Spicy Mushroom said:What's the temps been like?
ColdSmoke said:temps range from 60-80 daytime and 43-55 at night.
haven't tested pH. I need to get a test kit.
gasificada said:
Ah, my guess at this point would deffo be the cold then, and in which case, she should come good when it warms up a bit.
That's not to rule out pH or other issues, though.....
ColdSmoke said:Actually now that I look...it's been a low of 50 at night. Almost never in the 40s. Still think weather?
Agreed. With all that fir bark it sounds like you've made a personalized version of the 5-1-1 mix. I'd try a low dose of nutes with your next watering. If things green up continue with the low dose regularly.40-60 is just fine and shouldn't cause that... Looks more like nitrogen / nuts defficincy. If they have been there 4 weeks I would throw mutes at them..
AaronRiot said:Agreed. With all that fir bark it sounds like you've made a personalized version of the 5-1-1 mix. I'd try a low dose of nutes with your next watering. If things green up continue with the low dose regularly. How is the water retention with all that compost/mulch in there? Do you get a perched water table in the bottom if you flood the pots completely? My bark mix seems to be impossible to overwater but it's a bit different from yours. Sweet score on the fir bark.
AaronRiot said:Basically, if you were to really soak the pot, would the water drain out completely leaving only wet bark/mulch/compost, or would you find that the bottom few inches still full of water "perched" because the force of it sticking to the small particulate and itself is stronger than the force of gravity pulling it down? Just asking because you're using a lot of bark, which may mean very good drainage due to it's large particulate size (water can't hold or "perch" itself up with larger bits -- they get coated, soaked, and gravity pulls down the rest, consequently pulling air down and preventing wet feet). If this is the case, I doubt you could be over-watering it. However if it does hold a lot of water your plants could very easily be over-watered, which from my very limited experience is extremely easy to do.
AaronTT said:Looks like a magnesium deficiency, or maybe even nitrogen. Magnesium is essential for the green part of chlorophyll, as the very color in it requires an ion of magnesium to be green. Some cheap epsom salts might correct this. I am also gauging the other leaves which seems a little yellow then they should be, even for its age. Also although others may disagree with me, I am not a fan of using bark or other types of wood chips, branches or similar in a soil mix. Reason being that they can drain the soil of nitrogen, because they take a long long time to break down and compost. Some pieces can take years to breakdown. This composting action requires nitrogen and can rob the plant. One good rule of thumb is to avoid any thick pieces of wood or branches because of this reason. I have had lots of failures growing with too much un-composted woody material. I avoid anything that takes a significant period of time to breakdown, and that generally speaking is pieces of wood. If its been composted already and breaks easily in your hand into fine particles, its okay. If it remains hard, throw it out.