The phrase "a considerable and growing" is correct and usable in written English.
It can be used to describe something that is significant in size or amount and is increasing over time.
Example: "There is a considerable and growing concern about climate change among scientists and policymakers."
Alternatives: "a significant and increasing" or "a substantial and rising".
In addition, there are increasing calls for the responsible use of power by large institutional investors, which have a considerable and growing influence on the companies in which they invest.
Andrew Neil casts a "considerable and growing shadow", and there are also two references to the "Andy Marr show" and its revered producer Barney Jones (who is beside himself when No 10 pull the PM out of a scheduled interview).
However, we would be wrong to think that the first farming communities of Europe were in tune with nature and each other, as there is a considerable (and growing) body of archaeological data that is indicative of episodes of warfare between these communities.
Although it's still hugely popular, there has been a considerable and growing backlash against the most evangelical of food trends, "clean eating", which, in its terror of bread and pasta, has built an industry around drinking kale juice and pretending that courgettes are the same as spaghetti.
Pharmaceutical expenditure is a considerable and growing cost to health care systems in Western European Union (EU) countries, including Ireland.
The extensive invasion in the study area in eastern Ethiopia now affects a considerable, and growing, portion of Afar (Wakie et al. 2014; Haregewyn et al. 2013; Tilahun and Asfaw 2012).
Despite difficulties, especially in sustained funding and organisational stability, national agricultural research systems contribute to the partnership in terms of their knowledge of diverse production systems, manpower, research-station facilities, and a considerable and still growing capacity in scientific core skills.
While these specific results are of limited generalizability, they provide insight into an issue of considerable and growing importance.
Access, along with the island's considerable and growing amenities, is the key to truly making the island a vital part of New York.
Its spending is considerable, and growing rapidly.
