How To Winterize Asparagus Plants

How to Winterize Asparagus Plants Cut back the stalks and foliage to ground level in fall, after the leaves begin to yellow and die back naturally. Stop watering the asparagus after you cut back the stems. Spread 2 inches of mulch over the bed after you cut back the old stalks.

Should asparagus plants be cut back in winter?

The asparagus foliage can be cut back to the ground after it has been destroyed by cold temperatures in fall. However, it is generally recommended that the dead foliage be allowed to stand over winter. The dead debris will catch and hold snow. Snow cover helps protect the asparagus crowns from freeze damage.

What do you do with asparagus plants at the end of the season?

Leave asparagus stems on plants as long as they remain green—well into autumn. When stalks turn brown and brittle cut them off at ground level and top dress the bed with compost or manure. (Place cut stalks and ferns in the trash—not in the compost pile; asparagus-beetle eggs can overwinter in cut stalks.).

What happens if you don’t cut asparagus?

Picking the pieces slowly stresses the plant, so when it’s left alone for the rest of the year, it’s able to regain strength and grow new roots. This in turn helps have more production in the coming years. Once the asparagus is left alone, it grows into a large shrub-like fern.

When should I burn my asparagus?

As soon as the field is passable in early spring, mow or chop the old asparagus ferns with a brush hog mower or flail chopper if not chopped in the previous fall. Alternatively, they can be burned down with a controlled burn. Burning helps eliminate asparagus beetles that have overwintered in the old ferns.

What is the best mulch for asparagus?

Straw, pine needles, pine shavings or bark mulch work well as mulch choices. Avoid using dyed mulches (black or red). Avoid using synthetic mulches like black plastic or landscape fabric.

What is the best fertilizer for asparagus?

The best fertilizer for asparagus will feature a balanced formula that contains equal amounts of nitrogen, phosphorus and potassium, such as a 10-10-10 or 15-15-15 blend. Beginning in the fourth year, apply fertilizer after the final harvest in late spring or early summer, instead of a spring application.

Can you harvest asparagus the second year?

Do not harvest the spears in the first or second year (the plant needs time to grow out its root system), but cut down dead foliage in late fall and side-dress with compost. During the second year, side-dress with compost in spring and early fall and cut down dead ferns in late fall.

Does asparagus need to be covered for frost?

Frost can kill young asparagus spears when they first emerge from the soil. They will shrivel and turn black, making them inedible. Cut off all damaged spears. They will die back with winter frost but the underground crown will survive cold weather and be recharged for spring production.

Is asparagus frost hardy?

Asparagus fern growing outdoors can withstand some very light frost, but freezing temperatures, below 32 degrees Fahrenheit, often kill the plant to the ground. After a light frost, the plants do grow back from the roots.

Can I bring my asparagus fern inside for the winter?

Overwintering Asparagus Ferns Indoors Asparagus ferns are grown as potted plants in most locations, whether they are grown indoors or outdoors. Outdoor-grown asparagus ferns will survive harsh winter weather best if brought indoors before temperatures dip below 55 degrees Fahrenheit.

Why is my asparagus skinny?

Thin asparagus spears appear for a number of reasons, but the root cause is ultimately the same: the asparagus crown lacks the rigor to create bigger shoots. Improper Feeding – Asparagus are somewhat heavy feeders and need all the food they can get in order to build strong spears the following year.

Should I let asparagus go to seed?

Ferning out in asparagus is actually a good thing, as it indicates that photosynthesis is being promoted, therefore, nutrition production and absorption increases. As the asparagus ferns out, female spears produce green berries that eventually turn red. These berries/seeds, however, are unlikely to produce new plants.

Why is my asparagus so tall?

The oversized, fern-like growth of the mature asparagus plant is how the plant photosynthesizes, producing nutrients to be stored in the crown as fuel for the next year’s (or decade’s) growth and production.

Why do you cut asparagus below the ground?

cut. It’s important to note there are no benefits or advantages of cutting asparagus below the soil with a knife. On the contrary, this may pose risk of injury to buds on the crown that will send up new spears. Snapping a 7 to 9 inch spear slightly above the ground level is the ideal harvesting procedure.

Can I till my asparagus bed?

Since asparagus is a perennial crop, it’s not possible for home gardeners to till or plow the planting area to eliminate weeds.

What is the lifespan of asparagus?

Most asparagus plants have a 10 year life expectancy. However, we have heard of cases where the plants live much longer. Asparagus plants are either male or female.

Are coffee grounds good for asparagus?

Asparagus prefers a soil pH between 6.5 and 7, which is mildly acidic. Coffee grounds can run 5 or less on the pH scale by themselves. The grounds also add some nitrogen, which is a regular nutrition need of asparagus.

Is Epsom salt good for asparagus?

Asparagus, Cabbage, cauliflower, kale, onions, radishes, Turnips and many flowering plants need a lot of sulfur to thrive. Epsom salts are highly water-soluble, when diluted with water, and applied as a foliar spray it can be absorbed rapidly by plants.

Can you put horse manure on asparagus?

Since the asparagus bed will be permanent, this part of the plot was brought into good condition the previous year and prepared in the autumn with a top mulch of horse manure. The bed is bordered on one side by a path to allow good access for harvesting the crop.