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Yes, you can plant rhubarb next to asparagus, and in fact, they make surprisingly good garden companions when you set things up right.
Both are perennial crops that come back year after year, so once you get them established, they can share the same patch without much fuss.
If you’ve been wondering whether rhubarb and asparagus can be planted together, the short answer is yes, but there are a few things to keep in mind so both plants thrive instead of competing.
In this post, we’ll look at whether rhubarb can be planted next to asparagus, why they work well together, and how to space and care for them so both crops stay happy.
Let’s dig in.
Can Rhubarb Be Planted Next to Asparagus?
Rhubarb can be planted next to asparagus, and many gardeners do it on purpose because the two plants have similar needs and don’t usually fight each other for resources.
Here’s why this pairing tends to work so well.
1. They Share Similar Soil and Sun Needs
Rhubarb and asparagus both love full sun and well-drained soil that’s rich in organic matter.
When you plant rhubarb next to asparagus, you’re putting two plants together that want the same growing conditions, which makes care a lot simpler.
You don’t have to juggle different watering schedules or soil types, so planting rhubarb next to asparagus saves you time and effort.
2. Both Are Long-Lived Perennials
Asparagus can produce for 15 to 20 years, and rhubarb can keep going for a decade or more.
Since both are in it for the long haul, planting rhubarb next to asparagus means you won’t have to replant one while the other is still getting established.
That said, this is exactly why you should get the spacing right from the start, because moving either plant later is a real pain.
3. Different Root Depths Reduce Competition
Asparagus roots grow deep and wide, while rhubarb sends out thick, fleshy roots closer to the surface.
Because their roots feed at different levels, rhubarb next to asparagus doesn’t usually create a fierce battle for water and nutrients.
This difference in root depth is one of the biggest reasons you can plant rhubarb next to asparagus without one choking out the other.
4. They Don’t Share Major Pests or Diseases
Asparagus has its own set of troublemakers, like asparagus beetles, and rhubarb deals with things like crown rot and slugs.
The good news is these problems rarely cross over, so planting rhubarb next to asparagus doesn’t create a pest paradise.
That said, poor drainage can hurt both plants, so make sure the bed drains well before you plant rhubarb next to asparagus.
How to Plant Rhubarb Next to Asparagus the Right Way
Knowing that you can plant rhubarb next to asparagus is one thing, but doing it well takes a little planning.
Follow these steps so your rhubarb and asparagus get along from day one.
1. Give Them Enough Space
Space asparagus crowns about 12 to 18 inches apart in rows, and give rhubarb its own room of at least 3 feet in every direction.
Rhubarb gets big, and its leaves can shade out younger asparagus spears if you crowd them, so leave a buffer between the two.
When you plant rhubarb next to asparagus, think of rhubarb as the neighbor that needs a little personal space.
2. Prepare a Rich, Well-Drained Bed
Work in plenty of compost or aged manure before planting, since both crops are heavy feeders.
Good drainage matters even more, because rhubarb hates soggy roots and asparagus won’t tolerate standing water either.
If your soil is heavy clay, plant rhubarb next to asparagus in a raised bed to keep those roots happy.
3. Water Deeply but Not Too Often
Both plants prefer deep, occasional watering over light daily sprinkles.
Aim for about an inch of water per week, and let the top inch or two of soil dry out between waterings.
When rhubarb is planted next to asparagus, deep watering encourages strong roots for both instead of shallow, weak ones.
4. Mulch to Keep Things Tidy
A layer of straw or compost mulch helps hold moisture and smother weeds that would otherwise compete with your plants.
Just keep mulch a few inches away from the crowns of both rhubarb and asparagus to avoid rot.
Mulching is one of the easiest ways to keep rhubarb next to asparagus looking neat and healthy.
Potential Problems When You Plant Rhubarb Next to Asparagus
Even though rhubarb and asparagus make good neighbors, a few issues can pop up if you’re not careful.
Here’s what to watch for when you plant rhubarb next to asparagus.
1. Shading From Big Rhubarb Leaves
Rhubarb leaves are huge and can block sunlight from reaching young asparagus spears.
Plant rhubarb on the north side of your asparagus rows so the sun still reaches the spears.
That simple trick keeps rhubarb next to asparagus from turning into a shading problem.
2. Harvest Timing Conflicts
You harvest asparagus in spring and rhubarb from spring into early summer, so the two can overlap.
That’s actually a bonus, since you can walk out and grab both for the same meal.
Just be gentle and avoid trampling the bed when you harvest rhubarb next to asparagus.
3. Overcrowding Over Time
Both plants spread as they mature, so what looked roomy at first can get tight after a few years.
Divide rhubarb every few years to keep it in check and give asparagus room to breathe.
Staying on top of this is the key to keeping rhubarb next to asparagus happy long term.
So, Can Rhubarb Be Planted Next to Asparagus?
Rhubarb can be planted next to asparagus, and with the right spacing, soil, and watering, the two perennials can thrive side by side for years.
They share similar sun and soil needs, their roots feed at different depths, and they don’t pass pests back and forth.
Just give rhubarb plenty of room, plant it on the north side, and keep the bed well drained and mulched.
If you’ve been asking whether you can plant rhubarb next to asparagus, now you know the answer is a confident yes, so go ahead and enjoy both harvests from the same patch.