Detailed Instructions: In this task, we ask you to rewrite a sentence in simple English without changing its general meaning. Essentially, you want to make the sentence easier to read by using simpler words, utilizing more straightforward sentence structures, and omitting non-essential information etc.
Problem:Many grevilleas have a propensity to interbreed freely , and extensive hybridisation and selection of horticulturally desirable attributes has led to the commercial release of many named cultivars .
Solution:
Many grevilleas interbreed freely , and some specially picked hybrids have been grown for sale .