Which characteristic should be present in healthy nursery stock?

Healthy nursery stock should indeed have firm and straight roots, as this indicates a well-established plant that can take up water and nutrients effectively. Strong roots are critical for supporting the plant's growth, stability, and overall health. When roots are firm, they are typically free from diseases and pests that can hinder the plant's development. Straight roots suggest that the plant has been properly grown in its container without becoming root-bound or having been excessively manipulated, which can lead to stress in the plant.

In contrast, long leggy branches suggest that the plant is stretching for light, which can indicate insufficient light conditions or poor health. Brown and wilted leaves are signs of stress, environmental issues, or disease, indicating that the plant is not expressing healthy growth. Lastly, containers in disrepair may lead to over or under watering, poor aeration, and root damage, all of which are detrimental to the health of the nursery stock. This reinforces the notion that all aspects of nursery management, from root health to container condition, significantly influence plant vitality.