Tropics where plant is from hotter than that summer time it's like 100 in Columbia
@7Dust2, as someone who has lived in Colombia, I can tell you that many places there are categorized as a tropical rainforest climate, such as Cali. The temperature is rarely over 89 F. But don't take my word for it, here's the summary:
Climate and Average Weather Year Round in Cali Colombia
The climate in Cali is warm, oppressive, and overcast. Over the course of the year, the temperature typically varies from 66°F to 85°Fand is rarely below 64°F or above 89°F.
And here is a useful chart on annual average climate data for Cali. I couldn't upload a screenshot, but here is the link:
Cali Climate, Weather By Month, Average Temperature (Colombia) - Weather Spark
Tropical climates don't have extreme hot and cold, and the highs and lows are fairly moderate in absolute terms. "It's not the heat, it's the humidity" someone in Florida once said. Tropical sativas are long and late flowering, running into February in northern lattitudes, and even flower well in colder temperatures, as Dubi from ACE mentions.
Stunger, sorry about the Mulanje, don't know what to say. Afraid it isn't a quick easy fix. This might be a situation where flushing could help.
As I understand it, you thought the yellowing was a lack of N, so you added more, a half cup of Blood n Bone over the past few weeks. But adding more N did not remedy the problem. Now it looks like way more than a simple deficiency. Like
@DV8 said, some kind of lockout.
Could this be the N-sensitivity some tropical sativas are said to suffer from?
Tropical sativa breeders, Dubi included, write that some tropical sativas do not do well with even normal amounts of fertilizer, particularly N. Arjan of GHS says this too about their haze strains, e.g., Arjan's Strawberry Haze. Example: ACE Green Haze is said to be happier with very little fertilizer and in particular very low amounts of N or even no N amendment. "[Green Haze] requires medium-low levels of nutrients, especially of Nitrogen. For outdoor growing, it’s best to mix a good base of organic soil rich in guano and humus, and then plant the seeds in a sunny place and leave them to grow at their own rhythm almost without using fertilizers or stimulators." Here's a link to that statement:
Green Haze (ACE Seeds) :: Cannabis Strain Info
I never experienced what the consequences of an excessive amount of N would look like in an N-sensitive strain, but this may be what happens. Damn, that Mulanje was a nice looking plant! I sure hope she gets better.
As you know, I am now planning my 2022 haze grow, so am really interested to learn from this. Please post your thoughts going forward.
Cheers,
Emeraldo
.
I was also thinking that it might be too much of the top-dressing, but before trying a flush I was thinking of scraping off whatever is on the top still to make the flushing more effective. Otherwise a lot of that water is just dissolving what was top-dressed.
