root-bound

adjective

ˈrüt-ˌbau̇nd 

 also  ˈru̇t-

variants or root bound or rootbound

: having roots formed into a dense, tangled mass that allows little or no space for further growth

These plants have a natural tendency to become root-bound, with their roots growing in a spiralling mass. This condition can be accelerated by tight, clay-like soils and shallow, frequent waterings which encourage corresponding shallow, lateral rooting.

—Maire Simington

especially, of a potted plant : having roots formed into a dense, tangled mass that encircles the inside of a container and that allows little or no space for further growth : pot-bound

Even if it's root-bound, a plant shouldn't be repotted just as it goes into the dormant season.

—Tovah Martin

If plants are rootbound and dry out fast, repot into larger containers.

—Sunset

Examples of root-bound in a Sentence

Recent Examples on the Web

Potted fruit trees may be root-bound and possibly harbor invasives, such as jumping worms. —Lauren Landers, Better Homes & Gardens, 18 Sep. 2025

Potted mums are often root-bound. —Karen Brewer Grossman, Southern Living, 12 Sep. 2025

Larger plants are often root-bound and grow at a slower rate when transplanted; you’ll be surprised by how quickly your smaller starts will take off. —Kristin Guy, Sunset Magazine, 14 Nov. 2023

Word History

First Known Use

1841, in the meaning defined above

Rhymes for root-bound

• abound
• aground
• around
• astound
• background
• campground
• clothbound
• confound
• earthbound
• eastbound
• expound
• fairground