Radish Companion Plants: What Are The Best Companion Plants For Radishes
Radishes are one of the quickest producers, often garnering a crop in three to four weeks in spring. Later strains provide roots in six to eight weeks. These plants are tolerant of interplanting provided they are not shaded out by taller species. Many crops make excellent companion plants for radishes, filling in after the roots have been harvested. Installing plants that grow well with radishes can maximize use of the garden bed while harnessing the unique repellent properties of the pungent radish.
Plants That Grow Well With Radishes
Companion planting has been practiced for centuries and was a common Native American practice illustrated perfectly in the “three sisters” method of cropping where corn, squash, and beans were planted to support each other, enhance nitrogen, utilize space, and shade weeds. Each plant has something to offer the other and radish companion plants can fulfill the same needs. Planning is a key feature in intercropping where space, size, growing conditions, and nutrient needs are all considered for a seamlessly compatible garden. Due to the radish’s quick production and ability to be serial planted, other plants that grow more slowly and need a longer season to produce can be used to complete the garden bed. As long as the radish crop isn't severely shaded, these little roots will grow at the feet of many species of plants. Peas and leaf lettuces are started in early spring as soon as the soil is workable. This is also the time to sow radish seeds. The slower growth of the peas and lettuce allows radishes to develop without serious interruption, with harvest time well before the other two vegetables. Plants which will not be ready for many months, such as tomatoes and peppers, can also be intercropped with the earlier radish harvest.
Other Radish Companion Plants
Radishes will also help repel cucumber beetles, which means cucumbers, with their long growing season requirements, are also good companion plants for radishes. Plants that help radishes might be strong smelling herbs, nasturtium, and species in the allium family (such as onions). Pole beans and sweet peas, which rise high above the garden on stakes, help fix nitrogen in soil and enhance production while juicing up the soil for other high nitrogen feeders like lettuces. Be cautious when planting near brassicas (like broccoli), however, as radishes can attract flea beetles, which will damage this plant’s leaves. Hyssop is also not compatible with radishes.
Considerations for Radish Companion Planting
As you plan your garden and want to incorporate radishes, consider some issues. First, are the seeds spring, summer, or winter forms?
- Early season radishes will be best combined with early season vegetables or those that will not get too large in a few weeks to compete with the low growing roots.
- Summer varieties take longer to mature and should be installed where sunlight will reach them for up to eight weeks. This negates certain plants of the larger, long season crops as radish companions.
- Winter cultivars need a longer period as well but can be installed with late season plantings of spinach, kale, and other leaf crops.
Depending upon your season, you may also get another crop of the cool weather darlings such as snow and snap peas. Radishes also have attractive foliage in many cases and are useful in annual beds and borders as visual companions to flowers and herbs.
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Bonnie Grant is a professional landscaper with a Certification in Urban Gardening. She has been gardening and writing for 15 years. A former professional chef, she has a passion for edible landscaping.
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