Electrical conductivity (EC) (mS/cm) for Rosa ‘BAIneon' (Top graph) and Hydrangea macrophylla ‘PIIHM-II' (Bottom graph), respectively, for fertilizer treatments 1.0x rate top dressed (TD) (filled triangles) (EC=1.81-0.08WAP, P=0.05, R²=0.91 and EC= 1.18-0.05WAP, P=0.01, R²=0.97, dotted line), 1.0x rate incorporated throughout (IT) (unfilled squares) (EC= 4.53-0.60WAP+0.02WAP², P=0.04, R²=0.99 and EC= 1.96-0.10WAP, P=0.10, R²=0.80; dashed line), and 0.75x incorporated in the top half only (TH) (filled circles) (not significant and EC=0.70 -0.04WAP, P=0.11, R²=0.80) at 4, 8, 12, and 18 weeks after potting (WAP). Data points are means averaged over lower and high irrigation rates, two substrates with differing physical properties, and four replications (n=16).