The seaweed is much less for K than all the other goodness it brings, like trace elements and minerals. Not much of anything organic is really high in K, but then again, not much is really needed. I also use ProTekt (a liquid silica), for other reasons, but it is also very high in K. It's also used as a pH up and something similar should be very easy to locate down there.
Blood & Bone. Bone meal is pretty slow and should be added well in advance to the mix, like a month or longer in advance. I add it in the fall to my wife's flower beds for the following spring bloom. Blood meal is just the opposite, becoming available in a couple of weeks after adding it, Same flower bed, blood meal gets added 2-3 weeks before new growth is expected to 'pop'. If you can get them seperate rather than combined it would be better, but not essential. Just make sure the bone meal has some time to break down and become available.
Wet
Gotcha. So the seaweed is a must.
The only reason I ask about when to add is because of the back of the blood and bone it says it only lasts 6-8 weeks. So I thought if I put it in early, it'd run out before my plants got there.
So my mix now is
Rooster booster (pellets):
N-3, P-2,K-2
Blood and bone (fine dust):
N-8, P-5, K-1
Seamangus ( granulated seaweed)
N-4, P-1, K-1.5
Mushroom compost
Dolomite lime
I also have the option to add this as well if needed
Dynamic lifter (Pellets):
N - 3.5, P - 2.4, K - 1.6
I'm planning to plant the first mid September. So which would be best, adding all of them after I harvest this season? March - April, or August?
The seeds will be under t-5's for a month before as well.
I'm also going to have 25 plants.