(Tulsa World) Flowers are guaranteed to bring a smile on Mother's Day this Sunday, but area florists won't start rejoicing until next week. Mother's Day is a close second to Valentine's Day as a flower-buying occasion, which stretches local shops to their limits. "We're glad to see it come, of course, but we're also glad to see it go," said Ron Harrison, owner of All-Around Flowers. "It's a lot of work." Harrison said he has been preparing for Mother's Day for three months. As the holiday grew closer, he brought in 10 extra people to unbox and prepare flowers for his full-time designers. On Saturday alone, he expects to make 80 to 100 deliveries. "We're unlucky this year in that the price of gasoline just went up but lucky in that the weather should be OK. It's hard to deliver flowers when it's raining and the wind is really blowing," Harrison said. By Friday afternoon, much of the buying rush already was over at Mrs. DeHaven's Flower Shop. The store had sold out of cut-flower arrangements. Mrs. DeHaven's, though, still had to deliver most of those orders on Saturday and had hired five temporary staff members to help do so. "It's best for people to be forward-thinking and order ahead for big holidays like this," said Amy Adkins, owner of Mrs. DeHaven's. "Of course, we always try to accommodate last-minute shoppers. Mother's Day Flowers