trees in large planters - care advice
we have a patio area with 3 large (3 ft diameter ) planters with trees (maple types, red etc.) the area receives limited sun however the trees have done reasonably well over the past 2 years in spite of this.
this spring i plan to use plant tone according to directions and than mulch, is this sufficient or is there something better i could do?
also - my wife insists on planting small annuals at the bottom of the trees in each planter, i maintain that its not a good idea to crowd and rob nutrients from trees which are already restricted by the planter, additionally it makes it more difficult to mulch? any thoughts on this?