Inner ring MUST have a layer of large river stones for air +water to get to trunk, otherwise it will suffocate + kill the tree. The soil will support small shallow rooted plants like Allyssum or Primrose.
Blue Stained Stockade Style Fence Surrounds Garden This stockade style fence is blue stained and features a diamond tipped design. It is the backdrop for a colorful perennial garden that blooms all summer.
Hameln' , a dwarf fountaingrass, crowns a bed of white petunias and 'Purple Dome' aster. The bright white draws your eye to the base of the garden bed in contrast to the grass' crown of tan spikelets. The rust of sedum peeks through from behind the grass.
selecting varieties that offer different shapes and colors. 'Blue Shag' white pine, 'Montgomery' blue spruce, and 'Silver Whispers' Swiss stone pine combine beautifully with 'Profusion White' zinnia, for example. A perfect "Randi" grouping!