Depends on your will power and reasons for quitting. I took a little tolerance break of about three weeks this summer, and it was definitely tempting to smell the ladies... but honestly quitting a daily habit is going to be hard regardless.
This and a couple other previous posts bring up a great point. Most stoners will argue that weed isn't addictive. Psychology will argue that tooth and nail, as will I. Let me state my piece before the trolls decide to flame me.
What does every cigarette smoker say? "I can quit if I wanted to, I just don't want to. I like blah blah blah. I enjoy blah blah blah."
Now, what does every daily weed smoker say? "I can quit if I wanted to, I just don't want to. I like blah blah blah. I enjoy blah blah blah."
Further, what does every daily cocaine user say? "I can quit if I wanted to, I just don't want to. I like blah blah blah. I enjoy blah blah blah."
On and on, with the two exceptions of alcoholics and heroin addicts where each compound develops a physical dependency and the withdrawals can kill the addict.
The withdrawals from cannabis can be significant. On the lighter end appetite is non-existent, insomnia is strong, higher anxiety than normal. The more severe is depression, significant appetite disruption, impotence, panic attacks, irritability, loss of focus, etc.
Cannabis is addictive as anything else.
Growing can help focus some of those negative effects and give one the opportunity to center their mind without necessarily indulging. Or, one could go off the deep end (like i have) and expand into other plant families on top of cannabis. Case in point, I am now growing various restricted cacti, bromeliads, succulents, trees, I run a full garden with 15+ vegetables every summer, 20+ different herbs, etc. Cannabis is a gateway drug in more ways than one -- growing it even more so. When one approaches the prospect of reducing or quitting their intake, it's important to replace that habit with something equally fulfilling, even if it means growing beautiful bouquets to turn around and give the fruits of your labor to people more in need.