"peak flowering" is a correct and usable phrase in written English.
It is generally used to describe the time when a plant or flower is at its highest level of blooming. Example: The garden was in full bloom, with the roses reaching their peak flowering in the warm summer sun.
Its breeding is timed to coincide with the peak flowering season in a given area.
The first time period extracted relevant data from herbarium specimens collected between 1848 and 1958; and the second time period recorded observed peak flowering times for this orchid species in the field between 1975 and 2006.
In that paper, the authors examined field records of flowering times for the early spider-orchid, Ophrys sphegodes, for two time periods and compared the shift in peak flowering times to historical springtime temperature variations (doi 10.1111/j.1365-2745.2010.01727.x).
We monitored pollinator activity in fields every two weeks throughout peak flowering with visual surveys.
Surveys were carried out after the main winter rain had ceased in the spring, at the time of peak flowering.
According to peak flowering phenology, the shrubland, broad-leaved meadow and most life-forms showed two flowering peaks, the first during the short-dry season and the second during the rainy season.
The current flora of the winter rainfall region shows a peak of flowering in the spring (September-October), while that of the nonseasonal rainfall region shows a peak in late-spring/early summer (October-November)[ 35].
All over the south and east of England, woods are suffering the effects of the worst drought in three decades, which, while bringing the peak bluebell flowering forward to the bank holidays, has also impaired their growth.
Flower visitors were observed in the field over the peak of flowering in 2010 and 2011 on sunny days.
The glory of summer may be over in most gardens but Carol goes to Worcestershire in search of some autumn colour, in a garden designed to reach its peak of flowering right now.
However, figures for relative investment into plant parts cannot be compared directly from two reasons: first, the measurements for G. lutea were obtained at the peak of flowering season, these for G. bulbifera near seed maturation, whereas the measured plants of G. graeca were already completely dried at the time of measurement.
