The fibrous condition is caused by overmaturity or inadequate fertility. Spears with loosely formed heads are overmature. Cut asparagus spears 1 to 2 inches below the soil level. At least one-half the length of the spear should be above the ground. Never cut the spear within 2 inches of the crown to avoid damage to the developed buds.
Some gardeners prefer white or blanched asparagus.
This is grown by shading the spears with mounds of soil or mulch to exclude light. Insects Home garden asparagus can be damaged by the asparagus beetle in some areas. If you observe insects feeding on asparagus, contact your local county Extension agent for identification and control recommendations. Diseases Asparagus is troubled by some diseases. If plants have rust colored spots on the stems or branches, ask your county Extension agent what to use.