Companion Herbs and Houseplants That Love to Share Space with Cannabis

When cultivating cannabis at home, whether indoors or out, one of the best ways to boost plant health, deter pests, and enhance the overall environment is by choosing the right companion plants. Herbs and houseplants aren’t just pretty extras - they can be functional allies in your cannabis grow space. From bug-repelling scents to beneficial root pairings, here’s your guide to the best green roommates for your weed.

Why Companion Planting Works

Cannabis, like many plants, thrives in an ecosystem. Companion herbs and houseplants can:

• Repel unwanted pests like spider mites, aphids, and whiteflies
• Attract beneficial insects like ladybugs and pollinators
• Improve soil health and aeration
• Create microclimates for humidity regulation
• Add flavor to your kitchen or scent to your grow space

Think of your grow as a small forest - diversity is a strength.

Best Herbs to Grow with Cannabis

1. Basil

Basil is more than a pizza topping. It releases volatile oils that naturally repel thrips, mosquitoes, and aphids.

Perks:

• Enhances flavor and aroma in cannabis through shared terpenes
• Grows well in similar conditions: warm, humid, lots of light
• Easy to harvest regularly for kitchen use

2. Lavender

This fragrant favorite helps deter moths, fleas, and ticks while offering a calming aroma.

Perks:

• Attracts pollinators
• May boost the linalool content in nearby cannabis plants
• Great for making calming teas or sleep sachets

3. Chamomile

Often seen in tea, chamomile also boosts neighboring plant health through natural antifungal and antibacterial properties.

Perks:

• Draws in beneficial wasps and hoverflies
• Helps prevent mold and damping-off in seedlings
• Adds a lovely, soothing scent to your grow room

4. Cilantro (Coriander)

Cilantro attracts predatory insects that feast on cannabis pests.

Perks:

• Deters aphids and spider mites
• Fast-growing and cool-loving, good for shoulder seasons
• Dual-use: leaves for cooking, seeds for spice

5. Lemon Balm

A member of the mint family, it gives off a strong lemon scent that repels mosquitoes and gnats.

Perks:

• Can help mask the smell of cannabis outdoors
• Spreads easily and thrives in partial shade
• Can be made into natural bug spray or tea

Houseplants That Thrive Alongside Cannabis

1. Aloe Vera

A low-maintenance succulent known for its healing gel, aloe also boosts cannabis root health when used in compost teas.

Perks:

• Natural antifungal
• Stores water, helping balance humidity
• Great for skin care and first aid

2. Spider Plant (Chlorophytum comosum)

A popular air-purifying plant that doesn’t compete for nutrients and adds visual interest.

Perks:

• Tolerates a wide range of conditions
• Helps manage humidity
• Removes airborne toxins like formaldehyde

3. Snake Plant (Sansevieria)

This upright stunner releases oxygen at night and can help stabilize temperature fluctuations.

Perks:

• Practically unkillable
• Adds vertical interest to a grow tent or indoor area
• Natural air purifier

4. Peace Lily (Spathiphyllum)

Beautiful and functional, peace lilies help maintain humidity levels.

Perks:

• Indicates water issues by drooping
• Helps prevent dry environments that attract pests
• Doesn’t compete heavily with cannabis for nutrients

Tips for Growing Cannabis with Companions

• Spacing matters: Avoid overcrowding your grow area. Make sure airflow isn’t blocked.
• Light compatibility: Herbs and cannabis both prefer full-spectrum light, but houseplants like peace lilies prefer lower light - place them strategically.
• Watch for root competition: Container size and plant choice should match your cannabis's needs.
• Rotate and trim: Herbs like basil and cilantro grow quickly - harvest often to keep balance.
• Go organic: If you're using companions for pest control, skip chemical pesticides.

Building Your Cannabis Companion Garden

Creating a mixed grow environment with herbs and houseplants brings nature’s wisdom into your cultivation space. It’s a symbiotic system where everything works together - your cannabis plants stay healthier, your home smells amazing, and your kitchen stays stocked with fresh herbs.

At HomeGrow Helpline, we’re passionate about helping everyday people cultivate thriving cannabis gardens right from the comfort of home. Got questions or need help? Call or text us at (937) 476-1669 today.