These factors include sun exposure, weather, ecology, pollinators, insect population, soil structure and chemistry, and water supply.West Coast Seeds has conducted significant research into these companion planting guidelines and has defined the best possible results and reasons for each of our recommendations.Minimizing Risk: Companion planting increases odds of higher yields even if one crop fails or is affected by natural hardships like weather, pests, or disease.Ammi - This beautiful flower attracts lacewings, ladybird beetles, and parasitic wasps.Basil helps repel aphids, asparagus beetles, mites, flies, mosquitoes, and tomato horn worm.Plant with Brassicas, carrots, celery, chard, corn, cucumber, eggplant, peas, potatoes, radish, and strawberries.Plant with bush beans, Brassicas, corn, garlic, kohlrabi, leeks, lettuce, and mint.Brassicas (broccoli, Brussels sprouts, cabbage, cauliflower, collards, kale, kohlrabi, turnip) – All benefit from chamomile, dill, mint, rosemary, and sage.Buckwheat – Fixes calcium in the soil, and makes an exceptionally good green manure plant.Calendula – Repels a number of unwanted soil nematodes and asparagus beetles, but may attract slugs.Calendula attracts a wide range of pollinators because it provides nectar over the whole growing season.Celery – Good partner for beans, Brassicas, cucumber, garlic, leek, lettuce, onion, and tomatoes.Amaranth makes a great mulch between rows by competing with weeds and conserving ground moisture.Cosmos can be direct sown from early March to the end of June in our region so that it blooms continuously throughout the summer.Cucumber – Plant beside asparagus, beans, Brassicas, celery, corn, dill, kohlrabi, lettuce, onion, peas, radish, and tomatoes.Dill attracts ladybird beetles, parasitoid wasps, hoverflies, bees, and garden spiders, making it one of the most useful companion planting candidates.Echinacea - These perennial coneflowers attract hoverflies and parasitoid wasps, so they're useful for pest control in companion plantings.Eggplant – A good companion for amaranth, beans, marigolds, peas, peppers, spinach, and thyme.Fennel attracts hoverflies, ladybird beetles, parasitic wasps, and tachinid flies, so it's a kind of beneficial insect magnet.Gaillardia - This flower blooms over a very long period in summer, providing a rich source of nectar for a host of pollinators.Because of its sulfur compounds, it may also help repel whiteflies, Japanese beetles, root maggots, carrot rust fly, and other pests.Garlic, made into a tea, or spray, will act as a systemic pesticide, drawing up into the cells of the plants.It’s a good companion for beets, Brassicas, celery, lettuce, potatoes, strawberries, and tomatoes.Iberis - This early flowering plant provides nectar for pollinators before many others, and it attracts hoverflies and ground beetles.Lettuce – Good companions for beets, Brassicas, carrot, celery, chervil, cucumbers, dill, garlic, onions, radish, spinach, squash, and strawberries.Melon – Great companions for corn, marigolds, nasturtiums, pumpkin, radish, squash, and sunflowers.Onions also work well alongside beets, Brassicas, carrots, dill, kohlrabi, leeks, lettuce, strawberries and tomatoes.Peas – Superb companions for beans, carrots, celery, corn, cucumber, eggplant, parsley, peppers.Phacelia — An essential element in any organic gardener's toolkit, this multi-purpose annual flower is fast to mature, and amazingly attractive to a host of pollinators and beneficial insects.Notably, it attracts bees and predatory hoverflies to improve pollination and combat pest insects.Plant Phacelia around any crop showing poor pollination, particularly squash (including zucchini and pumpkin), melons, and cucumbers.Avoid planting potatoes near asparagus, Brassicas, carrots, cucumber, kohlrabi, melons, parsnips, rutabaga, squash, sunflower, and turnips.Rosemary repels cabbage moths, Mexican bean beetles, and carrot rust flies.Spinach – A good companion for Brassicas, eggplants, leeks, lettuce, peas, radish, and strawberries, particularly.Couple them with beans, borage, garlic, lettuce, onions, peas, spinach, and thyme.Sunflowers are attractive to a host of wild and domestic bees, and also ladybird beetles, which prey on aphids.Tithonia - Plant this so-called Mexican Torch to attract parasitoid wasps, parasitic flies, and soldier bugs to your garden.Tomatoes – Another sensitive plant when it comes to companions, tomatoes benefit from asparagus, basil, beans, borage, carrots, celery, chives, collards, cucumber, garlic, lettuce, marigold, mint, nasturtium, onion, parsley, and peppers.Yarrow – Its scent repels aphids, but attracts hoverflies, lady beetles, and wasps that prey on garden grubs.The leaves and stems of yarrow contain enzymes that break down rapidly, so it can be added to the compost raw or as a tea to accelerate the heap.Damp, acidic soil can host club root (for example), which can be a real problem for broccoli and Brussels sprouts.Please feel free to contact us for clarification at [email protected] westcoastseeds.com, and we will do our best to bring better depth to our guides so that all of our customers can benefit. .
