Browse All Companion Plants for Cannabis
Explore the main herbs, flowers, and ground covers used in cannabis companion planting. Use this page to compare plants quickly, understand their main role, and choose which guides to read next.
A Simple Directory of Cannabis Companion Plants
This page brings the full companion plant list together in one place. Some plants are better for beneficial insects, some are more useful for soil cover, and others are often chosen for biodiversity, pollinator support, or aromatic value. Start with the plant that matches your goal, then move into the individual guide for deeper detail.
Quick Comparison
Use this table to get a fast overview of the main companion plants featured on Root Companions.
| Plant | Main Role | Best For | Good Fit |
|---|---|---|---|
| Marigold | Pest support | General garden support | Outdoor beds and mixed gardens |
| Dill | Beneficial insects | Attracting insect activity | Outdoor beds and border planting |
| Yarrow | Biodiversity | Wider insect support | Outdoor gardens |
| White Clover | Soil support | Living mulch and ground cover | Larger spaces and bed edges |
| Chamomile | General support | Diverse garden planting | Outdoor beds |
| Basil | Aromatic support | Mixed herb and flower setups | Containers and garden edges |
| Nasturtium | Trap planting | Pest-pressure strategies | Outdoor gardens and borders |
| Lavender | Pollinators | Aroma and flowering support | Sunny garden edges |
| Sweet Alyssum | Insectary plant | Beneficial insect attraction | Low borders and bed edges |
Every plant has a different role. The best choice depends on your setup, spacing, and purpose.
All Companion Plants
Browse the full list below and click through to read each individual plant guide.
Marigold
A classic companion plant often included for broader natural support in mixed cannabis gardens.
Read the Marigold guide →
Dill
A strong option for growers looking to attract more beneficial insect activity into the space.
Read the Dill guide →Yarrow
Useful for supporting insect diversity and helping the wider garden feel more balanced.
Read the Yarrow guide →White Clover
A low-growing plant valued for ground cover, living mulch, and wider soil-supporting use.
Read the White Clover guide →Chamomile
A softer companion plant often included in diverse, garden-style cannabis setups.
Read the Chamomile guide →Basil
An aromatic herb commonly used in mixed planting systems around cannabis.
Read the Basil guide →Nasturtium
A useful supporting plant for growers thinking more carefully about pest pressure.
Read the Nasturtium guide →Lavender
A fragrant flowering plant valued for aroma, pollinator support, and garden diversity.
Read the Lavender guide →Sweet Alyssum
A compact flowering plant often chosen for beneficial insect attraction and border planting.
Read the Sweet Alyssum guide →Choose by Purpose
Start with the outcome you want, then pick the plant that best fits your space.
Pest Support
Start with marigold or nasturtium if your focus is natural garden support and broader planting balance.
Beneficial Insects
Dill, yarrow, lavender, and sweet alyssum are some of the strongest choices to begin with.
Soil Cover
White clover is the clearest option if you want low-growing support around the base area.
Aromatic Layering
Basil and lavender are often chosen when growers want a more herb-and-flower-based setup.
Where Beginners Should Start
If you are new to cannabis companion planting, do not try to use everything at once. Start with a small number of plants that have a clear role. For most growers, that means choosing one flowering insect-support plant, one aromatic option, or one ground-cover plant depending on the setup.
- Start with purpose, not quantity.
- Use fewer plants and give them room.
- Do not overcrowd containers.
- Think about water, airflow, and root space.
- Expand only after the first setup works well.
Related Pages
Once you know the main plant options, the next step is understanding what they do and how to use them well.
Explore the Full Companion Plant Library
Start with the plants that best match your goal, then move into the individual guides to build a more practical cannabis companion planting setup.