Growing herbs together seems natural - they're all culinary plants, after all. But herbs have diverse origins and growing requirements. Mediterranean herbs evolved in dry, rocky soils while others come from humid climates. Matching water needs is the key to successful herb companion planting in containers.
This guide explains which herbs grow well together, which to keep separate, and how to create thriving herb container gardens for your balcony or patio.
Mediterranean Herb Group (Dry Conditions)
Growing conditions: Full sun, well-drained soil, allow to dry between waterings. These herbs evolved in rocky Mediterranean climates and suffer in consistently moist soil.
Rosemary + Sage + Thyme + Oregano
This combination works beautifully. All four prefer dry, sunny conditions and infrequent watering. Plant in a single container with excellent drainage. Rosemary grows largest - place in center or back.
Lavender + Rosemary + Thyme
A fragrant, drought-tolerant combination. All three thrive in dry conditions and poor soil. Excellent for a sunny balcony herb garden. Lavender adds beautiful purple flowers.
Moisture-Loving Herb Group
Growing conditions: Full sun to partial shade, consistently moist soil, regular watering. These herbs prefer richer soil and more frequent watering than Mediterranean types.
Basil + Parsley + Cilantro + Chives
An excellent container combination. All four need regular moisture and similar sun. This creates a versatile cooking herb garden - perfect for a kitchen window box. Cilantro may bolt in summer heat.
Basil + Parsley
Classic Italian cooking companions. Both need consistent moisture and tolerate similar conditions. Plant basil in the center with parsley around edges. Different basil varieties mix well together.
Herbs to Keep Separate
Mint (Always Alone)
Mint is extremely aggressive. Its runners will overtake any companion within weeks. Always grow mint in its own isolated container. Even then, runners may escape drainage holes - place on a hard surface.
Fennel (Always Alone)
Fennel releases allelopathic chemicals that inhibit most plant growth. It should grow completely isolated from all other herbs and vegetables.
Dill (Near Mature Stage)
Young dill grows fine with most herbs. However, mature dill (flowering/seeding) can inhibit some plants. Best in its own container if growing to seed, or harvest young.
Container Arrangement Ideas
Mediterranean Herb Pot (12-14" pot)
Back/center: Rosemary (tallest)
Middle: Sage + oregano
Front/edge: Thyme (trailing)
Kitchen Herb Window Box
Center: Basil varieties
Sides: Parsley + cilantro (cool seasons) + chives
Isolated Mint Container
One pot, one mint: Spearmint, peppermint, or chocolate mint alone
Size: 8-10" pot with drainage holes
Herb Compatibility Chart
| Herb | Good With | Avoid With |
|---|---|---|
| Basil | Parsley, cilantro, chives, oregano | Sage, rosemary, thyme, mint |
| Rosemary | Sage, thyme, oregano, lavender | Basil, parsley, cilantro, mint |
| Thyme | Rosemary, sage, oregano, lavender | Basil, cilantro, mint |
| Parsley | Basil, chives, cilantro, oregano | Mint |
| Chives | Basil, parsley, cilantro, most herbs | Beans, peas |
| Mint | Nothing (grow alone) | Everything |
Frequently Asked Questions
What herbs should not be planted together?
Avoid planting mint with any other herbs - it's extremely aggressive and will overtake companions. Don't combine Mediterranean herbs (rosemary, sage, thyme) with moisture-loving herbs (basil, cilantro, parsley) as they have opposite water needs. Fennel inhibits most herbs and should grow alone.
What herbs can be planted together in the same pot?
Group herbs by water needs: Mediterranean herbs (rosemary, sage, thyme, oregano, lavender) together in drier soil; moisture-lovers (basil, parsley, cilantro, chives) together with regular watering. Same-group herbs share a container beautifully.
Can basil and rosemary be planted together?
No, basil and rosemary are poor companions. Basil needs consistent moisture while rosemary prefers dry soil. In a shared container, either basil suffers from underwatering or rosemary from overwatering. Keep in separate containers.
Can mint be planted with other herbs?
No, mint should always be grown alone. It spreads aggressively via runners and will overtake any container companion within weeks. Even in separate containers, mint runners may escape drainage holes. Keep mint completely isolated.
What herbs grow well with vegetables?
Many herbs are excellent vegetable companions: basil with tomatoes, dill with cucumbers (young dill), parsley and chives with most vegetables, oregano with peppers. Herbs' aromatic oils help repel pests from vegetable crops.
Can I grow all herbs in one container?
Only if they have matching water needs. A Mediterranean herb pot (rosemary, thyme, sage, oregano) works perfectly. A moisture-loving herb pot (basil, parsley, cilantro, chives) also works. But mixing the two groups causes problems.
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