I've found that using Tordon RTU is a good chemical to use after you cut a section out of the ivy. It comes in a quart squeeze bottle and you just put enough on the plant to cover the fresh cut area. I've used it even in winter and it did well, wh...
When we lived in the city, I used to start growing my tomatoes in the basement under lights and in pots. Then just moved them out to the porch when it was warm enough. That left more room in my garden for greens and other things.
I actually planted broccolli in one of my food plots for wildlife one year. (had a BUNCH leftover from the greenhouse) Seemed like the skunks, raccoons, and possums just dug around the roots for insects (grubs, etc). The deer clipped them off quit...
Sounds like a communal garden that we have here. As long as people are given a choice on what to do and how they can work things out with others, it seems to go along nicely. Being too strict with guidelines and requirements can be a big problem, ...
Might be a good idea to get a soil sample. Sometimes micro nutrients can be a bigger deal than the macros.
About the carrots and onions... I've had real good luck with mixing in leaf litter with my grass clippings for areas with our edible roots. ...
I'm an agronomist by trade and brought up to be gentle with the land and preserve it. I've worked in two different greenhouses and think plants are cool. Wierd, I know.
I currently have a half acre garden, half of which is black raspberries and about 3 acres of food plots for wildlife to munch on, instead of my garden. I also have about 1 acre worth of fruit trees divided between apricots, pears, apples, and cherries.
I work at a farmers cooperative and have worked with livestock feeds and animal health. Hogs and cattle primarily, but also goats, chickens, alpacas, horses, and rabbits. I absolutely love living in the country and being a land steward. I don't know what I'd do if I couldn't do what I'm doing now!