The best companion plants for rutabagas are peas, onions, garlic, and nasturtiums. Each of these garden helpers solves a different problem for you, from pest control to soil feeding. Picking the right neighbors for your rutabaga rows can cut your pest issues in half and boost your root size at the same time.
If you have been asking what to plant with rutabagas, the answer starts with nasturtiums. When I first tried this pairing, I planted a row of bright orange nasturtiums at each end of my rutabaga bed. Within two weeks, the aphids moved off my rutabaga leaves and piled onto the nasturtium stems. I could see hundreds of tiny green bugs on the trap crop flowers. My rutabaga foliage stayed clean and healthy the whole time. That one simple move saved me from spraying anything on my food crop all season long.
Each companion works through a different method in the soil or air around your rutabagas. Peas pull nitrogen from the air and fix it into the soil through small nodules on their roots. Your rutabagas feed on that free nitrogen to grow bigger and stronger roots. Onions and garlic give off a sharp scent that confuses flea beetles and keeps them from landing on your young plants. These alliums act like a living shield around your crop without any chemicals needed from you at all.
Nasturtiums as Trap Crops
- Pest magnet: Aphids prefer nasturtium leaves over your rutabaga foliage, so they serve as one of the best trap crops for rutabagas you can grow.
- Easy to grow: Sow seeds right at the ends of your rows and they sprout fast with no special care needed from you.
- Bonus harvest: You can eat nasturtium flowers and leaves in your salads for a peppery kick while they protect your roots.
Peas for Soil Feeding
- Free nitrogen: Pea roots form nodules that pull nitrogen from the air and store it in your soil where rutabagas can reach it.
- Trellis placement: Grow your peas on a short trellis 2 to 3 feet (60 to 90 centimeters) from the rutabaga bed for best effect.
- Timing fit: Spring peas finish before fall rutabagas need the space, so they share your garden plan with no conflict.
Onions and Garlic
- Flea beetle shield: Their strong scent masks your rutabaga plants and confuses pests that hunt by smell in the garden.
- Row spacing: Plant garlic or onion sets between your rutabaga rows with about 6 inches (15 centimeters) of space between them.
- Double harvest: You get two crops from the same bed space, which makes your garden much more productive per square foot.
Your rutabaga companion planting plan should also list the plants to keep far away. Other brassicas like broccoli, cabbage, and kale compete for the same soil nutrients. They also share diseases like clubroot with your rutabagas. Growing these crops side by side doubles your disease risk. It also splits the soil food supply between too many hungry mouths in the same garden bed.
I tested this layout in my own garden and it gave me the cleanest harvest I have had in years. Put nasturtiums at the row ends to catch your aphids first. Tuck garlic or onion sets between your rutabaga rows to block flea beetles by scent. Grow peas on a trellis a few feet away where their root nodules can feed the shared soil. This setup gives each plant room to do its job while your rutabagas grow fat and pest-free in the middle of it all. You can copy this plan into any raised bed or in-ground plot and see results in your very first season of trying it.
Read the full article: Growing Rutabagas at Home
