What is Companion Planting?Companion planting is the planting of specific plants in the proximity of each other to increase the success of each one. This includes plants that benefit from sharing space, plants that can deter pests from other plants, plants that work together to attract beneficial insects, and plants that are good at conserving water.
The most well-known example of companion planting, called the Three Sisters, was done by Native Americans. Squash, corn, and beans planted in hills together are the perfect complement. The tall corn stalks provide a structure for the pole beans to climb. The beans provide nitrogen and other vital nutrients to the soil. The large squash leaves create a canopy over the ground, preventing weeds from growing and maintaining soil moisture.
Why Companion Plant?There are as many reasons to implement companion planting as there are variations of companion planting. It all depends on what you want to do. Do you want to repel specific bugs? Or attract beneficial bugs? Keep your weeds to a minimum? Conserve space in your garden? With some planning and careful arranging of your fruits, vegetables, and flowers, all these things are possible.
Keeping your garden safe from the myriad of bugs who would love to feast on all your hard work is a top priority. It is devastating to see vegetables growing steadily only to be attacked by a bunch of beetles until there is nothing left. Planting certain vegetables together can keep these pests at bay.
- Tomatoes – plant basil with your tomatoes to prevent horn-worms
- Potatoes – horseradish and cilantro to deter the Colorado potato beetle
- Carrots – chives will repel carrot aphids, onions will keep away rust flies
- Asparagus – parsley, basil, and tomatoes will deter asparagus beetles
- Cucumbers – nasturtiums and radishes repel cucumber beetles.
- Squash – dill, and peppermint will repel squash bugs
- Cabbage – dill repels the cabbage looper, radishes deter the cabbage maggot, thyme deters the cabbage moth
- Beans (bush & pole) – marigolds and potatoes help keep away the Mexican bean beetle; catnip deters flea beetles.
To repel flies and mosquitoes, plant basil, chamomile, lavender, lemon balm. To deter slugs and snails, plant fennel.
Another way to repel pests is to attract them using a method called trap-cropping. In this method, you plant a crop that lures the pesky insects so they'll keep away from your preferred crop. This generally works best if you can plant the trap crop around the outside of your garden, so the pests encounter it before they get to the one you care about.
Attract Beneficial InsectsPollen and nectar are what attract insects. Plants that are high in both of these will see your beneficial insect population grow. There are two types of beneficial insects: pollinators (butterflies and bees) and predators (ladybugs and wasps).
Flowers that attract beneficial insects are zinnias, asters, marigolds, and sunflowers. Herbs that attract beneficial insects are dill, anise, coriander, fennel, borage, chives, lavender, parsley, rosemary, lemon balm, mint.
Make The Best Use of Garden Space
Some plants are tall, some are short, some enjoy the shade, and some want direct sunlight all the time. This can be used to your advantage when planning your garden, especially if you are tight on space.
Sunflowers and cucumbers are great for this. Cucumbers planted underneath the tall sunflowers enjoy the light shade and produce higher yields for it. The sunflowers benefit because the cucumber plants keep moisture in the soil.
Lettuce can also benefit from being planted beneath a tall plant, like tomatoes or peppers, as it likes to have some shade during the day.
The broad leaves of squash plants keep the sun off the ground, creating a micro-climate that helps retain moisture. Other vegetables planted with the squash will also benefit from the richer, moister soil.
Planting vegetables together that require a lot of water, like tomatoes, melons, and corn will cut down on how much water you will need. Instead of heavily watering three different sections of your garden, you can get them all in one and therefore use less.
No one likes to weed, so any way to minimize this chore is beneficial. There are two main ways to cut back on weeds through companion planting.
Inter-cropping is planting two crops in the same space simultaneously, usually using the area between the first plants to put the second set. Sequential cropping is planting crops one after another, so there is not ever any bare ground. Both these methods work wonders in keeping the weeds at bay.
Planting just one variety of crop makes your garden especially vulnerable to pests and disease. If there is only one crop and it gets sick, your whole crop will succumb. A variety of plants is the best way to ensure your garden is protected from complete devastation. With the variation companion planting provides, diseases cannot establish themselves fully, and bugs struggle to have a considerable impact.
Companion planting has a myriad of benefits for your garden. It can keep the good bugs in and the nasty bugs out. It can help you convert a small gardening spot into a larger yielding space and reduce weeds, diseases, and infestations. Planning a garden using companion planting methods takes more time initially; however, you will be thankful when you don't have aphids, carrot flies, horn-worms, and other pests to deal with as you progress through the season. A little more effort, in the beginning, can make a massive difference in the success of your crops; it's worth it.