Sexto (6), séptimo (7), octavo (8), noveno (9)
These are the ordinal numbers rather than the cardinal numbers normally used.
If the environment is particularly dry, this could stunt the growth of the plant. However, if the genetics of the plant make it so that it does not need as much water to grow, it can still grow as tall as other plants.
It is better to be the head of a mouse than the tail of a lion.
That’s the translation for the sentence.
