Harenum Growth rates

Ok so why are Harenum growth rates so low. Like actual heck, a radioactive wasteland, and I believe 2 frozen planets all have better growth rates than this planet of sand. Syre and Orcus the soil should be frozen (and on Orcus, incredibly hot in some places), which isn’t really as bad as sand. Also sandy soil is good for some plants (like potatoes and carrots if what I read is correct). Also CA, a planet that is literally on fire has better overall growth rates than a place with some sand. Then there’s a radioactive wasteland… If any plants grow here they should be mutated and have harmful effect on users (like poisonous potato). Meanwhile on Harenum we have some red sand and lowest growth rates on the server. Is this discrimination against a different color of sand?