Growing Cannabis in Rhode Island

Rhode Island, also known as the Ocean State, has a unique climate and legal framework that impacts the cultivation of cannabis. Since the state’s move towards the decriminalization and subsequent legalization of medical and recreational cannabis, there has been increased interest in growing this ancient crop. This article provides an overview of the legal context, cultivation requirements, and best practices for growing cannabis in Rhode Island.

Legal Context

Medical Cannabis

Rhode Island legalized medical cannabis in 2006, permitting registered patients and their designated caregivers to cultivate a limited number of plants for personal use. As of the last update in 2021, patients and caregivers are allowed to grow up to 12 mature plants and 12 seedlings. However, these numbers can change, and cultivators are advised to always check current state regulations.

Recreational Cannabis

The status of recreational cannabis has been more fluid. As of 2021, adult-use recreational cannabis was decriminalized but not fully legalized. This means that while possession of small amounts might not lead to prison time, cultivation for recreational use remained illegal. Growers should closely monitor state legislation and policy changes to ensure their cultivation activities remain compliant.

Climate and Growing Conditions

Rhode Island’s maritime climate poses unique challenges and opportunities for cannabis cultivators. Its relatively short growing season, humid summers, and cold winters make it essential to choose the right strains and implement appropriate cultivation practices.

Choosing the Right Strain

Considering Rhode Island’s climate, cultivators might opt for strains known for their resilience to cooler temperatures and resistance to mold. Indica or Indica-dominant hybrid strains often fare better in such conditions. However, modern hybrid strains designed for northern climates can also be considered.Outdoor vs. Indoor Cultivation

Outdoor cultivation takes full advantage of the natural sunlight but may expose plants to the state’s fluctuating weather conditions. It’s recommended to plant in late May to early June to ensure the plants receive maximum sunlight during the crucial vegetative phase.

Indoor cultivation, on the other hand, allows for more environmental control, ensuring optimal light, temperature, and humidity year-round. While this method might be more resource-intensive, it often leads to a more predictable harvest.

Best Practices for Cultivation

Soil Preparation

Whether cultivating outdoors or in containers for indoor grows, soil quality is paramount. A rich, well-draining potting mix is ideal. Many growers opt for a mix containing coco coir, perlite, and organic compost. Regularly testing the soil’s pH and nutrient content will help in maintaining optimal growing conditions.

Pest and Disease Management

Rhode Island’s humidity can lead to challenges like mold and mildew. Regularly inspecting plants and ensuring proper spacing to improve air circulation can prevent these issues. Natural predators, like ladybugs and predatory mites, can help control pest populations. It’s recommended to avoid chemical pesticides, especially if the cannabis is for medical use.

Watering and Nutrition

Overwatering is a common mistake. It’s crucial to water the plants when the top inch of soil feels dry, ensuring deep root penetration without waterlogging the soil. Additionally, cannabis plants have specific nutritional needs throughout their growth cycle. Using organic fertilizers and following a nutrient schedule can lead to healthier plants and better yields.

Harvesting and Curing

Once the majority of trichomes (tiny crystal-like structures on the buds) turn milky white with some turning amber, it’s generally time to harvest. Properly drying and curing the cannabis post-harvest is crucial for optimal flavor, potency, and preservation.


Hang the cut plants or branches in a dark, well-ventilated room with a consistent temperature of around 60-70°F. This drying process usually takes about 7-14 days.


After drying, trim off excess leaves and place the buds in quart-sized glass mason jars, filling them ¾ of the way. For the first week, open the jars once a day for about 10 minutes to let fresh air in and moisture out. This curing process, when done correctly, can significantly enhance the cannabis’s quality and should continue for at least a month, though many growers cure for two months or more.


Growing cannabis in Rhode Island requires a deep understanding of the state’s legal landscape, its unique climatic conditions, and the general best practices for cannabis cultivation. With diligence, research, and adherence to guidelines, Rhode Islanders can cultivate high-quality cannabis for medical or, pending future legislation, recreational use. Always consult current local regulations before initiating any cultivation activities.