养植物的英文

可以直接说My grandfather raise many plants and animals in his yard。raise可以用来表示to grow or breed（种植，饲养）

plant flowers 或grow flowers

一般不会用 通常习惯于用keep haveThe(My) keeps/has many/a lot of animals and plants in his yard.

Grandpa raised many animals and plant many flowers in his yard.

MY GRANTFATHER LOOK AFTER A LOT OF PLANTS AND ANIMALS IN THE YARD

养花的说法太多了，随便说几种吧！keep flowerflower cultivation grow flower floriculture都可以的。