Companion Planting For Beets • Insteading
This guide will teach you all about companion planting for beets including what plants are best, how to grow beets, and beet varieties to consider for your garden.Consider these plants when companion planting for beets.Lettuce has very shallow roots and does not compete with the development of root crops.Common Companion Plants for Beets.Beets (Beta vulgaris) are a fast-growing, easily cultivated, edible root crop in the same family as Swiss chard.Beets can be baked, roasted, boiled, steamed, or pickled.Some of the best companion plants for beets are members of the cabbage family.Brussels sprouts, cauliflower, broccoli, cabbage, and kale do well when planted with beets.Garlic, Onions, And Leeks Repel Pests That Prey On Beets.Garlic and all members of the onion family are protective companions for beets.They repel many common pests.Japanese beetles, snails, gophers, moles, root maggots, and coddling moths are naturally detoured by the pungent scent of garlic bulbs, onions, scallions, and leeks.Many experienced gardeners mention that planting garlic with beets improves beet flavor.Soybeans, butter beans, and bush beans are ideal companion plants for beets.These types of beans enrich the nutrient content of the soil with generous amounts of nitrogen, leaving garden soil rich in this important nutrient for cultivating the next crop.Mint does double duty: it also improves the flavor of cabbage, a boon companion plant for beets.What Not to Plant With Beets.While cabbage, herbs, and garlic are great solutions for companion planting for beets, there are a couple of plants you should avoid planting near beets.Pole beans should be avoided as they stunt beet’s growth.Beets: One Of The Easiest Vegetables To Grow.To retain soil moisture, cover seeds with mulch until seeds sprout and poke through the soil.During long, hot summer days, continued mulching keeps soil cool and moist.Because beets develop a portion of the root above the soil level, seeds do not have to be planted deeply.Cover them with an inch of soil.To avoid deformed beetroots, keep the area free of weeds.Like other root crops, beets store well.You can start harvesting beet greens when the plant is six to eight inches tall.You can start harvesting beetroots when the orbs are about two inches in diameter. .
30 Potato Companion Plants And 8 Plants To Never Grow With
Potatoes are generally a relatively easy (though space consuming) crop to grow.Earth up potatoes with high quality compost and mulch well with organic matter (such as seaweed, comfrey leaves etc..).Instead, choose companion plants for potatoes, to create polycultures or guilds around them to help them grow strong.In that article, you’ll find out more about how and why we use companion plants and create polycultures in an organic garden.While these claims have little scientific backing, there is a wealth of anecdotal evidence from gardeners and growers who swear to its efficacy.There is also some evidence to suggest that incorporating the organic material from horseradish plants into the soil around potatoes can, in certain circumstances, have pest controlling characteristics.It is the compound allyl isothiocyanate found in the plant which is said to have pest repelling properties.(Note, however, that horseradish is a member of the brassica plant family and can harbor common brassica pests, so should not be grown close to cabbages, kale, broccoli or other members of this plant family.).The pungent aroma of the garlic is said to repel certain species, and to confuse or distract others, making the primary plants in the bed more difficult for pests to find.Intercropping potatoes with garlic was also found to be more effective than fungicidal treatments for the control of late blight in this study.Again, the strong smell of this allium may help to reduce insect damage on your potato plants.Scallions, green onions or spring onions are an allium that could be particularly useful for growing alongside potatoes in a home setting, because they are small and can easily be incorporated between rows of potatoes being earthed up in a traditional way, and along the edges of growing areas.Note, however, that alliums are believed to suppress the growth of legumes such as peas and beans.Studies have suggested that yield on a certain area of land can be increased by intercropping of these two plants.In a warm climate, during hot summer weather, pea crops planted to provide shade to potatoes may also have a benefit, since the increased shade will reduce moisture loss from the