Can You Grow Asparagus from the Store?
No, you cannot grow a new asparagus plant by planting the cut spears you buy at the grocery store. Those spears are shoots that have been harvested without roots, so they will not regrow. However, you can sometimes find asparagus crowns or potted plants for sale at garden centers in early spring, and those will grow into full beds when planted correctly.
Can You Grow Asparagus from Store-Bought Spears?
The short answer is no. Asparagus spears sold in grocery stores are the young shoots of the plant, cut off at the soil line. They have no root system or crown attached. Without roots, the spear cannot absorb water or nutrients, and it will simply rot or dry out if placed in soil. You might be able to keep a cut spear fresh in water for a few days, but it will never develop into a mature plant.
This is a common misconception because many vegetables like green onions, celery, and lettuce can regrow from the base when placed in water. Asparagus does not have the same regenerative ability from cut stems. The only part of an asparagus plant that can produce new growth is the crown — a cluster of dormant buds and fleshy roots that store energy.
What About Asparagus Crowns Sold at Stores?
Yes, many garden centers, hardware stores, and even some online retailers sell asparagus crowns in early spring. These are dormant root systems that have been dug up from one-year-old nursery plants. When planted correctly, they will send up spears in the first year and produce a full harvest in the third year.
Store-bought crowns are usually sold in bundles of 10 to 25, often packed in damp peat moss or wood shavings. They look like a tangled mass of brown roots with a few small nubs at the top. That top part is the bud, which will grow into spears. If you buy crowns from a store, they are ready to plant and have a much higher success rate than any attempt to grow from cut spears.
Where to Find Asparagus Crowns
- Local garden centers — often arrive in late winter or early spring.
- Farm supply stores — may carry bulk crowns during planting season.
- Online nurseries — ship bare-root crowns at the right time for your zone.
- Some grocery stores — occasionally sell small potted asparagus plants in the garden section.
How to Choose Store-Bought Asparagus Crowns
When you buy crowns from a store, look for these qualities to ensure a healthy start:
- Firm, plump roots that are not dried out or shriveled.
- No signs of mold or rot — avoid any that feel mushy or smell sour.
- Multiple buds visible on the crown (at least 3 to 5 small bumps).
- Moist but not soaking packaging — the roots should be slightly damp.
- Fresh stock — buy as early in the season as possible before they sit on shelves too long.
If you cannot find crowns locally, you can also order asparagus crowns online from reputable sellers. Choose a variety suited to your climate, such as Jersey Knight or Mary Washington.
Step-by-Step: Planting Store-Bought Asparagus Crowns
Once you have your crowns, follow these steps for a successful bed:
- Choose the right location. Asparagus needs full sun (at least 8 hours per day) and well-draining soil. Avoid low spots where water pools.
- Prepare the soil. Remove all weeds and dig a trench about 12 inches wide and 6 to 8 inches deep. Mix in 2 to 4 inches of compost or aged manure. Asparagus prefers a soil pH between 6.5 and 7.5. Test your soil and adjust if needed using a soil pH tester.
- Soak the crowns. Place the roots in a bucket of water for 15 to 30 minutes before planting. This rehydrates them.
- Set the crowns. Place each crown in the trench with the buds facing up. Spread the roots out evenly. Space crowns 12 to 18 inches apart in rows that are 4 feet apart.
- Cover lightly. Cover the crowns with 2 to 3 inches of soil. Do not fill the trench completely yet. As spears grow, gradually add more soil over several weeks until the trench is level.
- Water well. Give the bed a deep watering right after planting. Keep the soil moist but not soggy for the first few weeks.
- Mulch. Apply a 2-inch layer of straw or wood chips to keep weeds down and retain moisture.
Can You Grow Asparagus from Store-Bought Seeds?
You might find asparagus seeds in a store's seed rack, but you will not find viable seeds inside the spears you buy for cooking. The red berries that contain seeds grow only on female asparagus plants, and those berries are not present on harvested spears. If you want to grow from seed, buy a packet of asparagus seeds from a garden store or online. Starting from seed adds an extra year to the wait before harvest, so most beginners prefer crowns.
Common Mistakes When Planting Store-Bought Asparagus
Even with good crowns, several mistakes can ruin your asparagus bed.
- Planting too deep. If the crowns are buried more than 8 inches deep, they may rot or take too long to emerge. Stick to the 6- to 8-inch trench depth.
- Harvesting too early. Many people want to pick spears in the first year. Resist the temptation. Let all spears grow into ferns to build the root system for future harvests.
- Overwatering. Asparagus likes consistent moisture but not waterlogged soil. Heavy clay can cause root rot. Improve drainage with organic matter or plant in raised beds.
- Ignoring weeds. Asparagus does not compete well with weeds, especially grass roots. Keep the bed weed-free by hand-pulling or using a shallow hoe.
- Planting in too small a space. A single crown needs about 1 square foot of space. Cramped plants produce thin, weak spears.
What to Expect After Planting Store-Bought Asparagus
In the first season after planting crowns, you will see small spears appear after 3 to 6 weeks. Let them grow into tall, ferny stalks. Those ferns absorb sunlight and send energy down to the roots, building a strong crown. In the second spring, you can harvest a few spears from each plant for two to three weeks. By the third year, you can harvest for six to eight weeks each spring.
Here is a quick care table for the first three years:
| Year | Harvest Window | Expected Spear Thickness | Maintenance |
|---|---|---|---|
| 1 | None | Pencil-thin (leave to grow) | Water, weed, mulch |
| 2 | 2–3 weeks | Pencil to finger-thick | Harvest when 6–8 inches tall |
| 3+ | 6–8 weeks | Finger-thick or larger | Stop harvest when spears are thin |
After the harvest season ends each year, let the remaining spears grow into ferns. Cut the ferns down to the ground in late fall after they turn brown. This helps prevent disease and prepares the bed for winter.
Final Verdict: Can You Grow Asparagus from the Store?
You can grow asparagus from the store only if you buy crowns or potted plants, not the cut spears. The produce section asparagus is already harvested and will never root. For a successful bed, buy healthy crowns from a garden center or online, prepare the soil well, and follow a patient three-year plan. Once established, a single planting can produce spears for 15 to 20 years. That makes the initial investment of a few dollars per crown well worth it. If you are ready to start, look for asparagus crowns in early spring, grab a garden trowel for trenching, and plan your bed when the soil is workable. With the right store-bought material, you can enjoy homegrown asparagus for decades.