4-H Plant Science Fair Resources

In-Person Horticulture, Tree, Grass & Weed ID Contests

Open to all 4-H'ers from all counties, ages 9–18 (by Jan. 1 of the current year) — need not be enrolled in a horticulture project. Youth choose which contest(s) to participate in. Participants will be able to use a list of plants while identifying samples.

Date: Wednesday June 14, 2023 at 10 a.m.–Noon

Location: Nebraska Extension in Lancaster County Conference Rooms, 444 Cherrycreek Rd, Suite A, Lincoln

Registration deadline: Monday, June 12, 2023 by calling 402-441-7180.

Contest options include:

• Horticulture Contest
• Tree Identification
• Weed & Grass Identification

Lancaster County 4-H Online Tree and Grass & Weed ID Contests

Open to all youth and adults. Enrollment in 4-H is not required to participate. 2023 contests dates TBA.

Rules and links to participate

Nebraska 4-H Online Horticulture Judging Contest

A statewide online Horticulture Judging Contest which tests 4-H'ers knowledge in three areas: general knowledge questions, plant part and seed identification, as well as a judging portion. 2023 contests dates TBA.

Rules and link to participate

Tree ID Contest Study Resources:

• Tree Identification Manual (4-H 332), Nebraska Extension publication. $5.50 for pdf.

Weed and Grass ID Contest Study Resources:

• Weed & Grass Plant List for Identification Contest, Nebraska 4-H (pdf).
• Common Grasses of Nebraska (EC170), Nebraska Extension publication. Free web versions, $5 for print version.
• Weeds of the Great Plains. $35 for hardbound book. Nebraska Department of Agriculture

Horticulture Contest Study Resources:

• NJHA Horticulture Contest Identification Answer Sheet, National Example (pdf)
• Landscape Ornamentals, Lancaster County 4-H PowerPoint With Lots of Photos (.ppt - large file)
• Flowers and Indoor Plants, Lancaster County 4-H PowerPoint With Lots of Photos (.ppt - large file)
• Vegetables, Lancaster County 4-H PowerPoint With Lots of Photos (.ppt - large file)