[Cynthia, Prescott, AZ]

In Dendrobiums, high Nitrogen in the fall/winter can cause a lot of keikis I am told. I'm with Kevin in that I have done very little fertilizing over the years, and have had to make a supreme effort to see that my plants are getting some fertilizer during the warmer months. Since there is this concern over Dens and fertilizer, I stopped fertilizing altogether earlier this month or late last month, and won't start again until the dormant Dens are starting to grow again. I plan to give some of the other plants, especially those growing or are heavy feeders, some fertilizer by hand. But since this is hard to do, and I am very pressed for time with so many things going on, it will probably not happen. When I can fertilize everything together, I add MSU for RO water to my RO water storage tank, along with a little Physan to keep down the algae in the left over water as it refills.