Question

What types of sentence is this? daylilies- hardy perennial plants of the lily family- are popular for home gardens due to their low maintenance nature and their tolerance of both drought and frost

Answer 1

Believe it or not, this sentence is simple.

Yes, it is quite long, but it has one subject (daylilies) and one verb (are). As a result there is one independent clause. 

This single independent clause has some adverb and adjective phrases, but the sentence is still a simple one.