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I tried to grow pole beans without success. I germinate the seed indoor and when they are a little bigger, when the tentacles started growing, I move them outdoors. But the problem is they can not stand the sun! Pretty soon the sun dried the leaves and they are dead. I even cover them with gallon-size water bottles then cover the bottle with a 70% shade clothes, they still got fried by the sun.
Plant the seeds in the garden where you want them. There is no reason to start them indoors. Beans are very fast growers and do not need to be transplanted.
It could possibly be bacterial, or caused by insects or nematodes, rather than the sun. Those things can turn bean leaves brown.
If it is the sun, how often are you watering them? Is the soil moist, or dry?
Oh I water them at least once a day, if not twice, so it's not for the lack of water. They grew vigorously indoor but once out in the sun, it's like facing death rays.
Plant the seeds in the garden where you want them. There is no reason to start them indoors. Beans are very fast growers and do not need to be transplanted.
I am going to try this. I sowed seeds outdoors for Bush beans and 4 of them sprouted (out of 10). They struggled for awhile but then perked up and growing healthy.
I tried to grow pole beans without success. I germinate the seed indoor and when they are a little bigger, when the tentacles started growing, I move them outdoors. But the problem is they can not stand the sun! Pretty soon the sun dried the leaves and they are dead. I even cover them with gallon-size water bottles then cover the bottle with a 70% shade clothes, they still got fried by the sun.
Any suggestions?
Plant the beans outside and let them germinate there. Do NOT cover them with water bottles, that just fries them even worse, it's like putting something under a magnifying glass under the full sun, you steam-cook it just like steaming something inside an oven.
You're on the west coast aren't you? Keep in mind that UV rays are getting more and more intense on the west coast with each passing year and are having a more damaging effect on many types of plants and trees now that never used to have a problem with full sun in the past.
As an experiment you could also try planting some beans in part sun/part shade where you are and see what happens.
Last year I planted a bunch of different types of runner beans in early spring in several locations and the ones that were planted in full sun got UV burned and didn't grow well at all and they died without producing anything. But the ones that were in dappled part sun/part shade all day kept on growing longer and longer along the fence lines and continued producing flowers and beans until the end of November. The bean plants then died back by the 3rd week in December when we were only getting 5 - 6 hours daily of sunlight by then.
Sounds like you moved them all at once from gentle indoor light to harsh outdoor light.
When moving plants to brighter light, you have to do it gradually, increasing the light levels over the course of several days. So start in shade, move to filtered sun for a couple days at least, then to a sunnier spot...
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