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Yes, you can plant asparagus next to rhubarb.
In fact, they make one of the best perennial pairings for a backyard garden.
Both are long-lived crops that come back year after year, and they share similar soil and sunlight needs.
If you’ve been wondering whether you can plant asparagus next to rhubarb, the short answer is a resounding yes.
These two are practically made for each other in a perennial bed.
In this post, we’ll look at why you can plant asparagus next to rhubarb, how to set them up for success, and a few things to watch out for.
Let’s dig in.
Why You Can Plant Asparagus Next to Rhubarb
You can plant asparagus next to rhubarb because they grow in harmony rather than competing for the same resources.
Here’s why this pairing works so well.
1. They Share the Same Growing Conditions
Asparagus and rhubarb both thrive in full sun and well-drained soil.
They each prefer a soil pH between 6.0 and 7.0, so you don’t have to compromise on one to please the other.
When you plant asparagus next to rhubarb, you’re placing two plants with nearly identical needs side by side.
That means one patch preparation serves both crops.
2. They Occupy Different Space
Asparagus sends up tall, ferny spears while rhubarb grows large, broad leaves on thick stalks.
Because their growth habits differ, they don’t crowd each other out the way two sprawling plants might.
The rhubarb’s big leaves can even shade the soil around the asparagus, which helps keep moisture in and weeds down.
So planting asparagus next to rhubarb works partly because they layer well in the garden.
3. Both Are Perennials With Similar Lifespans
Asparagus can produce for 15 to 20 years, and rhubarb can live just as long with proper care.
Since both are long-term investments, they belong in the same permanent bed.
You won’t have to dig up one crop to replant the other every season.
That longevity is a big reason you can plant asparagus next to rhubarb without disrupting either plant’s root system.
4. They Don’t Share Major Pests or Diseases
Asparagus is bothered by asparagus beetles and crown rot, while rhubarb deals with its own set of issues like rhubarb curculio and crown rot.
Fortunately, the pests and diseases that trouble one rarely bother the other.
When you plant asparagus next to rhubarb, you’re not creating a breeding ground for shared problems.
That makes the pairing a low-risk choice for a mixed perennial bed.
How to Plant Asparagus Next to Rhubarb the Right Way
Planting asparagus next to rhubarb is easy, but a little planning goes a long way.
Here’s how to do it properly.
1. Give Each Plant Enough Room
Space asparagus crowns about 12 to 18 inches apart within their row, and leave 3 to 4 feet between rows.
Rhubarb needs even more room, so give each plant about 3 feet of space in every direction.
When you plant asparagus next to rhubarb, keep them in separate rows or sections rather than interplanting them tightly.
This spacing prevents their roots from tangling as they mature.
2. Prepare the Soil Deeply
Both crops are heavy feeders that reward you for good soil preparation.
Work in plenty of compost and aged manure before planting.
Asparagus roots go deep, so loosen the soil at least 12 inches down.
Good drainage matters too, since neither plant likes soggy roots.
3. Plant at the Right Time
The best time to plant asparagus next to rhubarb is early spring, while both are still dormant.
Plant asparagus crowns as soon as the soil can be worked.
Set rhubarb crowns so the buds sit just below the soil surface.
Planting them together in spring gives both crops a full season to establish.
4. Water and Mulch Consistently
Both plants need steady moisture, especially in their first year.
Water deeply once a week rather than giving light daily sprinkles.
Add a layer of mulch to hold moisture and suppress weeds.
When you plant asparagus next to rhubarb, a shared mulch layer keeps the whole bed happy.
Things to Watch Out For
Even though you can plant asparagus next to rhubarb, a few cautions are worth knowing.
1. Don’t Harvest Too Soon
Both crops need time to establish before you harvest.
Wait at least two years before cutting asparagus spears, and give rhubarb a full year before pulling stalks.
Patience now pays off with decades of harvests later.
2. Avoid Overwatering
Rhubarb is more tolerant of wet soil than asparagus, which can rot in soggy conditions.
If your bed drains poorly, plant them in raised beds so both stay healthy.
3. Keep Rhubarb Leaves Out of the Compost
Rhubarb leaves contain oxalic acid and shouldn’t be eaten or composted carelessly.
When you plant asparagus next to rhubarb, remember those leaves are for the trash, not the pile.
4. Fertilize With Care
Feed both crops in early spring with a balanced fertilizer or compost.
Avoid high-nitrogen blends late in the season, which can push tender growth before frost.
So, Can You Plant Asparagus Next to Rhubarb?
You can plant asparagus next to rhubarb, and it’s actually one of the smartest pairings for a perennial garden.
They share the same sun, soil, and spacing needs, they don’t compete for the same pests, and they live for decades side by side.
Just give each plant enough room, prepare your soil well, and be patient during those first couple of years.
Once established, planting asparagus next to rhubarb gives you a low-maintenance bed that keeps producing season after season.