Peach palm (Bactris gasipaes H.B.K.) presents multiple economic uses especially regarding its heart-of-palm production; however, this species nutritional requirement should be better elucidated. In this study, we evaluated the visual symptoms of micronutrient omission, dry matter yield and nutrient contents of peach palm plants. The study was carried out in a greenhouse with randomized block experimental design with four replicates. The following treatments were adopted: complete (macro and micronutrients); complete with individual omission of B, Cu, Fe, Mn, Zn and Cl. Visual symptoms of deficiency occurred in all omission treatments. Decrease in plant size and leaf morphological alterations were observed. Dry matter yield of leaves, stem, roots and total decreased approximately 50%, with major limitation caused by Cu and B; root/shoot ratio was (Fe > B > Zn = Cl > Mn > Cu > complete) and relative growth presented the order (complete > Mn > Cl > Zn > Fe > B > Cu). Foliar nutrient contents in complete solution were (Cl > Fe > Mn > Zn > Cu). Chlorine appeared to be important for peach palm development. The most limiting micronutrients were Cu and B.