A garden is like a group. While some members may live peacefully next to one another, others will demand their own space. They can even steal valuable nutrients from neighbors. It is important that your companion plants co-exist happily. These are some plants that won’t get along with other plants.
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Beans and Onions
Allelopathic plants are beans that produce biochemicals that can inhibit the growth of other plants. Beans are not compatible with onion family members like leek, chives, garlic, and chives. Carrots and beans complement each other by providing nutrients that promote growth. The ladybugs that are attracted to carrots help keep aphids away from beans.
Corn and tomatoes
If tomatoes and corn are planted together, they will fight for soil nutrients. Tomato hornworms and some types of fungus love tomatoes and corn, so it is important to separate them. This will prevent mass extinction. Tomatoes don’t like potatoes or cabbage. Pair with lettuce instead. This will shade the soil and keep it moist for water-loving tomatoes.
Sunflowers and potatoes
Both grow deep while the other grows high. They don’t get along, however, because sunflower seeds contain toxic ingredients that stop potatoes growing fully. Plant spinach to harvest early around the potato hills before soil mounding is necessary.
Asparagus and Garlic
Both plants are incompatible. Asparagus is dependent on nutrients from the soil. It is best to give asparagus its own place with no other plants. If you have to give it a friend though, consider parsley or dill.
Celery and Carrots
They are often paired together on a vegetable platter. However, these plants should not be planted in the same area. To keep the soil moist, both plants need to be given water and shade. As a companion to celery you can use thyme to smother weeds, and moisten the soil.
Fennel and Eggplant
Eggplant is a nightshade member, and fennel has a chemical that slows down nightshade growth. Bush beans are a better companion for eggplant. The nitrogen added by the bush beans to the soil is a favorite of eggplant. The Colorado potato beetle loves eggplant and the bush bean repels it.
Rosemary and Cucumber
Cucumbers can be influenced by strong herbs. Keep rosemary, basil, and sage in your kitchen until you make a delicious salad. A trellis will allow cucumbers to grow, as it helps prevent them from rotting in moist soil.
Lettuce and Garlic
Poor garlic can hinder many plants. It also produces chemicals that wilt lettuce. Garlic’s cousins onion, leeks, and chives should be kept away from lettuce. Instead, plant lettuce near the power pair of carrots or radishes. The root crops won’t be affected by the shallow roots of quickly-growing lettuce.
Both root crops prefer the same conditions but are both susceptible to the carrot root fly. It is best to give each plant its own space and keep them away from one another. Because the little round radish grows fast, both plants would prefer to be grouped together with radishes. After the radishes have been pulled, there will be room for the longer-growing carrots or parsnips to grow.
Pumpkins and Summer squash
Pumpkins can be very aggressive in the garden. Summer squash like zucchini can be choked by pumpkins. Cross-pollination with other squash varieties can also affect your harvest. Pumpkins love to climb up the corn stalks and sprawl. They are harvested at different times so that they don’t compete with each other for water in the summer.