Got my potato's in the ground and was feeling proud of my garlic. Though it'd be fun to share. Those are Tasmanian Purple garlic that we planted in April and in the trenches we have 2kg of pink eyes, 2 more of Kipfler 2 kg of Purple Saphire and 4.5kg of russet potatoes.
You just plant stuff and let it rip, give it a shot, if you don't have land you can always put planters on your porch if you get enough sunlight. Could also always get a cheap LED grow lamp and do it all indoors. Time to harvest depends on what you're growing. Radishes take maybe a month. Except for my radishes, I don't get enough sunlight or something, they grew out all stringy with no root. It was also too hot when I started. I've got this one radish, big fucking leaves, huge, but the root is like my index finger and attached to the ground by a thread