How do you read 菠薐草?

菠薐草 is read ほうれんそう (Hōrensō).

菠薐草 (Hōrensō)

Spinach

菠薐草 (ほうれんそう, Hōrensō) is Spinach — a Japanese food (plants, vegetables).

Hōrensō means "spinach". Young leaves can be eaten raw as salad, and older leaves are cooked.