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To plant purple passion asparagus, start with crowns or seeds in early spring once the soil can be worked.
Purple passion asparagus is a perennial vegetable that rewards you with tender, sweet, and mildly nutty spears for years when planted correctly.
Unlike the common green varieties, purple passion asparagus brings a vibrant color to your garden and a slightly sweeter flavor to your plate.
If you’ve been wondering how to plant purple passion asparagus, the good news is it’s not complicated, but it does require a bit of patience and a well-prepared bed.
In this post, we’ll walk through how to plant purple passion asparagus step by step, including soil prep, spacing, and the care it needs to thrive.
Let’s dig in.
How to Plant Purple Passion Asparagus: The Basics
The best way to plant purple passion asparagus is to start with one-year-old crowns rather than seeds.
Crowns give you a head start and will produce harvestable spears a full year earlier than seeds.
You can plant purple passion asparagus crowns in early spring, as soon as the soil is workable and the danger of a hard freeze has passed.
If you plant purple passion asparagus from seed, you’ll need to start them indoors about 12 weeks before your last frost date and transplant them out after they’ve grown into sturdy little seedlings.
Choose the Right Spot
Purple passion asparagus needs full sun, so pick a spot that gets at least six to eight hours of direct light each day.
It’s a perennial, meaning the bed you plant it in should be a long-term commitment, so choose a location where it can stay undisturbed for 15 to 20 years.
Good drainage is critical because soggy roots will rot faster than you can say “purple passion asparagus.”
Prepare the Soil
Before you plant purple passion asparagus, work the soil deeply and mix in plenty of compost or aged manure.
Aim for a soil pH between 6.5 and 7.5, and loosen the earth to a depth of at least 12 inches.
This deep preparation matters because asparagus roots grow thick and long, and they need room to spread.
Step-by-Step Planting of Purple Passion Asparagus
Planting purple passion asparagus is easiest when you dig a trench rather than individual holes.
Dig a trench about 6 to 8 inches deep and 12 inches wide.
Space your crowns about 12 to 18 inches apart within the trench, and keep rows 3 to 4 feet apart.
Create a small mound of soil in the bottom of the trench, then set each crown on top so the roots drape down naturally.
Cover and Water
Once the crowns are in place and planted, cover them with just 2 inches of soil.
Water gently and thoroughly, then wait.
As the spears grow through the season, keep adding soil until the trench is filled, but never bury the tips of the growing spears.
This gradual covering is the secret to how to plant purple passion asparagus so it establishes strong roots without smothering the new growth.
Mulch and Feed
After planting purple passion asparagus, spread a layer of mulch to keep moisture in and weeds out.
Feed your bed with a balanced fertilizer in early spring and again after harvest.
Avoid over-fertilizing, because too much nitrogen encourages leafy growth at the expense of spears.
Caring for Purple Passion Asparagus After Planting
The first year after you plant purple passion asparagus, resist the urge to harvest.
Let the spears grow into tall, ferny stalks that feed the crown through photosynthesis.
You can take a light harvest in the second year, and by the third year you can harvest for six to eight weeks.
Weed Control
Weeds compete hard with young asparagus, so keep the bed clean by hand-pulling rather than hoeing, which can damage shallow roots.
A thick mulch helps, but check regularly and pull anything that sneaks through.
Watering Needs
Give your purple passion asparagus about an inch of water per week, more during hot, dry spells.
Consistent moisture keeps the spears tender and prevents them from turning woody.
Pest and Disease Watch
Purple passion asparagus is fairly tough, but watch for asparagus beetles and crown rot.
Good airflow and well-drained soil are your best defenses, and hand-picking beetles early keeps them from taking over.
So, How Do You Plant Purple Passion Asparagus?
You plant purple passion asparagus by starting with healthy crowns in early spring, choosing a sunny spot, and digging a deep trench with rich, well-drained soil.
Set the crowns on mounds, cover them gradually as they grow, and water and mulch consistently.
Be patient, skip the first-year harvest, and your purple passion asparagus will reward you with sweet, colorful spears for decades.
Hope this post has helped you understand how to plant purple passion asparagus and set up a bed that thrives.