Domolite lime will help, ph outdoors isnt much an issue if your organic, synthetic nutrients require ph adjustments or you will have lockout defiencies/toxicity as synthetic nutrients availbility depend on ph.
If you're organic don't worry about ph, the manures and microbial life will adjust the pH for the plant. Hiowever, if your liquid feeding organics or chems, don't only give high N during veg, s this lowers the pH. Also give high P, which is base (high pH). Veg ferts are acidic, flowering ferts are base. I just place all in the soil and water with any running water I find. If in a swamp, use a lot of lime. I build my own peat based soil mix and I add 5 cups of lime per bale of . Swamps require 5-10 pounds placed under to raise the swamp water's pH.