Yes, you should hold off until the heat starts to subside. The rationale is that fertilizer are salts, salts draw water, and they will compete for water with the roots. Especially in zones that are very hot and induce a summer dormancy. Shorth thread but with good info.
Anyone have any good reads concerning fertilizer and extreme heat? Just wondering about the impact summer heat (100+) might have on nutrient absorption. Thanks.
www.bonsainut.com
I noticed this as well, but this year, even my BC's in full water have shown some "bronzing". Last year there was none at all.