.
Here's an article that should help:
https://www.gardeningknowhow.com/edible/vegetables/peas/peas-wilting.htm
My sugar snap pea plants are growing tall and producing lots of large, green leaves. My first blossom appeared yesterday and looked great, but today I'm noticing that the blossom petals have closed. One more blossom appered which looks good, and there are a few blossom buds as well. The plant is indoors. Do you know why the first blossom has closed up? Thank you so much!
This happens once the stigma receives pollen. Peas will, soon, follow.
Here is an article for more information on the care of Peas in container:
https://www.gardeningknowhow.com/edible/vegetables/peas/grow-peas-in-containers.htm
My sugar snap peas are about 2 feet tall but no sign of flowers. I had the soil tested last year and made necessary adjustments. I have been gardening for many years and never had this problem. I live in NH
You're not alone -- we've had this question many times. If the plant looks healthy but no flowers, it likely means their is too much nitrogen. Fix it with a phosphorus boost like bone meal.
https://www.gardeningknowhow.com/edible/vegetables/peas/growing-snap-peas.htm
I have three sugar snap pea vines growing indoors over the last 5 months. Within the last week or two, I noticed they’ve been starting to dry up. I did not change anything besides beginning to water with watering bulbs instead of a can. Is there a point at which they die off naturally or is something wrong? They are still growing and producing.
They will do this, naturally, as they start to die off. They have, relatively, short lifespans.
Now, overwatering can lead to infections that will kill them off earlier. This is even more true indoors. Bu sure that you only water them once the soil is dry down to about 2 inches in the container. (This will need to be about halfway down the container if it does not have drainage holes.)
I have never had any good luck with watering bulbs. I find that they tend to overwater. I would recommend watering by hand when the soil dries out some.
Here is an article that will help you to grow peas in container:
https://www.gardeningknowhow.com/edible/vegetables/peas/grow-peas-in-containers.htm
The plants are flowering and I do have peas on them but they are sugar snap peas and they are not sweet at all. What would be the reason?
Snap peas need to be eaten early. Once the peas swell, completely, they will take on a bitter taste, or barely any taste, depending on the cultivar.
Sometimes, adding sulphur to the soil can help. Adding this as potassium sulfate will improve fruit set as well!
One other thing to note is temperature. Peas are a cool season crop, and heat can ruin the flavor. It has been quite warm in my area this week, and if it has been warm in yours, then this could be the reason.
Here is an article that will help you to grow snap peas:
https://www.gardeningknowhow.com/edible/vegetables/peas/growing-snap-peas.htm