When gardeners seek guidance, they want specific instructions; they need to know what to do and when to do it. After all, successful gardening is largely a matter of organization. To transplant annual flowers into the garden in late spring for example, you must sow each species indoors at the correct point in early spring. If the broad-leaved weed killer you are spreading on your lawn is to be effective, then you must apply it when weeds are growing actively in midspring. The following pages present this kind of specific advice in the form of a year-round calendar of gardening tasks.