Kale is a nutrient-dense leafy green that grows well in cooler temperatures and provides a steady harvest throughout the season. By pairing it with the right plants, gardeners can improve its growth, keep pests at bay, and enhance soil fertility. Companion planting is a simple yet effective way to create a more productive and naturally balanced garden.
Why Companion Planting Works for Kale
1. Natural Pest Control
Some plants release scents that repel common kale pests, including aphids, flea beetles, and cabbage worms. Placing these plants nearby reduces the risk of infestations without the need for chemical pesticides.
2. Enriching the Soil
Certain plants help improve soil structure or add essential nutrients like nitrogen, which is vital for kale’s leafy growth.
3. Maximizing Space
Pairing kale with plants that have different growth habits allows for better use of garden space. Some plants provide shade, while others grow deep roots that help break up the soil.
4. Enhancing Growth and Flavor
The right plant combinations create a balanced environment that promotes healthier kale growth and can even enhance its taste.
Best Companion Plants for Kale
1. Onions and Garlic
- Their strong scent deters aphids and cabbage worms, which often target kale.
- They have shallow roots and do not compete with kale for nutrients.
2. Herbs (Dill, Basil, Cilantro, and Thyme)
- Dill attracts beneficial insects like ladybugs and parasitic wasps that feed on kale pests.
- Basil improves plant health and repels common garden insects.
- Cilantro and thyme provide additional protection against unwanted bugs.
3. Carrots
- Carrots have deep roots, preventing them from competing with kale’s shallow root system.
- Their presence helps improve soil texture and aeration.
4. Beets
- Beets and kale complement each other because they absorb nutrients at different soil depths.
- The leafy tops of beets help retain moisture in the soil, which benefits kale.
5. Celery
- The scent of celery helps mask the presence of kale, making it less attractive to pests.
- It grows well without interfering with kale’s nutrient needs.
6. Radishes
- Radishes serve as a trap crop by drawing pests away from kale.
- Since they mature quickly, they can be harvested early without disrupting kale’s growth.
7. Nasturtiums
- These vibrant flowers attract aphids and cabbage worms, diverting them away from kale.
- They also encourage pollinators and beneficial insects to visit the garden.
8. Peas and Beans
- As nitrogen-fixing plants, legumes improve soil fertility, which helps kale grow strong and healthy.
- Their vertical growth allows kale to spread without competition for space.
Plants to Avoid Near Kale
1. Strawberries
- Strawberries can attract pests that also feed on kale, increasing the risk of damage.
2. Tomatoes, Peppers, and Eggplants
- These plants require a lot of nutrients and may compete with kale for essential resources.
3. Sunflowers
- Sunflowers can release compounds that slow the growth of nearby plants.
4. Other Brassicas (Cabbage, Broccoli, Cauliflower, Brussels Sprouts)
- Planting multiple brassicas together increases the risk of pest infestations and disease spread.
Tips for Growing Kale with Companion Plants
- Rotate crops each season to maintain soil health and prevent recurring pest problems.
- Use mulch around kale to retain moisture and keep weeds under control.
- Provide enough spacing to promote airflow and minimize disease risks.
- Regularly check for pests and encourage beneficial insects to keep them in check.
Conclusion
Companion planting with kale offers multiple benefits, from natural pest control to improved soil conditions. By selecting the right plant combinations, gardeners can create a thriving and well-balanced garden that supports healthy growth. With thoughtful planning, kale can flourish alongside a variety of beneficial plants, leading to a more abundant and sustainable harvest.