Steve, are you starting that celeriac from seed or are you finding nursery plants?? That sounds like a perfect solution to the celery problem... Thanks!
The little celeriac plants grow slowly :/ in my greenhouse. I suppose I could say that they grow slowly in the garden as well. But, by autumn, they've packed a lot of nutrients into the bulb. I think you could use the leaves just like leaf celery thru the summer but I've never done that. . . . just wait for harvest-time .
The bugs and things haven't bothered them but water seems to be important as does good soil fertility.
Steve
ETA: I see that Johnny's now has Brilliant Celeriac instead of Diamant. Maybe I'll try a new variety in '10 .
I've had horrible celery experiences as well. The seedlings that didn't damp off, croaked in our clayey soil.
When I lived in PA, there was this one farm, Hodecker's, that did the very best celery ever. Tender, crisp, not at all bitter, just incredible. Apparently the trick is getting an insane amount of cow manure from the neighboring dairy farm to spread on the field, and having child labor to hill up the soil around the plants. :/
Should I ever run across an insane amount of cow manure, I might try it again. Unfortunately, our neighbors who keep cattle already have their manure spoken for in the spring.