Weeds are a lot like sin. When we don't bother doing anything about them, they grow rampant and consume everything in their path. When we don't acknowledge sin in our life, we're letting it take control and grow through areas of our life we thought we're safe. Sin takes on many different forms and can often appear like a good thing when first encountered, but like the Dandelions, the true nature of sin will soon show itself and spread its spores in our lives multiplying troubles and problems all over the place.
Romans 7:25, "Thanks be to God, who delivers me through Jesus Christ our Lord!"