Onions are scompatible with beets. They draw from different levels in the soil, so do not have to compete for nutrients. Some varieties of Onions and related alliums such as garlic help to suppress many fungal related plant diseases.
All Brassica plants which includes cabbage, broccoli, brussel sprouts, kale, cauliflower, kohlrabi are compatible with beets. Lettuce, although not actually a Brassica also goes well with beets. The leafy veggies benefit from the added magnesium provided by beets and there are no drawbacks for the beets.
|Growing Beets||Hydroponic Beets||Trouble Shooting Beets|
|Carrot Companions||Plant Nutrient Disorders||Tomato Companion Plants|
|Cucumber Companion Plants||Asparagus Companion Plants|