Growing Cannabis in Yukon

Yukon, the smallest of Canada’s three federal territories, is known for its vast landscapes, sparse population, and challenging growing conditions. However, with the increasing interest in cultivating cannabis both for personal and commercial purposes following its legalization in Canada in 2018, the Yukon region has seen a surge in cultivators attempting to capitalize on its unique environment. This article delves into the intricacies of growing cannabis in Yukon, considering factors like the territory’s distinct climate, soil quality, and the techniques best suited for successful cultivation.

Yukon’s Climate and Growing Challenges

Situated in the northwest of Canada, Yukon experiences subarctic climates in most regions. Its long, cold winters and brief summers present specific challenges for outdoor cannabis cultivation.


Cannabis typically thrives in temperate climates. In Yukon, temperatures can plummet to as low as -40°C in winter, which is inhospitable for cannabis plants. Summers are warmer but short, with some areas receiving only 2 to 3 months of growing-friendly weather.


Due to its high latitude, Yukon experiences the Midnight Sun phenomenon during the summer months where the sun can shine up to 20 hours a day. Conversely, winter days can be as short as 4 hours. This unusual light pattern can affect the cannabis plant’s vegetative and flowering phases.

Soil Conditions

The soil in Yukon is generally acidic and shallow, with many regions having a prominent layer of permafrost. While cannabis prefers slightly acidic soil, the permafrost layer can hinder root growth.

Indoor vs. Outdoor Cultivation in Yukon

Given the challenges posed by Yukon’s climate, growers need to choose between outdoor and indoor cultivation methods.

Outdoor Cultivation

  • Advantages: Capitalizes on natural sunlight during summer, which can be ideal for cannabis growth.
  • Challenges: The brief growing season means cultivators have to time their planting and harvesting accurately. Protective measures like greenhouses or hoop houses are essential to shield plants from frost.
  • Strains: Opt for auto-flowering strains, which have a shorter life cycle and are not dependent on photoperiod changes to flower.

Indoor Cultivation

  • Advantages: Complete control over the environment. Growers can manipulate temperature, humidity, and light cycles to optimize growth and yields.
  • Challenges: Requires investment in grow lights, ventilation systems, and sometimes even hydroponic setups. Energy consumption can be high, especially during the long winter months.
  • Strains: Growers can choose from a wider variety of strains due to the controlled environment.

Techniques and Recommendations for Successful Cultivation

Regardless of the chosen method, certain techniques can optimize cannabis cultivation in Yukon:

Germination Inside

Due to the cold soil in early spring, it’s advisable to germinate seeds indoors and transplant them outside once the risk of frost has passed.

Use of Greenhouses

For outdoor growers, greenhouses can offer a protective environment, trapping heat and extending the growing season.

Soil Enrichment

Amending the native soil with compost, worm castings, and other organic matter can improve its fertility and drainage capabilities. Additionally, raised beds can help circumvent the permafrost issue.

Light Supplementation

For indoor growers, using high-quality LED or HID lights can ensure the plants receive adequate light, especially during the winter months.

Maintain Optimal Humidity

In the dry Yukon air, maintaining a humidity level of 40-60% is crucial during the vegetative phase, with a reduction to 40% during the flowering stage to prevent mold.

Legal Considerations

Cannabis cultivation in Yukon, as in the rest of Canada, is governed by federal and territorial regulations. As of the last update:

  • Personal cultivation is limited to four plants per household.
  • Growers must be 19 years or older.
  • All seeds or seedlings must be purchased from a licensed retailer.
  • For commercial cultivation, a license from Health Canada and adherence to specific guidelines, including security measures, is mandatory.


Growing cannabis in Yukon presents unique challenges due to its extreme climate and soil conditions. However, with careful planning, the right choice of strains, and adherence to best practices, successful cultivation is achievable. Whether one opts for the natural light of the Midnight Sun or the controlled environment of an indoor setup, Yukon holds potential for cannabis cultivators willing to navigate its distinct landscape.