This is my first post and I just had a few questions!

I'm a beginner to gardening and I live in Michigan. I have decided that I want to grow some vegetables this spring/summer.

I have chosen kale, broccoli, spinach, carrots, and green beans.

I went to a hydroponics store because I planned on starting the process by germinating and growing some seeds inside before transferring them outside.

I was persuaded to buy some rockwool cubes with holes on the top (5 total) and plan on buying the seeds shortly. I guess my question is, what else do I need besides seeds and the cubes? And how difficult will it be to grow these vegetables inside till they sprout a few inches? Can I just soak the rockwool and put the seeds in, put them in some sun and keep them watered and wait?

Do I need a special tray to put them in? Do I need soil, and or other fertilizers and/or nutrients?

I know these are a lot of questions, I just can't seem to find the answers directly online. Any help is appreciated. Thanks!

While many gardeners routinely grow their own transplants from seed indoors, using rockwool is not common or recommended as it is used primarily in hydroponics and has some unique issues potting mixes do not have.

Personally I would return them to the store that pushed them off on you. But if you want to use rockwool specialty equipment will be needed and the folks on the Hydroponics forum here can best help with that,

Good luck.

Dave