Growing Hemp in Hawaii

Begin Your Hemp Journey


In August of 2018, Hawaii joined the ranks of the hemp industry after they granted three farmers licenses to grow hemp. This was the first of many steps for Hawaii to join the hemp industry. To apply for a license farmers can contact the Hawaiian Department Of Agriculture or HDOA.

Plant Hardiness Zone(s)

Thanks to the unusual terrain of Hawaii, there are 11 hardiness zones for gardeners to enjoy in this state. It will be dependent upon where the garden is located as to which hardiness zone any garden is in. It’s not at all unusual for a person’s property to encompass more than one hardiness zone. For this reason, the pH of the soil will vary greatly from one garden to the next and even in the same garden location if the garden itself is large enough.

Thermal Profile

Temperatures and humidity are less extreme than other tropical regions due to the trade winds that come in from the east. While summer highs are typically around 88 degrees Fahrenheit they dip down to around 83 degrees Fahrenheit at night. Lower elevations rarely dip below 65 degrees Fahrenheit at night. While snow isn’t typically seen in the tropics, at the 13,800-foot level it’s not unheard of in some of the colder winter months.

Length of Growing Season

Average Sunlight Throughout Growing Season

Average Annual Precipitation

Thanks to a tropical climate, Hawaii has the second-highest annual rainfall rate on earth of about 460 inches annually. There are basically two seasons in the State of Hawaii. Wet, and dry. The wet season encompasses October to April with the dry season encompassing May to October. Soil composition will vary greatly depending on the elevation and volcanic region in which the garden/farmland lies. Pests include the typical fare of ants, various beetles, twig borers, mealy bugs, spider mites, and aphids.

Surface Elevation

Interestingly, although Hawaii is comprised of islands, the highest point of the state is 13,796 feet and the lowest point is at the level of the Pacific Ocean. Hawaii enjoys an average of 271 sunny days annually and a very tropical climate.

Average Sunlight Throughout Growing Season

Soil PH

Soil Composition

Notable Pests


Click here to read about how we calculate a state’s Hemp Hardiness Score.

Obtaining A Hemp Grower’s License In Hawaii

Under federal law, it is illegal to grow hemp anywhere in the United States without first obtaining a grower’s license from the appropriate regulatory body for the state in which the interested party intends to plant the crop. For information on the legal status of hemp in Hawaii, as well as a breakdown of the application process, click here.

Program Name Program Type Resources
Hawaii Pilot State of Hawaii Department of Agriculture Industrial Hemp Pilot Program

Industrial Hemp Pilot Program to Begin