I recently planted two weeping willows in my back yard. I originally
had them about 55 to 60 ft apart - but my girlfriend insisted they go
closer becaused they looked "odd" so far apart. I tried to explain to
her how big they get, but she ended up talking me into going closer.
They are now 45 ft apart. Is this too close? If you have to guess,
how many years until they are touching? From the below picture, do you
think 45 is far enough? I really only plan on living here another 10
years max - so I figured they couldn't get too out of control by then -
right? Let me know what you think:

http://utseay.smugmug.com/photos/65037495-L.jpg