Alien life forms in the garden

Is this a cooking blog or a gardening blog? Sorry if I've rambled on too much about recipes and cooking, but that is the reason I grow anything. I've even taken a bite out of my nasturtiums just to see what they taste like.

I decided to give a quick update on the weird broccoli and/or cauliflower I'm growing. I should have marked which was which, but of course, I didn't, so I don't know whether the Romanesco broccoli is finally forming heads or the veronica cauliflower is cooperating. The heads are really slow to form, but most of the plants are growing to monster-size. These two small ones are in a shady section of my garden, so they're not as big.

The few that are getting on with the show and forming heads look like this:

Most pictures I've seen of either brassica show that the heads are bigger, pointy and lime green. Since mine still have shades of purple, I'm assuming they're not fully formed yet. I've got about half a dozen that have at least started to do something. I will let you know if the others ever form heads and if the ones that do are worth the wait.