How to fertilize norway spruce?

I'm thrilled to tell you that the best time to fertilize is in the early spring, right after the last frost. For optimal results, use a NPK ratio of 20-20-20 — it's that simple!

You can use Holy Tone organic fertilizer is perfect for your tree. Just place it around the drip edge of your tree!

I've got this plant, and I'd recommend using Multi Purpose 10-10-10 Fertilizer in the spring and fall to encourage growth.

Fertilize your Norway Spruce tree with a balanced, granular fertilizer in early spring and certainly before new growth appears.