soil and aid the potato crop, which requires relatively high levels of water.Studies into intercropping of beans and potatoes have shown that in certain circumstances, overall yield can be increased on a given area of land by planting the two together.Spinach is another example of a leafy green with shallow roots that can be sown around your potatoes early in the season.Sowing lettuce, spinach and other similar leafy greens will help you to make the most of the space you have available.Another benefit of sowing leafy greens like lettuce and spinach around young potato plants is that they can help to create good ground cover, which is another way to reduce moisture loss.It can also help to reduce the incidence of weeds that may compete for nutrients with your potato plants.So again, you can enjoy a harvest from between your potato plants before they grow to fill the space and require the room and nutrients available.Radishes can also help the potatoes and the leafy greens planted alongside them by repelling flea beetles.Even better, harvest some thyme leaves ad sprinkle on your roast potatoes for a delicious flavor combo.Yarrow also attracts a range of beneficial insects, and its deep roots mean that it can be an effective dynamic accumulator.Yarrow grown as a companion alongside other aromatic herbs can also help increase their essential oil production, which can boost their pest-repelling or confusing properties.Grown alongside other companion herbs, chamomile also increases their oil production.It also attracts a range of beneficial insects, including hoverflies and predatory wasps.Some gardeners swear that catmint is one plant that can help to deter potato beetles, for example.Tansy is another herb that may help keep potato beetles at bay.It is also especially good at attracting beneficial insects such as bees and other pollinators, as well as certain wasps and beetles.Finally, it is also a good idea to think about the flowers that it is beneficial to grow alongside potatoes.Largely for its wildlife attracting properties, calendula can also be a great choice for potato polycultures.More commonly, you will use them as companions for cucurbits such as cucumbers and squash, or other summer crops like tomatoes.It can be beneficial in a forest garden or fruit tree guild, or in an annual vegetable plot.These pungent, sweet smelling flowers may protect potatoes from certain pests such as leafhoppers.These flowers not only look pretty, and help retain soil moisture, they are also excellent at attracting predatory wasps that eat insect pests that might plague your potatoes.It can also help potatoes by providing good ground cover around the plants during the warmth of summer.When in flower, both white and red clover varieties attract pollinators but also a range of other beneficial insects.Vetch is another nitrogen fixing plant and, again, you can intercrop it with potatoes or use it to create good ground cover.Dead nettles may improve the taste and vigour of potato plants growing nearby and might also help in repelling certain pests.Since horseradish is such a good companion for potatoes, many other brassicas (members of the cabbage family) are often recommended for growth alongside them.But while this plant family is often recommended for growth alongside potatoes, it is not really a good idea.The primary reason why it is not a good idea to include brassicas and potatoes in the same growing area is that they do not enjoy the same conditions.The mulches you choose for these plants can be used to influence this factor, and help to prevent problems such as root knot in brassicas and scab in potatoes.The problem will growing potatoes close to or with other members of this family is that pests and diseases spread easily between them.Try to keep a good crop rotation system in play when it comes to this plant family.But the main issue is that asparagus, as a perennial crop, has an extensive root formation that will be damaged by the earth movement required in potato growing and harvesting.Sunflowers can have allelopathic effect, which means they excrete chemicals which can inhibit seed germination and stunt the growth of certain other crops grown close by.It is important to remember, when planning your garden, that companion planting is by no means an exact science.In order to further help you to come up with successful guilds in your garden, here are examples of the potato polycultures that work well for me where I live:.Once the potatoes are ready for harvest, the peas and beans are chopped, leaving the roots in place. .
