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Colorado residential weed growing

colorado Residential Weed Growing

Ready to grow your own cannabis at home in Colorado? From planting your first seed to maximizing your harvest, our residential growing consultants and easy-to-follow suggestions are here to help you every step of the way.

Buy Cannabis Seeds Here!

Buy Cannabis Seeds Here!

Buy Cannabis Seeds Here!

Buy Cannabis Seeds Here!

Buy Cannabis Seeds Here!

Buy Cannabis Seeds Here!

Homegrown cannabis in colorado

age requirement

Must be 21 or older.

number of plants

Up to 6 plants per adult, but only 3 plants can be flowering (budding) at one time. 12 plants maximum regardless of the number of adults living in the home. Medical patients may be allowed to grow more plants with proper authorization (depending on doctor recommendation and local limits).

location

Plants must be grown indoors in an enclosed, locked space that is not visible to the public.

6 best practices for colorado home grows

Control your Environment

invest in quality lighting

choose the right genetics

Growing indoors in Colorado means you can sidestep unpredictable weather, but you still need to create the perfect indoor environment. Aim for daytime temperatures between 70–85°F and nighttime temperatures around 58–70°F to mimic ideal conditions. Humidity is key: too low, and your plants dry out fast; too high, and you risk mold. Shoot for 40–60% humidity, and consider using a humidifier or dehumidifier to hit the mark. Good airflow is essential - oscillating fans and exhaust systems keep fresh air circulating and prevent hot spots or stagnant pockets of stale air. Colorado’s dry climate is a double-edged sword indoors, so stay on top of these conditions for healthy, thriving plants.

choose the right genetics

invest in quality lighting

choose the right genetics

Colorado’s unique environment - high altitude and dry air - makes it essential to choose cannabis genetics that can handle these challenges, even indoors. Indica-dominant hybrids are great choices because they’re generally shorter and more resilient to stress. Many growers in Colorado also swear by strains developed or bred locally for the state’s conditions - these tend to be better adapted to lower humidity and more intense light cycles. Start with clones or seeds from reputable sources, especially those recommended by local growers, to set yourself up for success from the beginning.

invest in quality lighting

invest in quality lighting

invest in quality lighting

Lighting is your indoor sun - don’t skimp on it! High-quality LED lights are efficient and provide a broad spectrum that mimics natural sunlight, while ceramic metal halide (CMH) or light-emitting ceramic (LEC) lights can also deliver excellent results. Adjust your lights as the plants grow - start higher and move closer gradually to avoid burning young plants. Keep your canopy well-lit but not stressed by excessive heat or light intensity. Reflective walls or mylar can help bounce light around the space, ensuring every part of your plant gets the attention it needs for big, sticky buds.

master the art of feeding

proper training techniques

invest in quality lighting

Colorado’s tap water often leans alkaline, so adjusting your water’s pH to 6.0–6.5 is crucial for healthy nutrient uptake. Start with a balanced nutrient schedule and pay attention to how your plants respond - overfeeding can cause nutrient lockout, while underfeeding will leave them hungry for essential minerals. Since Colorado water can lack calcium and magnesium, consider adding CalMag supplements to boost plant health. Monitoring runoff pH and EC helps you fine-tune your feeding and keep your plants on track for explosive growth and rich, flavorful harvests.

proper training techniques

proper training techniques

proper training techniques

In an indoor grow, maximizing your space is essential. Use low-stress training (LST) to gently bend and tie down branches, creating an even canopy and ensuring all bud sites get equal light. Topping can encourage your plants to branch out, creating a bushier plant that makes the most of your grow lights. For growers with a bit more experience, try a Screen of Green (SCROG) setup - this uses a net to support the canopy, boosting yields and airflow. These techniques turn a small indoor space into a powerhouse of production.

harvest & cure like a pro

proper training techniques

proper training techniques

When your plants are finally ready - around 70% of pistils turned orange and trichomes cloudy - it’s time to harvest. But Colorado’s low humidity can dry buds too quickly, leading to harsh, flavorless smoke. Instead, aim for a slow dry in a dark room at 60°F and 60% humidity for about 7–10 days. Use fans for gentle airflow (not directly on the buds) to avoid mold. Once dry, cure your buds in airtight jars for at least 2–3 weeks, opening them daily to release excess moisture. This final step transforms your harvest into smooth, aromatic, and potent cannabis that truly stands out.

Colorado Home Grow Hub: cannabis growing tips

  • Navigating Colorado’s Cannabis Growing Law: What Home Growers Need to Know
  • The Role of Altitude in Colorado Cannabis Growing: Myths and Truths
  • Grow Room vs. Grow Tent: What Works Better for Colorado Cannabis Growers?
  • Colorado Water Quality and Cannabis: What’s Really in Your Tap?
  • Creative Ways to Reuse and Recycle Cannabis Grow Waste in Colorado
  • Mastering the Art of Curing and Preservation for Your Homegrown Colorado Cannabis
  • Identifying and Preventing Colorado’s Most Common Cannabis Pests
  • Avoiding Common Mistakes Colorado Cannabis Growers Make Indoors
  • Optimizing Your Indoor Setup for Peak Performance in Colorado
  • Colorado’s Favorite Homegrown Strains and Why They Work Here

FAQ: Homegrowing in Colorado

Please text us at (937) 476-1669 if you cannot find an answer to your question.

No. Colorado law only allows home cultivation at your primary residence. Growing at a second home or rental (even one you own) is not permitted unless you live there full time.


No. All personal cannabis cultivation must be indoors or in a fully enclosed, locked structure that is not visible to the public.


No license is required to grow cannabis for personal, non-commercial use—as long as you follow the state’s limits and rules.


No. The household limit is 12 plants total, even if more than two adults live in the residence.


All cannabis plants—flowering, vegetative, clones, and seedlings—count toward the 6-plant per person and 12-plant per household limits.


No. Personal cultivation is strictly for private use only. You may not give away, trade, or sell cannabis, plants, seeds, or clones.


Only if your landlord or property manager allows it. Property owners may legally ban cannabis cultivation on their premises.


Yes, but they cannot access, assist with, or be near the grow area. The space must be secured and locked to keep anyone under 21 out.


Yes. Cities and counties may set stricter limits on plant counts, growing locations, or even ban personal grows entirely. Always check local laws.


Exceeding plant limits or violating home grow rules can result in fines, criminal charges, or plant seizure, especially if minors are exposed or safety laws are ignored.


Buy Cannabis Seeds Here!

Buy Cannabis Seeds Here!

Buy Cannabis Seeds Here!

Buy Cannabis Seeds Here!

Buy Cannabis Seeds Here!

Buy Cannabis Seeds Here!

Homegrowing resources

Helpful materials to make personal cannabis growing simple and stress-free.

Compliance Checklist - CO (docx)Download

Check out the full guide here!

Growing Cannabis At Home In Colorado

Good things take root with time—especially sticky, frosty things.

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