Possessing even limited knowledge about companion planting can go a long way in ensuring you have a productive and harmonious garden, because not all plants are compatible. Here are some combinations of plants to avoid in your garden:

Beans can hinder growth for plants in the onion and cabbage families, including broccoli, cauliflower, kale, chives and garlic.

Carrots and some herbs attract the same pests and can easily become overrun. Try growing your carrots alongside legumes and nightshades, such as tomatoes or peppers.

Kale and other vegetables from the cabbage family can stunt tomato growth. Plant kale with fragrant companion plants, such as mint or rosemary, to repel pests.

Asparagus and onions compete for the same resources. To avoid this, consider growing your asparagus alongside parsley or basil.

Rosemary is great for pollination but can release chemicals that limit or prevent the growth of cucumbers. Keep these two at a distance from each other.

Corn and tomatoes attract the same pests and compete for resources. However, corn and melons thrive together.
 
Lettuce won't grow well alongside onions or garlic, but can flourish with cabbage or broccoli.

Cauliflower grows poorly next to strawberries and prefers the companionship of onions and herbs.

Spinach can't compete with aggressive potato plants, but grows well with peas and strawberries.

By avoiding these plant combinations, you can ensure a bountiful harvest and a flourishing garden.