Dont put your eggs in 1 basket. Animals, storms, ect can wipe it out. The big thing is are you going to tend or let them grow. Thats 2 differant ball games. Best thing in any case is to have a couple spots with 2 or 3 in the area. How well do you know the area. If there is any hemp within a couple miles in the ditches or creeks then dont plant there. Dont take same way in when visit, be very attentive on how you move when going in. Dont bumb rush and break grass ect down because it will look like a path, walk slow, walk watching every foot step. Dont plant them close together, some states will hit you with cultivation so spread em out. Look online for laws in you state on any of the canna orgs website about laws.
If wanting to irragate auto style here are couple things that can do it if near a water source. Solar panel for a deer corn feeder, 12V marine battery brand new big as you can buy CCA, timer for 12V system, big boat bilge pump. Put the panel high up in a tree and can wire the the timer to the battery and then to the bilge pump. Irragation not perfect it has to be maintanced atleast weekly, dont forget your volt meter. Hit google you can find 12 volt timers.
Here is a soil recipe that has been used alot over the years, just need to play with amounts this for 300 gallons of soil.This will get you to flower no problem, then may need to add some phous to it. Not saying this is the magic recipe but will get you a solid base then can play with once grown in it. This recipe is from mendicino county california for growing there trees. I would say general rule of thumb is to have 2 yds of quality soil per plant if trying to get a lb. 3X3X3 foot is 1 yard, wouldnt go 3 foot down but 2 feet down and wide. 2 feet because most of your feeder roots are in this zone. 27 cu ft in a yard.
You may not get this brand of chicken manure but any will work as long s its not fresh, the bone meal needs to be steamed no matter whos label is on it. This recipe will get hot and kick off because its composting so give it time, if the temp of it is under 85F you can plant in it, be sure when you do because of the nutriant levels in it to have your hole for the plant 4 inches larger all around and 4 inches deeper for the plant. Dig the hole for your plant make sure its deeper and larger than the plant, then fill the hole with unamended soil, then dig the hole for the plant and plant it. The unamemnded soil will give the plant a bit of time to grow and also let the amended soil wick nuteriant into the poor soil. Just reduces transplant shock and nute burn to the plant. If can get plant 12 to 18 inches tall at home then place in the spot will be best method.
25 bags black gold potting soil (1.5cf ea)
4 bags stutzman farms chicken manure (1 cf ea)
1 bag perlite (4 cf ea)
1 bag (50 lbs) bonemeal (steamed, not precipitated)
1/2 bag gypsum (aprox 1/2 cf) - Edit -> 1/2 of a 40 lb bag (20lbs).
Mix well, water thoroughly, let rest for 2-3 weeks minimum, transplant
There are many ways to run outside, best thing I can say is read out door grow sections on various boards, take from all that reading and put together a method for you. If read for a hour or 2 each nite, and on the weekends in a month you will have a good base of knowledge. Reading is nice to see people methods, planing and ideas, but it takes couple seasons to really get results. Reading is the key though learn from others good and bad experiances.
1 thing you got to know is your climate, humidty temps. This is going to dictate your strains finish times and what strain you can grow for your latitude.