Hi Jan, >> At 10:23 PM 7/11/99 -0400, you wrote: >> >Does anyone know which of the non-hybrid (or heirloom) tomatoes >> >do well in the winter greenhouse? >> > >> >A member of HGA has sent this inquiry to the HGA Publications >> >Office. Would appreciate any help the listserv can offer. >> > >> >Jan Hale, HGA >> > I contacted Carolyn male and got the following in response to the question of heirloom tomatoes in greenhouses. >> The question about heirlooms and greenhouses or tomatoes in general and greenhouses is complex. Need to know what months the person will be growing in a greenhouse. Regular greenhouse or doing hydroponics? heated or not, which goes along with months to be grown in. High intensity lights or not? The varieties hydroponic growers use are special and most folks don't have all that good luck with non-hydroponic growing if using the greenhouse heated during the winter. My friend Sahin in Holland grows all sorts of heirlooms in a heated greenhouse so I know it can be done, but these are the type of greenhouses where plants are put in the ground and trellised way up high. I doubt most folks can trellis like that in a home greenhouse. That leaves them with determinate varieties to grow and there simply aren't that many good determinate varieties or even semi-determinates. Once you ascertain answers to the growing conditions you might suggest heirloom determinate varietes. If you need names I can provide. But in our hemisphere the light intensity just won't allow for good growing in the winter. Tomatoes must have high light intensity. Those high intensity bulbs are great but horribly expensive. Carolyn<< I know this isn't very promising but there don't seem to be many simple solutions. This seems to be a situation where you have to "go big or stay at home!" I agree with Carolyn about there being few, if any, really good determinate varieties. If a variety isn't all that great to start with it's probably going to lose quality under glass. There is a dwarf variety, "Red Robin," that would probably do well but it certainly is not a viable commercial one. The flavor is outstanding when grown under glass but the production isn't all that great. Chuck Wyatt