For the topiary

but in colder regions the plants may then need shelter for the winter

Forms large mounds

Spread:125-150 cm

once established with excellent mildew resistance

Maidenhair Fern - adiantum pedatum (NATIVE PERENNIAL) Color:Green For the topiaryNative perennial. Ontario grown. Maidenhair fern has a delicate appearance, forming a medium sized mound of arching black stemmed fronds with light green leaflets arranged in a wide fan. Excellent foliage for using in cut flower arrangements. Plants take a couple of years to reach mature size, appreciating a rich soil that stays evenly moist. Not a good choice for dry shade under thirsty types of trees. Clumps may be divided after 4 to 5 years.