Fill them with potting soil.

他们盆栽土填土。

They were potting at a tiger there.

他们正在那里射击一只老虎。

He rooted the tulip bulbs in potting soil.

他把郁金香的鳞茎种在盆栽用土中使其生根。

He rooted the tulip bulbs in potting soil.

他将郁金香球茎植在盆栽土里，等着生根。

They can also be found in soil and potting mix.

它们还可在土壤和花盆混合土中找到。