The present invention is a kind of underground auxiliary support assemblies planted with what and plant nursery stock,It is planted it includes a support base and plural number and plants removable group of support rod and plug on what support base,Underground auxiliary support assemblies can in advance sink what nursery garden soil in,What plants plant thereon and plants nursery stock again,The root for planting cultivation nursery stock gradually grows down and twines network what and plant on cultivation support rod,Make tree root and plant to plant the inseparable consolidation one in support rod jail,Wait dig out the mass of soil for planting and planting nursery stock root and planting around cultivation support rod,Cultivation support rod is planted to separate with support base,Continuous will plant plants Nursery stock transplanting to graft area,It can go deep into the deeper underground in graft area by planting cultivation support rod with the plural number for planting cultivation nursery stock root consolidation one,It is not necessary to the outer plus bracket on planting the trunk planted,Just can firmly vertically-arranged what on the ground.本發明是一種用於植栽苗木的地下輔助支撐組件，其包含一支撐座以及複數植栽支撐桿可拆組的插設於支撐座上，地下輔助支撐組件可預先沉埋於育苗區的土壤中，再於其上種植植栽苗木，植栽苗木的根部逐漸往下生長而纏絡於植栽支撐桿上，使樹根與植栽支撐桿牢不可分的固結一體，待挖出植栽苗木根部及植栽支撐桿周圍的土團，植栽支撐桿與支撐座分離，續將植栽苗木移植至移植區，即能藉由與植栽苗木根部固結一體的複數植栽支撐桿深入移植區較深的地底下，不須在植栽的樹幹上外加支架，便能穩固地立置於地上。
