Q.Fertilizing Tulips Optimal Choise
1. what is the preferred method? twice a week adding the fertilizer dissolved and diluted in the irrigation during the first 2 active growing months? or layered once on top of the bulbs while planting as slow release solid pellets (i.e. Osmocoat)? 2. If using liquid fertilizer I can adjust the pH. What is considered the optimal pH for a tulip fertilizer?
Certified GKH Gardening Expert
Tulips should be fertilized in the fall on top of the soil, not under the tulip bulb. A slow release fertilizer (ratio 9-9-6) will work well. Here is more:
They prefer a slightly acidic to neutral soil pH (7.0 is fine). Your liquid fertilizer label will tell you if its reaction is acidic or basic. I would make it easy on myself and go with the slow release.