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A perennial plant has a growing season and a dormant season, and it can survive through the frost to grow again the next year. Annuals, however, survive for one growing season only. Once they die ...
Above the species level, plant lineages clearly vary in their tendency for annuality or perenniality (e.g., wheat vs. oaks). On a microevolutionary timescale, a single plant species may show different annual or perennial ecotypes (e.g., adapted to dry or tropical range), as in the case of the wild progenitor of rice (Oryza rufipogon).
Gardeners can take a cue from nature and use winter as a time to plant seeds of a variety of annual and perennial flowers. Winter is also a great time to plant dormant trees and shrubs, including ...
Some perennial plants are protected from wildfires because they have underground roots that produce adventitious shoots, bulbs, crowns, or stems; [18] other perennials like trees and shrubs may have thick cork layers that protect the stems. Herbaceous perennials from temperate and alpine regions of the world can tolerate the cold during winter.
Erosion control: Because plant materials (stems, crowns, etc.) can remain in place year-round, topsoil erosion due to wind and rainfall/irrigation is reduced [11]; Water-use efficiency: Because these crops tend to be deeper and more fibrously-rooted than their annual counterparts, they are able to hold onto soil moisture more efficiently, [12] while filtering pollutants (e.g. excess nitrogen ...
Why does my chaste tree produce very few flowers? The reason behind poor flowering is most likely lack of sunlight. Chaste trees need a minimum of 6 hours of direct sun per day.