Readers of the Minneapolis Sunday Tribune are familiar over the years with George Luxton's homely advice and bits of garden lore-""Graham's sayings""- and practical instructions in his newspaper columns. Other ""northern"" gardeners- and this applies to New England gardeners as well, will find this almanac of gardeners' know- how provocative and useful. Starting with January, he has both the indoor window box gardener and the impatient outdoor gardener in mind -- and there's plenty to do for both. Month by month he takes the demands of the season, the problems of specific plants, the guides to planting, cultivating, protecting, fortifying for healthy growth, prolonged bloom, etc. Throughout the text there are hints on varieties, supplemented by excellent lists at the back. Even the most experienced gardener will find helpful suggestions throughout- all presented in chatty style, down to earth enough for the beginner, but stimulating in occasional bits for even the semi-professional. Fills a definite need for the long winter-short growing season areas.