All varieties of peas and beans can be detrimental to onions. The same goes for sage and asparagus. Another bad onion neighbor is actually other onion plants. Onions frequently suffer from onion maggots, which can travel easily from plant to plant when they’re spaced close together.
What can you not grow near onions?
Do not plant onions with:
- Beans (both pole beans and bush beans), peas, and other legumes. Onions can kill the helpful bacteria that grows on bean, pea, and other legume roots, stunting the growth.
- Asparagus.
- Sage.
- Other onion family plants (garlic, leeks, shallots, chives, scallions).
Why can’t you plant onions next to potatoes?
Carrots, asparagus, fennel, turnip, onions, and sunflowers can stunt the growth and development of potato tubers. Potato plants also should not be planted in the same spot where eggplant, tomatoes, and anything in the nightshade family has previously been planted.
Why can’t you plant onions next to peas?
Plants in the allium (onion and garlic) family are not good partners for peas because they tend to stunt the growth of peas.
Can I plant onions anywhere?
Onions can be one of the easiest crops to grow. They have few major pest issues, don’t take up much room and can be grown anywhere in the garden where there is well-drained soil and full sun exposure. It’s not unusual for a home gardener to grow all of the onions they need for a year with relatively little effort.
What is the best companion plant for onions?
11 Companion Plants to Grow With Onions
- Cabbage. Onions will generally work best with Brassicas, members of the cabbage family.
- Chamomile.
- Summer savory.
- Carrots.
- Leeks.
- Beets.
- Lettuce.
- Strawberries.
Can I plant onions next to tomatoes?
Onions also work well alongside beets, Brassicas, carrots, dill, kohlrabi, leeks, lettuce, strawberries and tomatoes. Don’t plant onions near asparagus, or peas of any kind.
What should you not plant near potatoes?
Plants to Avoid Placing Near Potatoes Include:
- Tomatoes.
- Eggplants.
- Peppers.
- Cucumbers.
- Pumpkins/Squash.
- Onions.
- Fennel.
- Carrots.
How far apart to plant onions and potatoes?
At planting time, mix in some nitrogen fertilizer and, then, side dress every few weeks until bulbing begins. Plant sets or plants no more than 1” deep, 4” – 5” apart, and in rows 12” – 18” apart. Do not replace the soil around bulbs as they emerge.
What can you not plant next to tomatoes?
Companion Plants To Avoid Growing Near Tomatoes
- Brassicas. Cabbage, broccoli, cauliflower, kale, Brussels sprouts, and kohlrabi can stunt the growth of your tomato plant because they out-compete them for the same nutrients.
- Corn.
- Fennel.
- Dill.
- Potatoes.
- Eggplant.
- Walnuts.
Where should I plant onions in my garden?
Grow them in a sunny spot that has fertile, well-drained soil with a pH of 6.0 to 6.8. Improve your native soil by mixing in several inches of aged compost or other rich organic matter. Onions aren’t great at taking up water, so it’s important to keep soil moist so their shallow roots can drink up.
Should you mulch around onions?
It’s best to get your onions mulched as soon as possible after planting. It can be difficult to get the mulch around the small onion transplants. I find it easier to wait a couple of weeks until they get bigger and then mulch with a layer of marsh hay. You can also use straw, grass clippings, or leaves.
Can I plant onions next to cucumbers?
Radishes, beets, carrots, and onions: These root vegetables work well with cucumbers because they do not spread and compete for space; most of their growth occurs beneath the soil. Also, root vegetables and cucumbers both thrive in well-tilled soil.
How do I get my onions to grow bigger?
How do I get my onions to grow bigger?
- Choose the Right Variety. Onion varieties can be divided into three distinct categories: long-day, short-day and intermediate-day type onions.
- Plant on Time. Planting onions too late usually results in disappointingly small bulbs.
- Thin Plants.
- Control Weeds.
- Water and Fertilize.
Do onions need full sun?
Onions are one of the most popular vegetables in the home garden. They can be grown for green onions and dry bulbs. Onions are easy to grow. They perform best in well-drained, slightly acidic, fertile soils in full sun.
What month do you plant onion sets?
Sets are readily available in early spring and late summer in garden centres and from online suppliers. They are usually planted in spring, from mid-March to mid-April. Some cultivars are suitable for planting in October to mid March – these are less sensitive to cold, which would otherwise cause bolting.
What vegetables can you plant next to onions?
But when choosing which onions to grow, and where to place them in your garden, you need to think about what will grow well alongside them. You need to think about which plants can benefit them.
2. Brassicas
- Broccoli.
- Cabbages.
- Cauliflower.
- Kale/ Collards.
- Kohlrabi.
- Mustard.
- Pak choi (and other Asian greens)
What can you not plant with garlic and onions?
They are antagonistic to some garden plants because of chemical or flavor interactions. Avoid planting onions and garlic near beans, peas, sage and asparagus.
Can onions and peppers be planted together?
Onions. Onions don’t take up a lot of room above the ground, and are said to deter many common insect pests in the garden, such as aphids, slugs, and cabbage worms, making them a good companion plant for peppers.
What vegetables should not be planted together?
Other commonly believed plant incompatibilities include the following plants to avoid near one another:
- Mint and onions where asparagus is growing.
- Pole beans and mustard near beets.
- Anise and dill neighboring carrots.
- Cucumber, pumpkin, radish, sunflower, squash, or tomatoes close to potato hills.
Why should you not plant cucumbers near tomatoes?
Both tomatoes and cucumbers do not grow well when planted near potatoes as they crave the same nutrients and compete for them. Also, they may be susceptible to similar diseases. For example, the cucumber mosaic virus attacks both cucumbers and tomatoes causing a significant reduction in fruit production.