In the ground on the broccoli. We grow Lieutenant and Calabrese. Ours will be caged with circular mesh cages to foil any deer. They like rich well drained soil compost a plus. After you cut the main head you should get lots on smaller side growth. Homegrown broccoli is positively sweet.
I’m presuming broccolini will be similar enough to broccoli then? When should I cut the main head?
I’ve planted ‘Lieutenant’ for three seasons running. I have NEVER grown a better broccoli in all my years of gardening!
It is a ‘Farm Fresh Select’ brand and I buy started plants (6 packs) at Walmart. I’ve let it go all summer long, and it doesn’t bolt in the heat - and these plants are in FULL SUN all day long. It puts out tons of smaller heads (which actually get to be a good size) into the fall if kept well watered.
And, yes. Composted manure really makes a difference, too.