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Scarification is often done mechanically, thermally, and chemically. The seeds of many plant species are often impervious to water and gases, thus preventing or delaying germination. Any process designed to make the testa (seed coat) more permeable to water and gases is known as scarification.
Scarifying is normally carried out in autumn or spring. When scarifying or de-thatching, not all thatch should be removed as a small amount of thatch is beneficial to the lawn. A lawn that has excessive thatch may feel spongy when trodden upon. After removing thatch, it can be swept or raked up using a lawn sweeper.
Aeta man from the island of Luzon with a scarified form of indigenous Philippine tattoo, c. 1890s Aboriginal Australian with scarification of the back, 1911. Scarification has been traditionally practiced by darker skinned cultures, possibly because it is usually more visible on darker skinned people than tattoos. [2]
Scarifying teeth, e.g., Young's teeth, were sometimes used to prepare sites for planting, but their most effective use was found to be preparing sites for seeding, particularly in backlog areas carrying light brush and dense herbaceous growth. Rolling choppers found application in treating heavy brush but could be used only on stone-free soils.
A plant which completes its life cycle (i.e. germinates, reproduces, and dies) within two years or growing seasons. Biennial plants usually form a basal rosette of leaves in the first year and then flower and fruit in the second year. bifid Forked; cut in two for about half its length. Compare trifid. bifoliate
A tapestry lawn in Avondale Park, London. The area was previously grassed parkland. A tapestry lawn (also referred to as a grass-free lawn) [1] is a lawn made from a variety of different mowing-tolerant perennial forb species. The overall visual effect of the many species of plants grown together is referred to as a tapestry.
The pros will tell you that late summer is when you should plant grass seeds, whether you’re starting a new lawn or nurturing an existing one. But there’s a lot more to late-summer lawn care ...
Heath vegetation can be extremely plant-species rich, and heathlands of Australia are home to some 3,700 endemic or typical species in addition to numerous less restricted species. [3] The fynbos heathlands of South Africa are second only to tropical rainforests in plant biodiversity with over 7,000 species. [ 4 ]