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You can grow asparagus crowns by planting one-year-old roots in deep, well-drained soil and giving them years of patience.
Growing asparagus crowns is one of those gardening projects that rewards you for years once it’s set up correctly.
If you’ve ever wondered how do you grow asparagus crowns, the short answer is you start with dormant roots rather than seeds.
These crowns are the underground stems and root systems of young asparagus plants, usually sold when they’re a year old.
Planting crowns instead of seeds saves you a full year of growth, and it’s the method most home gardeners use.
In this post, we’ll walk through how to grow asparagus crowns step by step, from choosing a spot to harvesting your first spears.
Let’s dig in.
Why You Should Grow Asparagus Crowns
Growing asparagus crowns gives you a serious head start compared to starting from seed.
Here’s why so many gardeners choose crowns over seeds.
1. You Skip a Year of Waiting
When you grow asparagus crowns, you’re planting roots that are already a year old.
That means you cut a full year off the timeline before your first harvest.
Asparagus already takes two to three years to produce, so every season you save matters.
2. Crowns Establish Faster and Stronger
A healthy crown has an established root system ready to spread out immediately.
When you grow asparagus crowns, those roots settle in fast and start storing energy right away.
Strong roots mean stronger spears down the road.
3. You Get More Predictable Results
Seeds can be finicky, and germination rates vary.
But when you grow asparagus crowns, you know exactly what you’re planting.
You can see the size and health of each crown before it ever touches the soil.
How Do You Grow Asparagus Crowns Step by Step?
Growing asparagus crowns comes down to soil prep, proper spacing, and patience.
Follow these steps and you’ll be on your way.
1. Pick the Right Spot and Prep the Soil
Asparagus is a perennial, so choose a spot where it can live for 15 to 20 years.
Full sun and well-drained soil are non-negotiable when you grow asparagus crowns.
Work in plenty of compost and aged manure to give the roots deep, rich ground to spread into.
2. Dig Trenches About 12 Inches Deep
To grow asparagus crowns properly, dig trenches roughly 12 inches deep and 12 to 18 inches wide.
Space your rows about 4 feet apart so the ferns have room to grow.
Add a layer of compost at the bottom and cover it with a couple inches of soil.
3. Plant the Crowns and Cover Gradually
Set each crown on the soil mound with the roots spread out and the bud pointing up.
Space crowns 12 to 18 inches apart within the trench.
Cover them with 2 inches of soil, then keep adding soil as the shoots grow through the season.
4. Water Deeply and Mulch Well
When you grow asparagus crowns, consistent moisture is key, especially in the first year.
Water deeply once a week, aiming for about an inch of water each time.
Add a layer of mulch to keep moisture in and weeds down.
5. Be Patient Before You Harvest
The hardest part of growing asparagus crowns is waiting.
Don’t harvest anything the first year, and only take a light harvest the second.
By year three, you can harvest for about six to eight weeks each spring.
Common Mistakes When You Grow Asparagus Crowns
Even experienced gardeners slip up when they grow asparagus crowns.
Avoid these common pitfalls.
1. Planting in Poorly Drained Soil
Asparagus roots rot quickly in soggy ground.
If your soil holds water, build raised beds before you grow asparagus crowns.
2. Harvesting Too Soon
Picking spears in year one weakens the plant.
Let the ferns grow and feed the roots so future harvests stay strong.
3. Skipping Weed Control
Weeds compete hard with young crowns.
Mulch generously and hand-pull weeds so your asparagus crowns get all the nutrients.
So, How Do You Grow Asparagus Crowns?
You grow asparagus crowns by planting dormant one-year-old roots in deep, fertile, well-drained soil.
Growing asparagus crowns takes patience, but the payoff lasts for decades.
Plant them right, keep them watered, avoid harvesting too early, and you’ll enjoy fresh spears every spring.
Hope this post helped you learn how do you grow asparagus crowns and gave you the confidence to start your own patch.