Astilbes in a woodland garden. There is no distinguishable pattern to the colours, but the random placement of plants work because the hues are complementary
Keep the fern in the same pots they come in, every other day submerge them in a 5 gallon bucket filled with 1/2 cup of epson salts & 3 gallons of regular water until the soil stops bubbling, then hang up to drip dry... ferns will be dark green, glossy, and 3x3 by September from ferns that start out with 7 fronds in May.
Lysimachia nummularia 'Aurea' (Golden Creeping Jenny) - A rapidly spreading ground cover that tolerates all soils and even some shade, but in full sun it produces bright yellow-green leaves that remain evergreen year round in all parts of New England. Tough enough to plant next to a foot path but requires heavy pruning in spring if you want to keep it tidy.