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What to Plant Next to Butternut Squash
Butternut squash grows best when planted next to companions like corn, beans, radishes, and marigolds.
These companion plants help butternut squash by improving pollination, repelling pests, and making better use of garden space.
If you’ve been wondering what to plant next to butternut squash, the answer depends on what you want to achieve.
Some plants boost growth, while others protect against common squash pests and diseases.
In this post, we’ll look at the best plants to grow next to butternut squash and a few you should keep far away.
Let’s dig in.
Why Companion Planting Helps Butternut Squash
Companion planting works because certain plants naturally support each other.
When you plant next to butternut squash with the right companions, you get a garden that almost takes care of itself.
1. Natural Pest Control
Some companion plants release scents that confuse or repel pests like squash bugs and vine borers.
This means fewer chemicals and a healthier butternut squash plant overall.
2. Better Pollination
Flowering companions attract bees and other pollinators to your garden.
Since butternut squash depends on pollination to set fruit, more bees mean more squash.
3. Efficient Use of Space
Butternut squash vines sprawl across the ground, leaving gaps between plants.
Growing shallow-rooted companions next to butternut squash fills those gaps without competing for nutrients.
The Best Plants to Grow Next to Butternut Squash
Here are the top companion plants for butternut squash that consistently deliver results.
1. Corn
Corn grows tall and strong, giving butternut squash vines something to climb and shade.
This pairing is a classic in the Three Sisters method, where corn, beans, and squash grow together.
2. Beans and Peas
Beans and peas fix nitrogen in the soil, which feeds the heavy-feeding butternut squash.
Plant bush beans next to butternut squash so they don’t compete for the same vertical space.
3. Radishes
Radishes are quick growers that loosen the soil and deter squash pests.
By the time your butternut squash vines spread out, the radishes are usually ready to harvest.
4. Marigolds
Marigolds release a scent that repels nematodes and squash bugs.
Plant them around the border of your butternut squash patch for a bright, protective barrier.
5. Nasturtiums
Nasturtiums act as a trap crop, drawing aphids away from your butternut squash.
They also attract pollinators, which helps your squash set more fruit.
6. Borage
Borage is a pollinator magnet and is often planted next to butternut squash for that reason alone.
It also deters pests and adds trace minerals to the soil when it breaks down.
What Not to Plant Next to Butternut Squash
Not every plant makes a good neighbor, and some can actually hurt your butternut squash.
1. Potatoes
Potatoes compete with butternut squash for nutrients and water.
They also share pests and diseases, which can spread quickly between the two.
2. Other Squash Varieties
Planting other squash next to butternut squash can lead to cross-pollination.
That means your seeds won’t grow true to type next season, and the flavor can suffer.
3. Fennel
Fennel releases compounds that stunt the growth of many garden plants, including butternut squash.
It’s best to keep fennel in its own corner of the garden.
Tips for Planting Next to Butternut Squash
A few smart habits will help your butternut squash and its companions thrive together.
1. Give Squash Plenty of Room
Butternut squash needs at least 3 to 4 feet of space per plant.
Plan your companions around that footprint so nothing gets smothered.
2. Match Water Needs
Group plants with similar watering needs next to butternut squash.
Corn, beans, and marigolds all do well with the same deep, weekly watering schedule.
3. Rotate Your Crops
Don’t plant butternut squash in the same spot every year.
Rotating crops next to butternut squash each season helps prevent soil-borne diseases.
4. Mulch Around the Base
Mulch keeps moisture in and weeds out, which benefits every plant in the bed.
It also keeps butternut squash fruit clean and off the bare soil.
So, What to Plant Next to Butternut Squash?
Butternut squash grows best when planted next to companions like corn, beans, radishes, and marigolds.
These plants improve pollination, repel pests, and make better use of garden space.
Just avoid planting potatoes, fennel, and other squash varieties next to butternut squash.
With the right companions, your butternut squash will reward you with a bigger, healthier harvest.
Hope this post has helped you decide what to plant next to butternut squash this season.