Depending on the vegetation type or combinations of species, the high-impact herbaceous plantings in naturalistic parks may require more or less maintenance than woodland herbaceous communities. Changes in the soil, in mutual competition and in climate all exert their own particular influence over the years. Many species thrive during short peaks
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10.3
(a) Royal Fern (Osmunda regalis) amongst heathland vegetation.
(b) Royal Fern and Bog Asphodel (Nasthecium ossifragum) in a woodland glade.
(c) Emerging Royal Fern fronds with clumps of Amenlanchier
and then decline, others may proliferate over large spaces and subsequently have to expand into new areas in order to maintain their population.
