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Q.Fertilizing Tulips Optimal Choise

Zone 2242552 Nahariya Israel | Anonymous added on September 20, 2022 | Answered

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?

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GKH_Susan
Certified GKH Gardening Expert
Answered on October 1, 2022

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:

https://www.gardeningknowhow.com/ornamental/bulbs/tulips/fertilizing-tulips.htm

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.

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