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If you dream of the Dutch fields full of perfect tulips but find your fall-planted bulbs disappointing come spring, then maybe your bulbs are just hungry. While bulbs are rather self-contained little packages, the one thing they can use during the long winter is phosphorus and lots of it. This macro-nutrient drives root growth which helps your bulbs become better established come bloom time. The age-old organic way to get it is with bone meal. Dig your hole, then loosen the soil at the bottom, add one tablespoon of bone meal and mix well. Then set your big, juicy tulip bulb onto this soft enriched earth and cover it up. For smaller bulbs use a half tablespoon. Remember, this nutrient doesn’t move much so if you don’t put it down there, roots won’t find it.