11.   One is a large tax-free area, selling not only predictable souvenirs like cheeses, herrings and tulip bulbs, but also porcelain, diamonds and even medical instruments.

12.   Plant tulip bulbs while the soil is still warm.

13.   Psychology alone drives the stock market, he said, as much now as three centuries ago when the mania was for tulip bulbs rather than shares.

14.   Q. Some critter has been digging up my tulip bulbs and pulling up petunias by the clump, making a mess.

15.   The ideal soil makeup for tulip bulbs is a sandy, organically enriched soil.

16.   The Tulip Era peaked under Sultan Ahmed III, who imported millions of tulip bulbs from Holland and spent fortunes on extravagant tulip festivals.

17.   Tulip bulbs are introduced to the Netherlands from Constantinople by Dutch botanist Carolus Clusius, leading to an intense speculative bubble, and eventually the international flower bulb industry.

18.   Tulip bulbs are trickier to grow in the Valley, say nursery staff.

19.   Tulip bulbs were saved and will be replanted throughout the development in gardens and along walkways.

20.   Within each tulip bulb are the beginnings of several daughter bulbs.