Love your summer garden but hate having bindii all through the lawn? August is the best month to remove it for good, before it sets those nasty seeds in spring.
The safest, chemical-free way is by hand, with a weed-remover fork, or by pouring boiling water on each plant. But if your lawn is too big for that, or overrun with the devilish weed, see your local nursery for a selective herbicide.