Highgrowing is a term used to describe plants or crops that grow to great heights. However, there are several other synonyms that can be used to describe highgrowing. Some of the other words that can be used to describe highgrowing include towering, lofty, sky-high, soaring, and elevated. These words can be used to evoke the image of plants or crops that grow to great heights and create a majestic appearance. By using these synonyms, writers can paint a vivid picture of the growth and overall appearance of plants or crops that grow to impressive heights.