How to test the quality of plants? What are the standards for branches, roots and crowns of plants?

1. 1 pure variety, robust growth and no pests and diseases. The specification of 1.2 meets the design/procurement requirements, the DBH error is not more than 0.3cm 1.3, the trunk is upright, and the bark damage is not more than 5* 10cm. 1.4. The crown is round and the branches are even.

Two species of flowering shrubs

1. 1 pure variety, strong growth, bright color and no pests. The specifications of 1.2 meet the design/procurement requirements, with crown diameter class error not more than 5cm, ground diameter class error not more than 0.3cm 1.3 bark damage not more than 2*3cm. 1.4 crown roundness.

3 ground cover

1. 1 purebred, healthy and free from pests and diseases. 1.2 container seedlings are well preserved without damage; The soil ball seedlings keep the soil ball intact. 1.3 The branches and leaves are intact, without damage or withering. 1.4 is bright in color and does not fall off.

4 lawn

1. 1 pure variety, robust growth and no pests and diseases. 1.2 soil layer thickness exceeds 1.5cm, and it is smooth and seamless. 1.3 The height of grass is 2-4cm.

5 Herbaceous flowers (seasonal flowers)

1. 1 pure variety, robust growth and no pests and diseases. The specification of 1.2 meets the design/procurement requirements with an error of less than 3cm. 1.3 The nutrient bowl is in good condition, the soil ball is in good condition, and the flowers/leaves of 1.4 are in good condition, basically without damage.