Lead Price 0.99 USD/lb (2,185.00 USD/t | 2,033.35 EUR/t) 18 Apr 2017 - 52 Week Low 0.75 USD/lb 52 Week High 1.12 USD/lb.
Feed with an acid-forming azalea or camellia fertilizer in spring, after the flowers have dropped; fertilize again in the midsummer if growth seems sluggish or foliage looks sparse and begins to lose its deep green color (take care to water the plants the day before feeding in summer).
The best time as to when to fertilize tulips is in the fall. At this time, the tulip bulbs are sending out roots to prepare for the winter and are in the best possible shape to take up the nutrients in the tulip bulb fertilizer. Do not fertilize tulips in spring.