Landscape archtect vs Landscape designer

I need someone to make me a design for my garden so that it looks like a "designed" wild space instead of a pot ghetto. The ghetto exists because I'm too scared of committing again to putting the plants a particular place and then it doesn't look like anything. What is the difference between a landscape designer and a landscape architect? I have all the components of a beautiful butterfly garden and wildlife refuge- they just need to be arranged. Do I need a Landscape architect or a Landscape designer? I read the legal descriptions but they did not seem to apply to regular homes and they did not seem to be different. I've looked locally w/o success. They either don't know anything about butterfly gardening or they only do more formal shaped gardens.
I'm thinking of hiring this person.....

Interested in a new look for your yard?
Landscape Design will Save you Money in the Long Run!
For $95 per hour, landscape designer and co-owner, Jody Walthall, will consult with you at your home. He will give advice, draw to-scale drawings that you can implement on your own, or he can provide an estimate for our landscaping services. Jody has 28 years of landscape design experience and brings a unique perspective to his designs with his interest and degree in Wildlife Ecology. Artist and designer, Brian Bryson is also available for consultations concerning water features or fountains. Call either at 386-8882. Remember, we get real busy in the spring, so call early!
Jody Walthall, landscape designer and co-owner
28 years of experience
http://members.tripod.com/~arguelles/NativeNurseriesNews1.html

What else do oi need to know/ask?