I lifted the plants in October. You let the soil rest over the winter. In organic farming, it's vital to keep the greenhouse and soil free of bacteria and fungus diseases. Present-day farmers often use rock wool or peat, but I stick to soil. Come here, I'll show you." He walked down the path and stopped at the far end. There was a big metal device on the outside. "This is a steam-boiler," Olof Furhage said. "Through the pipes that enter here I pipe in steam, which goes down into the soil and warms it up. That kills off the fungus. I've had it on in the morning, which is why it's so warm in here." Annika watched with great interest. There are so many things one doesn't know. "So when will there be some tomatoes?" she asked politely. "You shouldn't rush tomatoes; the plants become weak and unstable. I start toward the end of February, and by October the plants are up to eighteen feet tall." Annika looked around the greenhouse. "How? The ceiling isn't high enough." Olof Furhage gave another laugh. "Do you see that wire up there?
