S
Stephen Albert
Guest
Companion planting with potatoes can improve yields, reduce pest problems, and make the most of your garden space. After decades of growing potatoes alongside vegetables, herbs, and flowers in both raised beds and containers, I’ve learned which plants make great neighbors—and which can cause trouble.
Here’s my complete guide to what grows well with potatoes and what to avoid.
Marigolds companion plants for potatoes
Beans fix nitrogen in the soil, helping feed potato plants naturally. Bush beans are especially good because they don’t shade potato foliage.
Broccoli, cabbage, kale, and Brussels sprouts benefit from potatoes’ ability to repel certain pests like aphids and flea beetles. Plant them nearby but not so close that foliage crowds.
Corn’s tall stalks provide light shade to potato foliage during hot summer afternoons, helping prevent heat stress.
A traditional companion for potatoes—horseradish at the corners of your potato bed may help repel Colorado potato beetles.
These flowers release compounds that may deter nematodes and attract beneficial insects like ladybugs to control aphids.
All are part of the nightshade family and share similar diseases, such as late blight. Planting them near potatoes increases the risk of spreading these problems.
They can attract pests like aphids that also target potatoes, and they compete for similar nutrients.
They produce allelopathic chemicals that can inhibit potato growth and reduce yields.
Both carrots and potatoes are root crops that compete for underground space and can hinder each other’s growth.
Gardener’s Tip:
In my Sonoma Valley garden (Zone 9), I rotate potatoes each season and avoid planting them in the same spot—or near nightshades—for at least three years. This reduces disease pressure and keeps yields high.
The post Companion Planting with Potatoes: What Grows Together and Avoid appeared first on Harvest to Table.
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Here’s my complete guide to what grows well with potatoes and what to avoid.
Marigolds companion plants for potatoes
Best Companion Plants for Potatoes
1. Beans
Beans fix nitrogen in the soil, helping feed potato plants naturally. Bush beans are especially good because they don’t shade potato foliage.
2. Cabbage Family (Brassicas)
Broccoli, cabbage, kale, and Brussels sprouts benefit from potatoes’ ability to repel certain pests like aphids and flea beetles. Plant them nearby but not so close that foliage crowds.
3. Corn
Corn’s tall stalks provide light shade to potato foliage during hot summer afternoons, helping prevent heat stress.
4. Horseradish
A traditional companion for potatoes—horseradish at the corners of your potato bed may help repel Colorado potato beetles.
5. Marigolds
These flowers release compounds that may deter nematodes and attract beneficial insects like ladybugs to control aphids.
Plants to Avoid Near Potatoes
1. Tomatoes, Peppers, and Eggplants
All are part of the nightshade family and share similar diseases, such as late blight. Planting them near potatoes increases the risk of spreading these problems.
2. Cucumbers
They can attract pests like aphids that also target potatoes, and they compete for similar nutrients.
3. Sunflowers
They produce allelopathic chemicals that can inhibit potato growth and reduce yields.
4. Carrots
Both carrots and potatoes are root crops that compete for underground space and can hinder each other’s growth.
Gardener’s Tip:
In my Sonoma Valley garden (Zone 9), I rotate potatoes each season and avoid planting them in the same spot—or near nightshades—for at least three years. This reduces disease pressure and keeps yields high.
The post Companion Planting with Potatoes: What Grows Together and Avoid appeared first on Harvest to Table.
Continue reading...