THE trouble with us gardeners is that we tend to think of time in terms of hours, days and weeks. Plants have no capacity for thinking like that – they have to respond to environmental factors and one of the most important is light. This allows ‘plant time’, where an inbuilt natural clock and calendar is regulated by the time of year and, more precisely, by the duration of day and night length.
Plant’s responses to daylight
Photoperiodism is the term
