I have my vegetable garden on a hillside, which I water every 3 to 4 days, giving all plants roughly the same. It is trellised, so I don't get a huge amount of runoff; but for some unknown reason, the plants at the top of the hill seem to perform poorly. Can you give me a reason for this?
There are three possible causes. The first would be while there is not too much run-off, the water is still running some down the hill. The top of the hill may not be getting penetration of the water into the soil before the water continues down the hill. Another possibility is that the water is leeching the nutrients in the beds higher on the hill and moving them to the lower beds. The third possibility is that the top of the hill gets a harsher light than the bottom and this dries the soil at the top out more quickly.
Is it okay to plant tomatoes, jalapenos, and strawberries in the same planting bed? I'm making a raised bed garden on top of the ground.
As long as the bed does not have a history of plant disease, planting them together is fine.
If I am watering too much, how do I know when to stop watering? Or how much to water? Last year my tomato and bell pepper plants did not get big and the fruit was so small. I am hoping this year to do better.
This article will help you with this:
https://www.gardeningknowhow.com/plant-problems/environmental/plant-leaves-turn-yellow.htm
How do I keep squirrels and rabbits from eating my veggies when a fence or net is not an option?
These articles may help:
https://www.gardeningknowhow.com/plant-problems/pests/how-to-keep-rabbits-out-of-gardens.htm
https://www.gardeningknowhow.com/plant-problems/pests/animals/get-rid-squirrels.htm
Plants look healthy, lots of blooms, but very little fruit.
It could have been weather, but typically when you have an across the board crop failure like that, some element is missing from the soil. I would strongly recommend taking a soil sample to the local extension service and having them test it. A severe micro nutrient deficiency (of which it could be many and only a soil test will tell) could cause this to happen. It could also be too much nitrogen in the soil or a lack of pollinators in the area.
I am new to gardening. I live in Minnesota and started a vegetable garden, potentially a little early. My question is this, is frost the only temperature related threat to plants or can low temperatures like mid 30's be just as damaging if precautions are not taken?
These articles should help:
https://www.gardeningknowhow.com/plant-problems/environmental/frost-how-to-protect-your-plants.htm
https://www.gardeningknowhow.com/plant-problems/environmental/preventing-frost-heave-in-your-garden.htm
https://www.gardeningknowhow.com/plant-problems/environmental/protect-plants-in-freeze.htm
https://www.gardeningknowhow.com/plant-problems/environmental/tips-for-saving-cold-damaged-plants.htm
What is the best way to keep fresh-picked vegetables fresh? I'm fairly new to this, and have been disappointed at how quickly my ripe veggies go soft or turn colors after I have harvested them. How do those store bought ones hold their freshness so long?
This really depends on the vegetable, as some have should be used rather quickly while others can be frozen. The normal way to freeze vegetables from the garden is to chop them up and blanch them, spread them out on a cookie sheet and then freeze them. Once they are frozen, you can put them in storage bags and keep them in the freezer until you use them. For many others, like cucumbers, you can store them for a week or so in the refrigerator but if kept too long, they will no longer be any good. If you find yourself with an abundance of veggies, you can always give them away to family, friends, and neighbors.