Growing Hemp in Idaho

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A GUIDE TO GROWING HEMP IN IDAHO

Looking Hemp flower for sale in Idaho or looking to buy cbd isolate? We have that in our product pages as well as hemp seed and hemp clone for sale. If you’re looking to grow in Idaho please follow these guidelines:

Plant Hardiness Zone(s)

Idaho has diverse plant hardiness zones ranging from 3b to 8a on the USDA Hardiness Zone Map. Farmers in the state are generally advised to consider growing plants that are categorized in zone 6. However, Southern Idaho has warmer summers than the Northern region and is therefore more conducive to growing hemp as the plants are thermogenic. The Hemp Indica strains are most compatible to these zones.

Thermal Profile

The Northwestern state of Idaho falls into a North temperate thermal zone which means that it has mild temperatures ranging from cold to warm. Once again, these temperate climatic conditions are more suitable for the Indica strain of hemp.

Length of Growing Season

On average, the last day of frost in the state is May 9th. However, to ensure that soil temperatures are optimal for hemp seed germination, planting should begin in late May or early June. Plant maturity will only be reached when sunlight decreases to less than 12 hours per day meaning that harvesting should occur around August.

Average Sunlight Throughout Growing Season

Idaho receives almost 3000 hours of sunlight annually with the greater amount occurring in the summer months during the hemp growing season. An expected maximum of around 15 hours can be expected in the peak of summer with around 12 hours at the beginning and end of the growing season. On average, 70% of daylight is sunny.

Average Annual Precipitation

Average rainfall varies greatly between different regions of Idaho with averages of 33 inches in the North and 13 inches in the South. Hemp requires between 10 and 12 inches of rainfall per growing season making the North more suitable with regards to water requirements for optimal growth.

Surface Elevation

Elevation in Idaho ranges from 12,662 ft to 738 ft and has both flat and mountainous regions. Although hemp flourishes in mountainous regions, the plant is highly adaptable and suitable for growth at any elevation.

Average Sunlight Throughout Growing Season

Idaho receives almost 3000 hours of sunlight annually with the greater amount occurring in the summer months during the hemp growing season. An expected maximum of around 15 hours can be expected in the peak of summer with around 12 hours at the beginning and end of the growing season. On average, 70% of daylight is sunny.

Soil PH

Soil pH levels vary greatly in different parts of Idaho. However, the drier southern region has a higher pH level making it more reactive. Hemp prefers a soil pH of between 6.0 and 7.0.

Soil Composition

Idaho has a variety of different soil types and composition from rocky to volcanic to clay in some areas. Hemp prefers loose soil rather than compacted soil to allow the taproot to reach deep into untapped nutrients lying deeper underground. However, the plant is adaptable and will send out more branch roots in harder soils in order to receive maximum nourishment.

Notable Pests

Aphids, mites, caterpillars and most specifically cutworm (which is a newer threat to the region) are pests that will need to managed with a hemp crop. Most pesticides are effective at managing these pests. However, spraying should preferably not occur in the flowering season. For organic crops, natural pesticides should be used or beneficial insect solution to naturally manage and control different types of pest that could negatively impact a hemp crop.

HEMP HARDINESS SCORE:

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

Obtaining A Hemp Grower’s License In Idaho

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 Idaho, as well as a breakdown of the application process, click here.