36 THE GARDEN OF THE WORLD 
shelter from the wind and rain, and the bees 
may have a feast. 
The Jimson weed also waits for four o’clock 
to entertain the sphinx moth because its nectar 
tubes are too long and narrow for any other 
insect to reach. Sometimes it opens early and 
the bees come and take the pollen. 
The beautiful evening primrose stays closed 
all day to protect its pollen from bees and flies, 
for it is also waiting for the sphinx moth. If 
the moth misses a flower, that flower stays open 
in the morning until a bumblebee visits it. It 
must be pollinated at once because its petals last 
only one day. 
There is a family of blossoms called the Catch- 
flies. The night blooming catchfly is a pale 
pink and has a sweet perfume to attract the 
moths. The day blooming catchfly has no 
odor at all, but has bright colors to guide the 
butterflies which fly by day. 
On the whole, colored flowers bloom by day 
and close at night, while white flowers open at 
night and have the sweetest perfume. There 
