Budding landscape architect and plantswoman, Ginny, came up with an elegant arrangement for the new Hypertufa Troughs that the the North American Rock Garden Society grant allowed the arboretum to purchase. Everyone worked on mixing the media solution that Tim came up with, and filling and planting the troughs. Here Jeremy is mulching the nearly finished troughs with gravel.
Here is Tim’s magic formula for trough mix: 5 parts compost, 2 Permatill, 1 bark mulch and 1 soil. – Don