Asparagus loves the sun. All weeds and brush should be cut down to allow the asparagus to get as much sun as possible. You can snap off any spears that are about eight inches long. The main problem that gardeners seem to have when growing asparagus is caused by a fungus called Fusarium which causes a condition called Fusarium root rot. This is a serious problem for your asparagus plants.
Prevention seems to be the only solution.
I was advised by my garden center expert to soak my asparagus seeds in a gallon of water with three teaspoons of household bleach in it. Rinse the seeds throughly before planting. One other important thing to remember is to water the asparagus every two or three days during very dry weather. Growing asparagus is not a difficult task. This vegetable thrives if you know a few specific facts.