Asparagus Growing Season
when should I cut down the Asparagus stalks?
After the growing season, I have 3 to 4 feet tall Asparagus stalks. Shoul I wait until they turn brown to cut them off? And, how exactly should they be cut (abov or below ground)?
When can I start harvesting my asparagus?
A. Asparagus plants should be allowed to become well established before any spears are harvested. No spears should be harvested during the first growing season. Asparagus can be harvested over a three to four week period during its second growing season. In following years, asparagus plantings can be harvested until early to mid-June. Harvest asparagus by cutting or snapping the spears when they reach a height of 6 to 8 inches.
When should I stop harvesting asparagus?
A. Discontinue harvesting well established asparagus plantings in early June in southern Iowa and mid-June in northern portions of the state. If harvested over a longer period, the plants may be weakened and less productive in future years. Allow the asparagus stalks to grow after the last harvest.
Eric Toensmeier, author of Perennial Vegetables, tours his perennial root crop.