Abstract: In order to investigate the effects of shading and fertilization on the growth and carbohydrate content of Heptacodium miconioides cuttings after field planting, two-year-old rooted cutting were used as the experimental material. A two-factor completely randomized block design was adopted, with 2 light environments and 3 fertilizer treatments applied. The study examined the effects of different treatments on the photosynthetic pigments, photosynthetic characteristics, chlorophyll fluorescence parameters, non-structural carbohydrates and growth of the transplanted cuttings. The results showed that the net photosynthetic rate (P_n), minimum fluorescence under light (F_o'), effective photochemical quantum yield of PSII (F_v'/F_m'), photochemical quenching coefficient (q_P), soluble sugar content, starch content, NSC and ground diameter growth of L₁ treatment were significantly lower than those of L₀ treatment. The P_n of the 2 fertilization treatments groups was higher than that of the N₀ treatment, and the soluble sugar content, starch content, NSC and ground diameter growth of leaves were significantly higher than those of the N₀ treatment. The P_n, NSC and ground diameter growth of N₁₉ treatment were 17.87 % and 13.06 %, 21.93 % and 22.35 %, 25.59 % and 24.48 % higher than those of N₀ treatment in L₀ and L₁ light environments, respectively. In conclusion, under the experimental conditions of this study, 60% shading intensity was unfavorable for the growth of transplanted H. miconioides cuttings. Fertilization partially alleviated the adverse effects of shading, with the N₁₉ treatment exhibiting superior growth-promoting effects. Therefore, ambient shading should preferably be maintained below 60%. For fertilizer application, compound fertilizer with higher potassium content is more suitable.