seanny and vegan potato man thanks for the info about rice hulls and silica. i had never heard of silica as a possible amendment before.
vegan potato man, i'm trying to figure out the typical percentage of organic material in my media. i guess bark counts as organic?
today i decided to try inarching my soursop seedling and my cherimoya seedling. they were mixed with other seedlings...
the white pot, which was in a greenhouse, included spanish lime, soursop and panache fig. the semi-hydro pot, which was outside, included mandelo, cherimoya and surinam cherry. i removed the seedlings from the pots and inspected the roots that had been in the resevoir of the semi-hydro pot...
not sure whose roots those were but they looked ok. this particular media contained quite a bit of pumice. here were all the seedlings laid out...
from left to right, spanish lime, soursop, panache fig, mandelo, surinam cherry and cherimoya. somehow i underestimated the fig's vigor. its roots dominated the pot, so comparing the two pots isn't so useful. i was kinda curious whether the fruits would turn out striped or not. for all i know it's a male fig. not sure what happened to that surinam cherry. the mandelo seemed happy, it's my 1st time growing citrus from seed. i wonder how the fruit will turn out. hopefully it won't be as seedy as its mother.
here was the result of the inarching...
they are currently in the greenhouse. i read in this forum about soursop being grafted onto cherimoya rootstock but i didn't get the impression that it was superior to a soursop on its own. if my two seedlings successfully combine then i'll leave them be and see if it makes a difference.