Apparently, leatherwood trees produce nectar independent of the temperature in the cool temperate rainforest, accumulating the nectar on cold days when the insects are not active. The nectar stays in the flower to be gathered when the bees become active. Anther opening, on the other hand, is reduced when it is less than 10C. Very neatly adapted!
It is very different thing, when the plant makes nectar and when bees can cather it effectively.
Bees are active and bees gather effectively, are very different things.
Then I invented a term Bees Working Hours, when I had beehive on the balance.
The hive got 5 kg honey one day, when day temp was 25C and next day it got 7 kg when day temp was 29C.... It was 40% more than yesterday. ... WHY?
I would imagine that 29C is worse day because it is so hot.
Then I noticed that bees stopped foraging totally in the evening when temp reached 18C .
In 29C day 18C was reached several hours later than in 25C day.
We can see too that after cold night it takes much more time that the morning warms up, it dries nectar and bees start to forage. And how strong nectar they bring home, it has a big difference.
That week, when I followed what is happening on the hive, bees got 50 kg honey in 7 days. The hive brought in that summer 170 kg honey. Its nect door hive brought as many boxes.
The secret of the good honey flow is not the the minimum things, what plants and bees do. It is better to look maximum limits.