Garden-anon here.

Seeds planted Sunday; cabbage & cauliflower seedlings 1.5 inches tall today. Full grown in about 7 weeks.

Grow in tray under grow light, or even a standard fluorescent light.

Grow medium - peat moss & perlite. You can even use TP roll innards to grow in … transplant once root system well established.

Never too late to start!!!!

Assume food shortages coming; if they don't you still have fresh home-grown food… better than store-bought win-win!