Landscape Horticulture Option

The Department of Tropical Plant and Soil Science’s Landscape Horticulture Option prepares students for exciting and diverse careers in the landscape industry. UH Mānoa is centered within the Pacific rim, and is the only U.S. landscape program for sub-tropical and tropical environments, making studying at UH Mānoa a unique experience.

The landscape horticulture option will prepare students to effectively design, install. and maintain landscapes that include trees, shrubs, flowers, house plants, and turfgrass that are used to enhance the environment. Students of the program learn theoretical foundations, which lead to a practical understanding and implementation of how to produce environmentally and economically sustainable landscapes.

The landscape industry in Hawai’i is a multi-million dollar business incorporating landscape nurseries. landscape architects, landscape contractors, arborists, and landscape maintenance, and interior landscape companies. Hawai’i has lush resorts. parks. recreation and athletic fields, world class golf courses, master planned residential communities, and a variety of commercial projects. which offer TPSS students excellent opportunities to choose from upon graduation.

Students selecting this option need to take BOT 101/101L (or their equivalent) or BIOL 172/172L (or their equivalent) and CHEM 161/161L and CHEM 162/l62L (or their equivalents) to fulfill the natural science requirement of the UH Mānoa Core. These are considered prerequisite to some upper division courses in the major.

Major Requirements

The following courses need to be taken for this major:

TPSS 200 Tropical Crop Science
TPSS 304 Fundamentals of Soil Science
TPSS 351 Enterprise Management
TPSS 463 Irrigation and Water Management
TPSS 481 Weed Science
PEPS 363 General Entomology (3) and Lab (I)
PEPS 405 Plant Pathogens and Disease (4)


The student must take 7 courses from the following electives for this option:

Group B. Management courses

TPSS 300 Tropical Crop Production Systems (4)
TPSS 350 Tropical Landscape Practices
TPSS 352 Landscape Architecture History, Theory & Practice
TPSS 353 Landscape Graphics Studio
TPSS 354 Tropical Landscape Planting Design Studio
TPSS 364 Horticulture Practice (2)
TPSS 402 Tropical Flower and Foliage Crop Production
TPSS 405 Turfgrass Management
TPSS 420 Plant Propagation
TPSS 430 Nursery Management
TPSS 435 Environmental Soil Science
TPSS 450 Nutrient. Management of Soils and Plants (4)
TPSS 460 Soil Plant Environment