This is the 5870th most frequent Russian word.
растущих
"Growing" or "increasing."
Here, 'растущих' is the present participle of 'расти' (to grow), describing trees that are growing.
Я вижу растущих деревья в саду.
I see growing trees in the garden.
In this sentence, 'растущих' metaphorically describes ideas that are expanding or developing.
У нас есть много растущих идей для проекта.
We have many growing ideas for the project.
Here, 'растущих' modifies 'opportunities', referring to market opportunities that are increasing or improving.