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When I started gardening 3 years ago, I started with very limited knowledge I picked up from my dad who is a keen gardener. Gardening is a lifetime-long learning process: you can pick up a lot from books and watching videos, but over half of my gardening knowledge is coming from learning from what went well or wrong in the previous years. This is how I learned about companion planting too. I’ve read about it, then I tried a few things that year, observed what happened, added some more next year and worked out few more additions the year after. It’s all trial and error with gardening, isn’t it?
The idea of companion planting is as old as humanity – ever since people produce crops rather than hunting and gathering. It’s one of the oldest gardening techniques, that maximizes your gardening efforts and benefits by simply planting plants near each other. Companion planting involves planting two or more plants together to form a plant association from which both or all plants benefit. Gardeners have noticed these patterns for centuries, and using them can help to cultivate a garden without a lot of extra effort. If you’re a beginner gardener or just looking to simplify your planting strategy, there are numerous easy-to-grow companion plants that can help you to be more successful with your gardening efforts. In this article, we’ll explore several combinations of plants that work well together.
What is Companion Planting?
At its core, companion planting is based on the natural relationships between different plants. Certain plants can help each other’s growth and survival through beneficial interactions, such as nutrient sharing and pest deterrence. For instance, some plants can repel unwanted insects, while others can attract pollinators or beneficial bugs that take care of pests. By understanding and strategically employing these relationships, you can create a more productive and resilient garden.
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The Benefits of Companion Planting
Pest Control
Some plants naturally repel pests that can harm your crops: they have a naturally strong scent that confuses and deter pests. Some not just repel but act as trap crops: aphids, beetles, and worms love them – like some flowers. Other ones can even act as a visual repellent: most flying pests often locate their host plants by sight. Plant them near your vegetables, and watch the attraction in work. This reduces the need for chemical pest control, making your garden healthier and more sustainable.
Healthy Growth
Certain plant combinations can enhance growth. For example, specific herbs can stimulate the growth of nearby vegetables or fruits. Another example is nitrogen rich soil through a natural process involving bacteria some plants can produce in their roots. Therefore the nearby plants can benefit from this extra nitrogen.
Nutrient Utilization
Different plants have varying root depths, nutrient requirements and so they gather nutrients from different depths in the soil. Combining deep-rooted and shallow-rooted plants ensures that more of the available nutrients are used.
Pollination
Attracting pollinators to your garden can significantly improve fruit set and overall yield. Companion plants like flowers can encourage beneficial insects to visit your vegetable patch.
Improved Soil Health
Last but not least: companion planting also helps to maintain a healthy and fertile soil. This can happen because of the difference in root structure or the added benefit of extra nitrogen for example, as mentioned above.
Space Efficiency
There is never enough space in the garden, I find. So many things to grow! Using vertical and trailing plants together can maximize space in small gardens, allowing you to grow more in less area. Another example for space efficiency is using taller crops that can act as natural shelter to other plants that prefer some shade instead of direct heat of the sun.
Easy-to-Grow Companion Plant Combinations
Tomatoes and Basil
One of the best-known companion planting combinations is tomatoes and basil. Basil not only enhances the flavor of tomatoes but also helps deter whiteflies and aphids. Plant basil in between your tomato plants, and you’ll reap the benefits of both a delicious herb and healthier tomatoes. Plus, in many Mediterranean dishes they go hand-in-hand!
Carrots and Onions
Carrots and onions are a fantastic duo. The strong scent of onions helps mask the smell of carrots, deterring pests that might otherwise be drawn to them. Additionally, both plants have different nutrient demands, making them perfect companions in the garden.
Beans, Corn and Squash
Aka The Three Sisters. Beans, particularly pole beans, are excellent companions for corn. The beans climb up the corn stalks, helping to provide natural support, while fixing nitrogen in the soil, which benefits the corn. In returning the favor, corn provides the structure beans need to elevate themselves, maximizing space and resources. The squash spreads across the ground, its large leaves shading the soil to retain moisture and suppress weeds.
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Spinach and Strawberries
Spinach and strawberries form an ideal partnership. Strawberries create ground cover, which helps suppress weeds, while spinach can thrive in the partial shade created by strawberry plants. Furthermore, spinach can be harvested early in the season, allowing strawberries to flourish without competition later.
Cabbage and Dill
Dill is a great companion for cabbage and other brassicas. Not only does dill attract beneficial insects like lacewings and parasitic wasps, which prey on pests, but it also offers a flavor enhancement for the cabbage family. Just remember to space them properly, as dill can grow quite tall.
Potatoes and Horseradish
Potatoes and horseradish team up for pest defence. Simply plant horseradish at the ends of potato rows.
Marigolds and Almost Anything!
Marigolds are a gardener’s best friend. These bright flowers have pest-repelling properties due to their strong scent. They work wonderfully with tomatoes, peppers, and many other veggies. Planting marigolds throughout your garden can help safeguard crops from nematodes and aphids.
Radishes and Squash
Radishes grow quickly and can be a great trap crop for certain pests that might attack squash plants. By the time the squash plants begin to grow, the radishes will have matured and can be harvested, reducing pest pressure on the more vulnerable squash.
Lettuce and Beets
Lettuce and beets are excellent companions due to their different growth habits. Lettuce has a shallow rooting system, while beets grow deeper, allowing them to share resources efficiently. Also, harvesting lettuce early in the season means there’s minimal competition for nutrients as beet roots develop.
Pepper and Chives
Chives can repel aphids and slugs that can attack pepper plants. Peppers growing amongst chives are likely to be stronger, juicier,thanks to the allium’s protective fragrance.
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Broccoli and Celery
Celery repels cabbage moths and aphids and in return broccoli provides some shade for celery in summer. They both need moist soil.
Tips for Successful Companion Planting
Research Plant Compatibility
Before choosing plants to grow together, do some research to ensure they are compatible. Some plants may compete for nutrients or space, defeating the purpose of companion planting.
Observe Conditions
Pay attention to the light and water requirements for each plant. Group plants that have similar needs to ensure they thrive together.
Practice Crop Rotation
Rotating plant families each season helps reduce the buildup of pests and diseases that can occur with repetitive planting.
Start Small
If you’re new to companion planting, start with a few combinations in a small area of your garden. This allows you to learn and observe the interactions without overwhelming yourself.