Can I rest my casted leg on the ground?

I crushed my ankle about a month ago and was placed in a cast from my toes to upper thigh. At that time, my doctor said that it is imperative that I don't put any weight on that leg in order for the healing process to start. At my last appointment, my cast was removed, then x rayed. My ankle has started to heel, I was put in another long cast, and was told that in another 2-3 weeks, I could start bearing weight on that leg. My question is: When I am standing up, can I rest my casted leg on the ground? I wouldn't be putting any pressure on that leg. I hope your answer is yes because it tires my to always keep that foot off the ground