Young golden willow tree Help!? I have a yound golden weeping willow tree we just bought this...

I have a yound golden weeping willow tree we just bought this Spring, it be doing great, leaves all green. It's about 12 ft towering & is in a giant pot with drainage (this autume we're planting it upstate). All of a sudden it's droped almost adjectives of it's leaves! Since it hasn't rained in a month we thought the sun be frying it. But we water it every day, & the plant nursery said perchance too much water. We moved it in a shady place within case it's the sun.

What do you think is bothering my tree? It's bug free so it's not that. Do consider it's the heat? Please help!
Answers:    what color is the pot?. if it's shady, I'd suggest that the pot is heating up too much in the sun and the soil is too thaw. put some other pots of leafy tall plants around it to shade it if you think that might be a problem.. also, be sure that the pot's drainage is worthy. but not TOO good!... the water have to stay around the roots long enuff for the roots to absorb it!... if the pot is filled next to roots, that cannot happen. or if it's ever gone dry, the soil can pull away from the sides of the pot and any dampen added then, will just flow down the inside of the pot and not soak into the root bubble.. one other thing. you've had it since spring. and enjoy been watering... have you feed it at all?. all the watering have prob removed anything 'edible' over the last months... a light nurture now and another in a few weeks might turn it around...

that's a lovely tree.. hope it recover for you.
Treat the root zone with Epsom salts, which contains a sulfur compound. It give bugs a hot foot. Be sure the pot is draining. Drill some holes to assure that. We had a root bound maple that behaved inn a similar comportment. Did you add fertilizer in the Spring? Don't do it too behind schedule in the season. http://www.gardenguides.com/plants/find-... try this site it may help a bit.