The Grow More 5-50-17 Hawaiian Bud & Bloom Fertilizer is a soluble formula that is designed to be incorporated into the root zone by soil drenched method. It can also be done by foliar application. It's a special formula that can be used to all flowering tropical, nea tropical plants, fruiting and even colored foliage. This is recommended as a starter and transplant solution. This product feeds through leaves and roots, and contains no urea that can burn roots. This can be applied as foliar spray, inline fertigation or as soil drench.