Growing brussel sprouts can be a rewarding challenge. To get the best harvest, knowing about brussel sprouts companion plants is a smart first step. This guide will show you the optimal garden pairings to help your sprouts thrive with fewer pests and healthier growth.
Companion planting is like creating a supportive neighborhood for your vegetables. Some plants repel harmful insects, others attract beneficial ones, and a few even improve the soil. For brussel sprouts, which are part of the brassica family, choosing the right neighbors can make a huge difference in your garden’s success.
Brussel Sprouts Companion Plants
The best companions for your brussel sprouts fall into a few key categories. These include aromatic herbs, strong-scented flowers, and other vegetables that have mutually beneficial relationships. Let’s break down the top performers for you to plant nearby.
Top Companion Plants to Grow Alongside Brussel Sprouts
These plants are excellent partners for your brussel sprout patch.
* Aromatic Herbs: Dill, thyme, sage, and rosemary. Their strong scents help mask the smell of brussel sprouts, confusing pests like cabbage moths and flea beetles.
* Strong-Scented Flowers: Marigolds and nasturtiums are superstars. Marigolds deter nematodes in the soil, while nasturtiums act as a trap crop, luring aphids away from your sprouts.
* Alliums: Onions, garlic, and chives. Their pungent odor is a natural repellent for many common brassica pests, including cabbage loopers and aphids.
* Leafy Greens: Lettuce and spinach. These are shallow-rooted, so they don’t compete for nutrients with the deeper roots of brussel sprouts. They also provide a living mulch, keeping soil cool and moist.
* Root Vegetables: Beets and celery. Beets can help add minerals to the soil, and celery’s smell may deter the white cabbage butterfly.
Plants to Avoid Near Your Brussel Sprouts
Just as some plants help, others can hinder. Avoid planting these close to your brussel sprouts to prevent competition and disease.
* Other Brassicas: Avoid planting broccoli, cauliflower, kale, and cabbage too close. They compete for the same nutrients and attract the same pests, creating a magnet for problems.
* Strawberries: They are heavy feeders and can compete vigourously for nutrients. Some gardeners also believe they inhibit the growth of brassicas.
* Pole Beans: While bush beans can be fine, pole beans and brussel sprouts are generally considered incompatible. They may stunt each other’s growth.
* Tomatoes: They are also heavy feeders and can take nutrients away from your sprouts. Its best to give them their own space in the garden.
How to Plan Your Companion Planting Layout
Planning is key to making the most of these partnerships. Here’s a simple step-by-step approach.
1. Sketch Your Garden Bed. Draw a simple layout of your planting area. Remember, a full-grown brussel sprout plant needs about 18-24 inches of space on all sides.
2. Place Your Brussel Sprouts. Mark where each sprout plant will go in your sketch, spacing them properly.
3. Add Your Companions. Interplant your chosen companions in the spaces between. For example, plant a ring of marigolds around the bed’s edge, tuck some thyme between sprout plants, and border one side with lettuce.
4. Consider Succession Planting. As you harvest fast-growing companions like lettuce, you can replant with another friendly crop, such as beets for a fall harvest.
The Science Behind the Pairings: Pest Control and Soil Health
Companion planting works for several practical reasons. Understanding this can help you make better choices.
Natural Pest Deterrence
Many pests find their target plants by smell. Strong aromatic herbs and alliums overwhelm those scent trails. For example, planting garlic nearby makes it harder for the cabbage moth to find your sprouts. Nasturtiums work differently—their leaves are more appealing to aphids, so the pests attack them instead.
Attracting Beneficial Insects
Flowers like dill and marigolds attract predatory insects. Ladybugs, lacewings, and hoverflies feed on aphids and other small pests. By providing these good bugs with nectar and pollen, you encourage them to stay and patrol your garden, providing free pest control.
Improving Soil Conditions
Some plants, known as dynamic accumulators, pull nutrients from deep in the soil up to their leaves. When the leaves drop and decompose, those nutrients become available to nearby plants. While not a classic pair, understanding this principle allows for advanced garden planning in future seasons.
Common Problems and Companion Planting Solutions
Even with good companions, you might face issues. Here’s how your plant allies can help address specific challenges.
* Aphid Infestation: Increase plantings of nasturtiums (trap crop) and dill or yarrow to attract ladybugs.
* Cabbage Worms/Moths: Plant more rosemary, sage, or thyme to mask scents. Interplant with celery.
* Poor Growth: Ensure you are not planting with heavy feeders like tomatoes or strawberries. Instead, use light-feeding leafy greens as living mulch to conserve soil moisture and nutrients.
* Flea Beetles: The strong smell of garlic and onions can help deter these jumping pests from damaging young leaves.
Seasonal Companion Planting Tips
Your companion planting strategy can change with the seasons to maximize your garden’s output.
In early spring, when you transplant your brussel sprout seedlings, focus on quick-growing companions. Plant lettuce and spinach around them. They’ll be harvested before the sprouts need the full space.
By mid-summer, as the sprouts grow taller, your aromatic herbs and flowers should be well-established. This is when pest pressure is highest, so ensure your marigolds and nasturtiums are thriving.
For fall, after you have harvested the main sprout stalk, consider planting a cover crop like clover in the empty space. It will fix nitrogen in the soil, benefiting next year’s plants.
FAQ: Your Brussel Sprouts Companion Planting Questions
Q: Can I plant brussel sprouts next to tomatoes?
A: It’s not recommended. Both are heavy feeders and will compete for nutrients, potentially leading to weaker plants for both crops.
Q: What is the best flower to plant with brussel sprouts?
A: Marigolds are one of the best. They deter soil nematodes and their smell repels above-ground pests too.
Q: How close should I plant companion plants?
A: Plant them close enough to interact, but not so close they compete for light or root space. Often, planting in the same bed or within a foot or two of your sprouts is effective.
Q: Do brussel sprouts need a companion plant?
A: They don’t need them, but companions significantly reduce pest issues and can improve overall plant health, making your gardening easier and more productive.
Q: Can I plant peppers near brussel sprouts?
A: Peppers are generally considered neutral. They aren’t a harmful companion, but they also don’t provide the specific pest-repelling benefits that herbs and alliums do.
By choosing the right brussel sprouts companion plants, you create a balanced ecosystem in your garden. This approach leads to healthier plants, fewer pests, and a more bountiful harvest without relying on harsh chemicals. Start with a few pairings like marigolds and thyme, and observe the positive difference they make. Your brussel sprouts will thank you with tight, flavorful sprouts for your table.