NALP Horticultural Tech study materials
NALP Horticultural Tech study resources

NALP Horticultural Tech case studies

NALP Horticultural Tech · Put your knowledge to work in context.

The NALP Horticultural Technician Certification appears under several names in the landscape industry, including Landscape Industry Certified Technician, NALP Landscape Technician Certificate, and Horticultural Technician. It is a professional credential offered through the National Association of Landscape Professionals (NALP), an organization that describes its mission as advancing the landscape industry through inspiring education, expert training, powerful advocacy, and a thriving community. The NALP Horticultural Tech case studies are 5 cases and about 5,486 words.

1

Buxus Block Turning Yellow After Liming

Six weeks after potting, a block of 2,000 Buxus sempervirens 'Suffruticosa' plugs (potted into 3-gal containers) shows pale yellow new growth with distinctly green veins. The crop went into a 70:30 aged pine bark:peat mix amended with 8 lb/yd³ dolomitic lime and 1.5 lb/yd³ micronutrient mix, and is fertigated weekly with 20-10-20 at 150 ppm N.

999 words, about 5 min
2

Street Tree Selection in a Narrow, Salty Planting Strip

A municipality is replanting a 300 m section of downtown sidewalk. The planting strip is 2.4 m wide between curb and building, backfilled with compacted glacial till (pH 7.8, 32% clay, bulk density 1.9 g/cm³).

1,066 words, about 5 min
3

Bleached Patches on a Cool-Season Soccer Field

A 7,000 m² sand-capped cool-season soccer field (60% perennial ryegrass, 40% Kentucky bluegrass) is mown three times weekly at 22 mm with clippings returned. Since late June the crew reports 10-20 cm bleached patches, mainly on the south half, with individual leaves showing tan lesions 3-5 mm long, reddish-brown margins and an hourglass shape.

1,206 words, about 6 min
4

Station Five: Dry Turf and Runoff at the Same Time

A 12-station rotor system irrigates 1.4 ha of established Kentucky bluegrass at a commercial site. The property manager reports wilted, dry turf on station 5 (the front entry island), while runoff pours across the sidewalk within four minutes of that station starting.

1,032 words, about 5 min
5

Leaning, Decayed Maple Beside a Garage and a School Route

A crew is asked to remove a 60 cm dbh, 21 m tall silver maple in a residential backyard. The tree leans about 6° toward a detached garage 14 m to the west.

1,183 words, about 6 min