Sentence:  Closely related calibrachoas, often called miniature <WSD>petunias</WSD>, offer dainty <WSD>petunia</WSD>-like blossoms that are perfect for planting in pots. / No matter what type of <WSD>petunias</WSD> you choose, they all prefer plenty of sun. 
Meaning of the word marked with <WSD> tags:  Any of the flowering plants of genus "Petunia", of which most garden varieties are hybrids.