I agree with Chuck. Some of them are outmoded, and appear in print rather than in everyday usage. Some of them are not idioms at all. See below:
All flowers are not in one garden - Proverb (never heard it) but seems to mean you can't find everything in one place.
An oak is not felled with one stroke - Proverb (don't think I've heard it) but seems to mean a big job takes time and effort.
bush telegraph - a rapid informal network by which information or gossip is spread
everything coming up roses - all is going well/successfully
flourish like a bay tree - never heard it
leaves without figs - never heard it
gild the lily - (try to) improve on perfection
Let grass grow under one’s feet - act slowly, dawdle, do nothing, so that everything else overtakes you
oops-a-daisy - said when you make a mistake, same as oops (but especially for children)
old chestnut - a joke or story that has been repeated so many times that is has become boring
Bail of Hay - collocation
Blade of Grass - collocation
Field of Wheat - collocation
See classifiers at: http://www.englishclub.com/vocabulary/c ... -lists.htm
Peckham Rye - a place in London, UK
Tit-willow - title of a song from The Mikado
(by Gilbert & Sullivan)
On a tree by a river a little tom-tit
Sang "Willow, titwillow, titwillow"