The Complete Companion Planting Guide
As the home gardening sector continues to grow, different green-thumbed individuals are coming up with all kinds of new methods, including this innovative technique.This article will provide you with some of the ‘need to know’ details that you should follow to become an expert companion planting gardener.It has been defined as planting two or more crop species together to achieve benefits such as higher yields and pest control.In many situations, they are created from oral tradition, front porch musings and family recommendations.It allows you to grow herbs, veggies and exotic crops to their full potential.Summer cornfields are easily converted into fields of pumpkins in the autumn.In the past, the First Nations people of North America planted pumpkins together with pole and corn beans in a method called the ‘Three Sisters.'.The pumpkins create a dense ground cover to stop the spread of weeds and keep away harmful pests.Pumpkins also function best as a row type of crop when planted together with sunflowers.Consider using sweet marjoram in your gardens and beds to make your herbs and vegetables sweeter!Similarly, harvesting them to make a lovely salad is easy because they are located next to each other.Companion planting is a traditional art that needs a lot of planning, but this is worth it, as it will help you have a good harvest.Here, the bean seeds feed the corn with nitrogen and provide shade for the roots.If you want to plant potatoes, beans, and corn, then you don’t have to use up a considerable portion of your garden.Companion planting assists in pollination and controlling pests and helps you make the best use of your gardening space.This means that you’ll probably find large tracts of fields containing only a single crop.Apparently, it’s easier to water and care for the plants in such a system, but you’d have to use many chemicals to control the pests.They improve the flavour of tomatoes and lettuce and repel bugs such as mosquitoes.Here is an architectural type of plant that offers shade and form to your vegetable plot.You can grow it together with broccoli, beans, cabbage, lettuce, onions and brassicas, and passion fruits.Cabbage is a common vegetable that adds a great taste to your food and improves digestion.Carrots are another beautiful vegetable that is recommended to people suffering from eyesight problems.To get the best out of your carrot plantation, you can grow them with other vegetables such as leeks, onions, tomatoes, and alliums.Grow it together with other herbs such as brassicas, cucumbers and bush beans to get high yields.Here are good examples of broccoli, carrots, lettuce, cucumbers, peppers, passion fruit, and cabbage.This type of vegetable requires high levels of nitrogen in the soil.Here, it’s important to remember the role peas plants play in adding nitrogen into the soil.All these companion plants help in producing high yields and adding a great taste to your crop!They both produce large green leaves that can be added to salads and a variety of tasty recipes.You can grow your spinach and Swiss chard together with passion fruit, cauliflower, and brassicas.Companion Plants Apricot Chives, garlic, leeks, nasturtium, and daffodils Aubergines Potatoes and tomatoes Blackberries Strawberries, pine trees, oak trees, yarrow and dewberries Cape Gooseberries Yarrow, pine and oak trees Cucumber Beans and peas Figs Lemon balm, dandelions, borage, mustards, marigold Grapes Chives, geraniums, mustards, oregano, peas, clover and blackberries.Kiwi Fruit Carrots, swiss chard, carrots, spinach Melon Pigweed, chamomile, summer savoury, sow thistle Citrus Fruits Yarrow, dill, fennel and lemon balm Peach Basil, tansy, southernwood Peppers and chillis Alliums, basil Pineapples Clover, chives, garlic, southernwood, daffodils Raspberries Tansy Squash Corn, beans, okra Strawberries Bush beans, lettuce, onions, passion fruits and spinach Sweetcorn Squash, pumpkins, pole beans Tomatoes Cabbage, broccoli, roses, peppers, asparagus.Companions Coffee plant Potatoes, kale, beans Ginger Spinach, carrots, eggplants, spinach, eggplants Grapefruit Thyme, yarrow, companion dill, borage, calendula and cosmos Lemongrass Peppers and tomatoes Olives Thyme, borage, calendula, wormwood Pomegranate Basil, thyme, summer savoury Tea Beans, potatoes and peas Vanilla Banana plants and arrowroots (plants that can provide good shade).Companion Plants Basil Tomato, oregano, pepper, petunias, grapes Chamomile Most herbs, cucumber, onion, cabbage Chervil Radish, broccoli, lettuce Chives Roses, apples, carrots and grapes Cumin Cucumbers, potatoes, cabbages Curry leaves Tomatoes, onions and garlic Comfrey