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March
Cleanup
Cutback ornamental grasses, all types of Ferns, all varieties of Liriope, Epimedium, Sambucus canadensis, Salix purpurea 'Nana', Cotinus, Buddleia, and Caryopteris. Call the office to determine if any particular Tamarix that's in your design was planted to be cut back.
Prune shrubs and hedges before the bud break. (For hedges, the bottom should be wider than the top.) Prune any summer-flowering shrubs (including Rosa, Hydrangea, Hibiscus syriacus (Rose of Sharon), Spiraea, or Clethra.
Prune vines on trellises as needed. Cut back Clematis paniculata to 1/3 of its size. Do not cut any other Clematis species until after they bloom.
Do not prune any of the "bleeders"-Betula (Birches), Acer (Maples), Cladrastis lutea (Yellowwood)
Fertilize perennial beds when the ground thaws
Apply Mulch if necessary. Do not cover with more than three inches especially around perennials. Do not build mounds around the root flares of trees.
Apply elemental Sulphur or Aluminum Sulphate to acid-loving shrubs that are not a good green color.
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