There’s just not enough of this about

Those who need it sometimes shout!

It’s found in some shops over here

If… you take your turn, my dear

Even then, it’s not for sale

It’s never found near a rail

Gardeners use it to grow flowers

Some know it well in sleepless hours

Can be won in a solo game

With no cards left, you’ll know its name

If the answer’s still not clear to you

Go back to the beginning and start anew