seedling

noun

seed·​ling ˈsēd-liŋ 

1

: a young plant grown from seed

2

a

: a young tree before it becomes a sapling

b

: a nursery plant not yet transplanted

seedling adjective

Illustration of seedling

• 1 primary root
• 2 rootlet
• 3 root hairs
• 4 hypocotyl
• 5 cotyledon
• 6 epicotyl
• 7 true leaf

Examples of seedling in a Sentence

Recent Examples on the Web

Aim to plant tomato seedlings in the garden when night temperatures are generally above 50°F. —Megan Hughes, Better Homes & Gardens, 31 May 2026

The proper preparation of the seeds and planting technique are important for successful seedling establishment. —Kim Toscano, Southern Living, 30 May 2026

This is considered a bit of an invasive plant, but conscientious gardeners can remove or till under unwanted seedlings. —Tom MacCubbin, The Orlando Sentinel, 30 May 2026

Start fertilizing two weeks after the seedlings have been planted, says Spoonemore. —Madeline Buiano, Martha Stewart, 27 May 2026

Word History

First Known Use

1629, in the meaning defined at sense 1

Rhymes for seedling

• needling
• wheedling

Kids Definition

seedling

noun

seed·​ling ˈsēd-liŋ 

1

: a young plant grown from seed

2

: a tree before it becomes a sapling

seedling adjective