Nutrient accumulators or mulch Coriander Chervil, anise, cabbages and carrots Dill Coriander, cabbages, carrots and anise Lavender Lettuce, onions, tomatoes, oregano, sage, rosemary, basil, lemon Lemon balm Eggplant Mint Eggplant, lettuce, peas, broccoli Mustard Carrots, corn, cucumbers Mizuna and Mibuna Beetroot and beans Oregano Peppers, pumpkin, grapes Parsley Apple, asparagus, corn, tomatoes Rosemary Beans, brassicas, and carrots Saffron Sea holly, lanceolate leaves and Chinese chives Sage Rosemary, cabbages, beans Sorrel Strawberries, cabbage and tomatoes Tarragon Eggplants and most vegetables Thyme Cabbage, potato, strawberries and Brussels sprouts Yarrow Aromatic plants.Companion Plants Antirrhinum Grapes and lettuce Azalea Kalmia latifolia, pieris japonica Borage Squash, tomatoes and strawberries Calendula Mint and sage Canna Strawberries Celosia Petunia, ageratum and marigold Dahlia Agapanthus, alstroemeria, anthemis tinctoria Fuchsia Torenia and begonias Marigolds Pepper, gourds, roses, alliums, brassicas, zucchini Maurandya Lavender, wormwood, sage, thyme Menconopsis Cimicifuga, variegated Solomon’s seal and under ferns Nasturtium Beans, brassicas, cucumbers, fruit trees and tomatoes Pelargonium Marigolds, lavender, geraniums and yarrow Sunflower Squash and cucumber Sweet Peas Alyssum.Bad Companion Plants Artichoke Beans and peas Asparagus Onion, potatoes and garlic Beetroot Runner or pole beans Broadbeans Fennel, soybeans and dry beans Brocolli and Calabrese Peppers, beans, strawberries Brussel Sprouts Mustards, nightshades Cabbage Grapes Carrots Dill, parsnip and radish Cauliflower Dill, parsnip and radishes Celeriac Aster flowers and corn Courgette Corn and aster flowers Fennel Almost everything French beans Fennel soybeans Garlic Cabbages and grapes Kale Peppers Kohlrabi Pole beans Leeks Swiss chard Lettuce Cabbage, celery, parsley Mushrooms All plants with small leaves as they do not provide good shade Onion Peas and lentils Pak Choi Peas Parsnip Lettuce, onions, carrots Peas and Mange Tout Pak Choi, onions, peppers Potatoes Carrot, cucumber, pumpkin Radish Grapes Runner Beans Celery, grapes Shallots Grapes, celery, peppers Spinach and Swiss Chard Leeks and strawberries Spring Onion Lentils and peas Sweet potato Cabbage, corn, cauliflower Turnip Hedge mustard and knotweed.Bad Companion Plants Apricot Peppers Aubergines Peppers and tomatoes Blackberries Tomatoes Cape Gooseberries Tomatoes Cucumber Potatoes and aromatic herbs Figs Eggplants Grapes Radishes and potatoes Kiwi Fruit Eggplants Melon Peas and beans Citrus Fruits Maize, cowpea, sorghum and sweet potatoes Peach Corn, cowpeas, sweet potatoes Peppers and chillis Apricots, tomatoes, black walnuts Pineapples Walnut trees and eucalyptus Raspberries Peas, beans and other nitrogenous plants Squash Potatoes Strawberries All members of the cabbage family Sweetcorn Celery and tomatoes Tomatoes Peppers and chillis, beets, brassicas, rosemary.Bad Companion Plants Basil Thyme, common rue Chamomile Potatoes and radish Chervil Radish Chives Beans and peas Cumin Peas and beans Curry leaves Eggplants Comfrey Walnut and eucalyptus trees Coriander Dill Dill Cilantro or coriander Lavender Common rue and thyme Lemon balm Mustards and mints Mint Lavender, dill, cilantro Mustard Lemon balm, cabbages and grapes Mizuna and Mibuna Thyme and common rue Oregano Radish, potatoes, common rue, thyme Parsley Common rue and thyme Rosemary Peas and beans Saffron Plants belonging to the allium family Sage Any member of the allium family Sorrel Alliums and lettuce Tarragon Common rue and members of the allium family Thyme Common rue and allium family crops Yarrow Allium family plants and common rue.You can buy a polytunnel that is more than four times in size for less money and use it to plant a variety of flowers and vegetables.Interestingly, it’s much easier to move your polytunnel than to replace the soil in a greenhouse!Borrowing from the above point, you can avoid soil diseases that damage your crops by simply shifting your polytunnel around your garden.In a greenhouse, you’d probably have to cut down your entire crop if you find that a disease from the soil has affected it, but this is not the case with a polytunnel.For instance, the cost of buying items like fertilizers and tools will be greatly reduced.As a garden farmer, you’ll definitely feel proud when you start harvesting healthy vegetables and fruits at a low cost, all from using the right resources. .
Companion Planting Vegetables for Increased Crop Yield
For the best results plant them near onions, asparagus, carrots, parsley or cucumbers, but keep them well away from potatoes or members of the cabbage family. .
