Put in a rail barrel to collect water off the greenhouse roof. Elevate it if you want to use it for drip irrigation. If you grow climbing plants, you may want to put a bed directly against the fence. It is a free trellis. The greenhouse could serve as one corner of the fence, saving you materials and space.

How wide is your garden cart? 3ft is good but id go 3.5 if youve got the space.

My cart wheels are 29" so 36" gives me a good amount of space, if I go much more I have to loose beds or make them narrower, I already reduced them to 3.5ft (instead of 4ft) to have 36" between. But great advice - I'll play with my plans a bit.

Great minds! I have 2 50-gal rain barrels connected to my wife's #sheshed - so that's 100 gals or rain water. And that's right next to my fenced in garden area. I might add some to the greenhouse to catch that run off too! Thanks!

I think as long as you have enough space to turn you shld be good! I prefer 3.5 over 4 anyways. What are you putting down for paths? Good luck!

Where will your composting efforts take place?

I have a separate area in the yard where I am already composting and cycling through household food waste. It will them be added to the beds when ready.

No plans for chickens.. tho there are free range roosters and hens, don't know who they belong to

Just be sure to plan for an easy way to water, either hoses nearby or drip system. It looks like a great plan.