Outplanting performance of 1-year-old narrow leaved ash stocks (rooted cuttings and seedlings) grouped into three height categories (large, medium and small) were examined in a bottomland site with heavy clay soils. Stock type and stock size factors were not a significant predictor of survival of seedlings and rooted cuttings at the end of the first year in the field. The overall first-year outplanting survival of the 1+0 seedlings and rooted cuttings was 100% for all treatments. Stock type significantly affected first year diameter and height growth rate after planting and both diameter and height growth were higher in rooted cuttings (4.5 mm and 51.6 cm, respectively) than seedlings (2.8 mm and 27.0 cm, respectively) average for three stock sizes. Stock sizes had no significant affect on seedling diameter and shoot growth in both stock types. Large size rooted cutting-propagated narrow-leaved ash can provide significant advantages on seedlings and small size rooted cuttings on bottomland sites.