[Pollard]

Bok Choy is a cabbage/brassica and the Asian greens I planted are brassica.

Seems like the leafy stuff isn’t quite as hungry as head or thick stalk forming are because mustard is a brassica and did ok here but cauliflower/broccoli, not so much. I really don’t know if it’s pH or N though and didn’t know if someone might have some brassica tips.

[Pollard]

But what I’ve read, plus your brussel sprouts experience tells me head/stalk forming(even little ones) or anything other than leafy greens need plenty of N.

The cauliflower and broccoli I tried one year here did ok but didn’t get big. That’s probably lack of N

Any special reason for the iron or just something that comes with bloodmeal?

[Pete from Shawnee Mission]

Pollard, stagger your bok choy plantings. I grew small bok choy once and once they started to bolt they got very tall and leggy. You need to harvest as soon as the flowering top starts to show. Same for Chinesee Cabbage.

Once you have your high tunnel up you will have a real advantage in doing winter vegetable plantings. (Remember however there is less sun per day so you can no longer rely on the stated "Matures In" dates on seed packages! )