Blue Widow grown indoors can yield an average of about 19 ounces of fresh bud per square meter planted. This strain can take an average of about 8 to 9 weeks to flower and be ripe for plucking. This strain can be expected to yield an average of about 35 ounces per plant, when it is cultivated outdoors.strain can take an average of about 8 to 9 weeks to flower and be ripe for plucking. This strain can be expected to yield an average of about 35 ounces per plant, when it is cultivated outdoors.