Posted by peter drake on 11/2/2005, 8:47 pm, in reply to "Re: failed flushes on revoluta seedlings"
24.110.122.172
I don't think heat is the issue, the seedlings are in the shade, on the north side of my house, and recieve regular water. Not sure about the fertalizer...I apply Osmocote about 3-4 times a year, and the old is usually gone before new application...However, I did apply about half the recommended amount of your cycad fertalizer, but I don't think that could be the cause??? The seedlings are 2 years old, so they are holding a good number of leafs, and the caudex is about golf ball size, with roots creeping out the bottom drain hole. I am stumped, Tom. I am currently taking a horticulture science class, and we can't decipher the condition. The previous flushes are perfect, but the last 5-6 individual leafs are deeply keeled, light green, followed by burning of the individual leaf segments. Now, 3 new leaf tips are emerging, but just fall apart to "fuzzy fingers". I use a well drained mix of 1/3 quartz blasting sand, 1/3 turfas (a handy little man-made rock that Disney uses for all their landscape) and 1/3 decomposed pine bark. I have a dozen other seedlings from Zamias to other Cycas in the same area which are thriving, so the conditions appear ideal for seedlings...The caudex of the damaged plants are hard, with no sign of rot.
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