I am looking for recommendations for a weeping red dissectum maple for my yard. I have a small terrace between a low angle 3' rock wall and a 2' rock wall above which is our vegetable garden. I would like to plant a maple in that terrace that will drape and/or lean out over the lower wall but not grow more than 4-5 high and shade out the vegetable garden. Because of this size constraint it ideally would be slow growing since I would rather not have to prune it agressively to keep it small. It will receive receive full sun in the summer between the hours of 9 and 3. I recently planted an orangeola elsewhere in the yard and have considered moving it, but I am concerned that that cultivar is too vigorous. I also have a red dragon which I absolutely love, but I don't want to move it. This tree should provide a nice contrast with the salal that grows in part of the lower wall and the foliage of the nearby star magnolia. Please let me know what you suggest. Thanks!