Tulips to daffodils, snowdrops to fritillaria, spring-flowering bulbs are undeniably pretty additions to any home garden. Plus, you usually only need to plant them once for a years-long show.

If you’ve been bitten by the gardening bug and followed your philosophy “go big or go home,” scooping up a couple hundred spring blooming bulbs at Costco, you may want to take some planting ...