It's ok to grow, harvest and consume vegetables and fruits, because they are not sentient?

A teaching householder here adviced: "It's ok to grow, harvest and consume vegetables and fruits, because they are not sentient." ("ok" here was to be assumed of having no negative kammic consequences by killing certain beings, nor increasing wrong view on such thoughts.) Is that right, aside of growing wouldn't work with out killing "sentient" perceived being? Is there a mention of sentient satta (living being) different from satta? Doesn't growing involve harming and killing? Doesn't harvest cut of life? Doesn't no worry in consuming increase dependency and neglecting right effort? In the case it would be ok, why seeking to escape from the wheel of food and feeding? Sure good if providing serious counted advices from the Sublime Buddha. *[Note that this gift isn't given for stacks, exchange, feeds, other worldbinding trades, but for a way out of this wheel.]*