【求助】请问有人知道九层塔吗？(是种香料)

我想买到种叫九层塔的香料，请问这里有人知道吗？然后哪里有得卖？英语叫Ocimum basilicum L.，别名：罗勒。亞灌木狀草本，老莖圓形，嫩莖方形，莖上密生短毛。葉對生，卵形或披針形，有長葉柄，全緣或細淺不一的紫褐色。具異香，喜陽耐陰。

basilicum = basil

it's sold in all supermarket, some are even planted in the pots, you can find them with the name on the pots

most of them are 1-2euro per pot

it's also avaliable in all the turkish or indonician shops