What's your favorite Crabgrass timeline description?
A check this morning of online pre-emergent advice from universities, blogs, lawn care sites and fertilizer companies turned up more than 20 different ways to describe when to apply (I quit counting when I ran out of toes). I saw: Multiple dates in each month from January thru May; Soil temps from 52 - 60 for 3 consecutive days up to 10 consecutive days;When Forsythia blooms, when Forsythia blooms begin to wilt, when Forsythia blooms fall off;When dandelions appear, but before they turn to puffballs; When Eastern Redbuds first bloom and when they are in full bloom; Same for dogwoods; When Azaleas bloom; And info as precise as .... a few weeks before the crabgrass starts to grow. That one was especially helpful.
Which do each of you prefer?