Asparagus officinalis L. | Plants of the World Online ...
This is to ensure the food generated by the asparagus top growth remains to build up the crown of the plant underground. In the second year, a light crop of spears can be taken although some recommend not taking any. Spears should be harvested when approximately 15 cm tall, cutting them just below soil level. Spears from one plant should be harvested for no more than 68 .