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Growing asparagus from bare root is one of the most rewarding ways to start a perennial vegetable patch that can feed you for decades.
If you’ve been wondering how to grow asparagus from bare root, the good news is that it’s surprisingly simple once you understand what those dormant crowns need.
Bare root asparagus crowns are basically one-year-old roots that have been dug up while dormant and shipped without soil.
You can grow asparagus from bare root in early spring, and with a little patience, those humble crowns will turn into a productive bed you can harvest for 15 to 20 years.
In this post, we’ll walk through how to grow asparagus from bare root step by step, from choosing a spot to planting day and beyond.
Let’s dig in.
How to Grow Asparagus From Bare Root
Growing asparagus from bare root starts with understanding what you’re actually planting.
Here’s why this method works so well and what’s happening underground.
1. Bare Root Crowns Are Ready to Grow
When you grow asparagus from bare root, you’re planting crowns that already have a year of growth behind them.
These crowns carry stored energy in their roots, so they’re eager to send up spears as soon as they settle into the soil.
That head start is exactly why growing asparagus from bare root beats starting from seed.
2. You Skip the Slow Seedling Stage
Starting asparagus from seed can add an entire year to your wait before the first harvest.
When you grow asparagus from bare root instead, you shave off that extra time.
The crowns are already past the fragile seedling phase, which means fewer losses and faster establishment.
3. Bare Root Crowns Adapt Quickly
Bare root asparagus is planted while dormant, so the roots wake up directly in their forever home.
There’s no transplant shock from a nursery pot and no tangled roots to untangle.
The crowns simply spread out, anchor themselves, and start growing asparagus spears when the soil warms up.
When and Where to Grow Asparagus From Bare Root
Timing and location make or break your asparagus bed, so let’s get both right.
1. Plant in Early Spring
The best time to grow asparagus from bare root is as soon as the soil can be worked in early spring.
Planting while the crowns are still dormant gives them time to settle before the heat arrives.
If you live in a cold climate, aim for four to six weeks before your last frost date.
2. Pick a Sunny, Permanent Spot
Asparagus is a long-term commitment, so choose a spot that gets at least six to eight hours of sun daily.
Because the bed will stay put for years, avoid anywhere you plan to rototill or replant.
A dedicated corner of the garden works perfectly when you grow asparagus from bare root.
3. Make Sure the Soil Drains Well
Asparagus hates soggy feet, and waterlogged roots will rot before they ever produce a spear.
Work in plenty of compost and make sure the ground drains freely.
If your soil is heavy clay, consider planting in a raised bed so your bare root asparagus has the drainage it craves.
4. Test and Adjust the Soil
Asparagus prefers soil with a pH between 6.5 and 7.5.
A simple soil test takes the guesswork out of it.
Add lime if it’s too acidic, or organic matter if it needs a boost, before you grow asparagus from bare root.
How to Plant Asparagus Bare Root Step by Step
Now for the fun part, actually getting those crowns into the ground.
1. Soak the Crowns First
Before planting, soak your bare root asparagus crowns in water for about 30 minutes.
This rehydrates the roots and gives them a strong start.
Don’t leave them soaking overnight, though, since soggy crowns can smother.
2. Dig a Trench
Dig a trench about 12 inches wide and 6 to 8 inches deep.
Space rows roughly three to four feet apart so the ferns have room to spread.
This trench is where you’ll grow asparagus from bare root for years to come.
3. Build Little Mounds
Form a small mound of soil in the bottom of the trench for each crown.
Set the crown on top and drape the roots down over the mound like a little tent.
This keeps the roots pointing downward when you grow asparagus from bare root.
4. Space the Crowns Correctly
Space crowns about 12 to 18 inches apart within the row.
Crowding them now means weaker plants later.
Give each bare root crown room to breathe and it’ll reward you handsomely.
5. Cover and Water
Cover the crowns with just two inches of soil at first, then water gently.
As shoots emerge, keep filling the trench gradually through the season.
By fall, the trench should be level, and your asparagus will be well on its way.
Caring for Asparagus After Planting Bare Root
Planting is just the beginning, and a little care goes a long way.
1. Water Consistently
Keep the bed evenly moist, especially during that first growing season.
A deep weekly watering beats frequent light sprinkles every time.
Consistent moisture helps bare root asparagus establish strong roots.
2. Mulch to Suppress Weeds
A layer of straw or compost keeps weeds down and holds moisture in.
Weeds compete hard with young crowns, so stay on top of them.
Mulching also feeds the soil as it breaks down.
3. Feed in Early Spring
Top-dress with compost or a balanced organic fertilizer each spring.
Asparagus is a heavy feeder and appreciates the extra nutrition.
Healthy crowns produce more spears once you start harvesting.
4. Be Patient With Harvesting
Don’t harvest any spears the first year after you grow asparagus from bare root.
The second year, take just a light harvest for a couple of weeks.
By the third year, you can harvest fully for six to eight weeks each spring.
So, How to Grow Asparagus From Bare Root
Growing asparagus from bare root comes down to planting dormant crowns in early spring in a sunny, well-drained bed and then caring for them patiently.
Those same crowns that seem so unassuming on planting day will send up tender spears for years if you give them good soil and steady moisture.
The wait is longer than with most vegetables, but the payoff of a homegrown asparagus bed that keeps producing season after season is absolutely worth it.