We have just started fixing up our back yard. So far I have planted a few containers, we have poured a concrete deck, bought patio furinture & i have started started a perennial bed. The bed is 4 feet deep, 10 feet at longest point & 5 feet at the shortest. Gets about 6 hrs of sun. So far I have put in a hosta, spirea, & ?cushion spurge(euphorbe) & a lilly (not yet planted). Looking for suggestions of other perennials, how many more to fill the space, etc, what zone am I in( newfoundland )- I know nothing about gardening - please help!