What nutes to add to strengthen branches and stem?

[Phillybonker]

Yep. The Vermiculite is an idea. Even the large bags do not really weigh much, they are just bulky.

We have to keep in mind that @Phillybonker has been growing outside with a guerilla style grow so he has to carry in everything he needs without it being obvious what he is doing. I get the feeling that it might be more walking than just a 100 feet (30 meters) from where he parks the car or whatever he uses to get there.

My current grow spots are close to a busy highway, to get compost/gear etc into my grow spots I got to hid it on the side of the highway in the bush at 3AM on a Sunday morning when traffic is at it's quietest. However when I visit my grow sites during the day it would take me about a 40 minute walk from where I park my car.