A trip down nursery aisles bursting with flowers is pure temptation. How to make wise choices? Start by avoiding any warm-season growers like petunias and zinnias; they will fade quickly now. Instead look for cool-season annuals like stock, pansies, violas, primroses, poppies and the like. Pick plants that are vegetative or in bud, not bloom; they'll have the longest life and bloom period in the garden. When planting, if the plants are root-bound, loosen the bottom roots before putting them in the ground. Annuals are hungry plants; satisfy them with some high-bloom fertilizer right after planting and several times in the growing season.