How far apart and how deep do I plant 40 bulbs of tulips?
Certified GKH Gardening Expert
You will want to plant them in groups of ten a few inches apart. You will also want to plant them about 8 inches deep.
Here is an article with more information in detail: https://www.gardeningknowhow.com/ornamental/bulbs/tulips/tulips-care-and-tulip-planting-tips.htm