Companion Planting Chart
What are Companion Plants?For example, one plant may attract an insect that might protect a companion plant.Benefits of Companion Planting.There are many benefits to companion planting.What and how can companion planting help?– Plants and flowers that grow tall and strong will lend themselves as natural, organic supports to crops that grow low or sprawl.– Growing plants next to their companions can improve the overall health of both plants.Optimize Soil – A plant’s root system can easily affect the soil it is in.They are particularly helpful for tomatoes, repelling the nematodes that like to attack the roots of vegetables.They are particularly helpful for tomatoes, repelling the nematodes that like to attack the roots of vegetables.Asparagus, beans, beets, bell peppers, cabbage, chili peppers, eggplant, marigolds, oregano, potatoes, tomatoes Rue When basil is grown about 1 foot from tomato plants, it will increase the tomatoes yield.Beets, carrots, chard, cabbage, corn, cucumbers, peas, radishes Garlic, onions Nasturtiums and rosemary deter bean beetles Beets.Basil, beets, bush beans, carrots, celery, chamomile, cucumber, dill, garlic, lettuce, marigolds, mint, nasturtiums, onions, radishes, rosemary, sage, spinach, Swiss chard, thyme Asparagus, cantaloupe, climbing beans, mustard, peppers, pumpkins, strawberries, sweet corn, watermelon Rosemary repels the cabbage fly that is detrimental to broccoli.Beans, lettuce, onions, peas, peppers, tomatoes Dill Chives improve flavor, rosemary deters carrot flies Corn.Cabbage, carrots, chard, lettuce, peppers, tomatoes Beans, peas Chamomile improves growth and flavor Potatoes.Basil, beans, celery, corn, garlic, horseradish, lettuce, marigolds, onions, peas, radishes, spinach Asparagus, broccoli, Brussels sprouts, cabbage, cauliflower, carrots, cucumbers, eggplant, kohlrabi, melons, peppers, raspberries, squash, sunflowers, strawberries, tomatoes Cucumbers, tomatoes and raspberries attract harmful pests to potatoes.Beans, corn, marigolds, nasturtiums, squash Potatoes NONE Radishes.Beets, cabbage, carrots, chives, cucumbers, kale, lettuce, spinach, squash Hyssops Radish plants will work as a trap crop to protect against certain beetles.Beans, corn, dill, marigolds, nasturtiums, peas, radishes, strawberries, sunflowers Potatoes Squash has similar traits to pumpkin in terms of companion plants.Asparagus, carrots, celery, onions, parsley, peppers Corn, dill, kohlrabi, potatoes Basil, mint, and bee balm improve growth and flavor Zucchini. .
Understanding Companion Plants for Growing Potatoes
When planning your garden, potatoes offer a unique challenge, since there are many plants that grow well in close proximity to potatoes, but there are also a group of plants you should avoid planting near them.Plants can be defined as good companions for a number of different reasons, and the gardener may want to emphasize one reason over others when laying out a garden.Similar growth needs: Plants may have similar needs for fertilizing, water, or sunlight, which makes it easier to take care of them.Good companion planting strategies are especially important in small gardens or wherever careful space planning is needed.What is a good companion plant in one garden may not be a good companion in another garden in a different region.Lettuce, spinach, scallions, and radishes are shallow-rooted veggies that are a good choice for occupying the spaces between potato plants.There are several plants that are said to enhance the flavor of the potato tubers, including chamomile, basil, yarrow, parsley, and thyme (they also welcome in beneficial insects).Beans, cabbage, and corn all will help potatoes grow better and hence improve the flavor of the tubers.Beans and other legumes are good companion plants for most vegetables since they increase nitrogen levels in the soil.Horseradish is said to make potatoes resistant to disease, and petunias and alyssum will also attract beneficial insects that feast on insects destructive to potatoes.Colorado potato beetles are a particular problem for potatoes, and among the plants that repel this damaging pest are tansy, coriander, and catnip.Some reasons for avoiding close planting include:.Plants may compete with one another for sunlight, soil nutrients, or space.It is even best to avoid planting potatoes is the same soil where nightshade plants have recently been grown.This includes eggplant, peppers, and tomatoes.These include raspberries, sunflowers, pumpkins squash, and cucumbers.Asparagus, carrots, fennel, turnips, and onions seem to stunt the growth of potatoes.Good Companions for Potatoes.Plants to Avoid Planting Next to Potatoes. .