Apple (Malus × domestica Borkh.) trees are not always grown in a favorable soil condition. One of the soil and solution properties that influences apple tree growth and fruit quality is pH due to its effects on nutrient uptake affecting the tree’s performance. However, the use of suitable rootstocks represents a sustainable solution to alleviate site challenges and unfavorable growing conditions. In this study, apple rootstocks were evaluated under field and greenhouse environments for root distribution, growth performance, and fruit quality. Eight rootstocks (G.11, G.41, G.935, G.202, G.214, M.9T337, B.9, and M.26EMLA) were tested in response to a range of soil pH’s (5.0, 6.5 and 8.0) using a pot-in-pot system. In addition, root development and distribution of four of the rootstocks (G 214, G.41, G.890 and M.9) were evaluated in response to the same soil pH’s listed above in a minrhizotron system. While another four rootstocks (G.210, G.214, G.41, G.890) were monitored for root architecture and turnover in response to a range of solution pH’s (5.5, 6.5 and 8.0) in an aeroponics system. The pot study showed that soil pH caused no significant difference in trunk cross-sectional area but soil pH treatment did affect fruit peel nutrient concentration P, Ca, Mg, Fe. S, B, and Zn. TCSA increase was affected by rootstock with the maximum increase with G.935 and the lowest TCSA increase was with B.9. Leaf nutrient analysis showed higher values of K, Ca, Mg, S Fe and Mn at low pH. However, higher P and Zn were found at high pH. However, no significant difference was found in total soluble solids %, fruit’s firmness, number of fruit, bitter-pit incident percentage. The highest fruit per tree was found on G.41 and the lowest bitter pit % was reported in G.935. G.11 had the largest fruit size, weight, and length while G.935 had the best red skin color. All fruit maturity parameters showed a significant difference due to soil pH treatments. However the best values of fruit weight, size, and length were found at high pH. The aeroponics study showed no difference in root architecture parameters among the four Geneva® rootstocks. However, when each rootstock was investigated individually, G.210 was found to have higher root parameters values. The solution pH was found to affect significantly all root parameters measurements. Some parameters showed doubled or tripled improvement at pH 8.0. Results from the minirhizotron experiment showed no significant difference in all root parameters among the four apple rootstocks we evaluated. Among the soil pH’s, significant differences were found in the root count, total root length, and the total root area. At soil pH 5.0, the root count, root length, root volume, and root area were higher than at the other soil pH treatments, while the average root diameter, average root length, average root area, and the average root volume were higher at pH 8.0. Rootstocks evaluation under various soil and solution pHs is important to assist in selecting the best adapted apple rootstocks for non-optimum soil conditions and for providing proper fertilizers recommendations Apple (Malus × domestica Borkh.) trees are not always grown in a favorable soil condition. One of the soil and solution properties that influences apple tree growth and fruit quality is pH due to its effects on nutrient uptake affecting the tree’s performance. However, the use of suitable rootstocks represents a sustainable solution to alleviate site challenges and unfavorable growing conditions. In this study, apple rootstocks were evaluated under field and greenhouse environments for root distribution, growth performance, and fruit quality. Eight rootstocks (G.11, G.41, G.935, G.202, G.214, M.9T337, B.9, and M.26EMLA) were tested in response to a range of soil pH’s (5.0, 6.5 and 8.0) using a pot-in-pot system. In addition, root development and distribution of four of the rootstocks (G 214, G.41, G.890 and M.9) were evaluated in response to the same soil pH’s listed above in a minrhizotron system. While another four rootstocks (G.210, G.214, G.41, G.890) were monitored for root architecture and turnover in response to a range of solution pH’s (5.5, 6.5 and 8.0) in an aeroponics system. The pot study showed that soil pH caused no significant difference in trunk cross-sectional area but soil pH treatment did affect fruit peel nutrient concentration P, Ca, Mg, Fe. S, B, and Zn. TCSA increase was affected by rootstock with the maximum increase with G.935 and the lowest TCSA increase was with B.9. Leaf nutrient analysis showed higher values of K, Ca, Mg, S Fe and Mn at low pH. However, higher P and Zn were found at high pH. However, no significant difference was found in total soluble solids %, fruit’s firmness, number of fruit, bitter-pit incident percentage. The highest fruit per tree was found on G.41 and the lowest bitter pit % was reported in G.935. G.11 had the largest fruit size, weight, and length while G.935 had the best red skin color. All fruit maturity parameters showed a significant difference due to soil pH treatments. However, the best values of fruit weight, size, and length were found at high pH. The aeroponics study showed no difference in root architecture parameters among the four Geneva® rootstocks. However, when each rootstock was investigated individually, G.210 was found to have higher root parameters values. The solution pH was found to affect significantly all root parameters measurements. Some parameters showed doubled or tripled improvement at pH 8.0. Results from the minirhizotron experiment showed no significant difference in all root parameters among the four apple rootstocks we evaluated. Among the soil pH’s, significant differences were found in the root count, total root length, and the total root area. At soil pH 5.0, the root count, root length, root volume, and root area were higher than at the other soil pH treatments, while the average root diameter, average root length, average root area, and the average root volume were higher at pH 8.0. Rootstocks evaluation under various soil and solution pHs is important to assist in selecting the best-adapted apple rootstocks for non-optimum soil conditions and for providing proper fertilizers recommendations.