5 garden tips for this week, April 28-May 4

1 Citrus feedings
Within the next couple of weeks feed citrus trees again — the third of four annual feedings for mature citrus trees. Citrus trees need high-nitrogen citrus food about every six weeks in the first half of the year (late January, mid-March, late April/early May, and mid-June).
Since one pound of any dry fertilizer equals about two cups, that means each mature tree should get about six cups of 15-15-15 plant food, or four cups of ammonium sulfate (formula 21-0-0), two overfl