Getting the Most from Perennial Tulips
To encourage perennial tulips to bloom again in future years, we recommend that you do the following:
- Fertilize the bulbs when the foliage pushes through the soil in early spring. Don’t overdo it. A light scattering of a low-nitrogen fertilizer, preferably organic, is enough.
- Remove the spent flowers as soon as the bulbs finish blooming. Snapping off the top 3 inches of the flower stem prevents seed formation and focuses energy instead on bulb growth.
- Allow the foliage to yellow and wither completely before you remove it.
- Avoid summer irrigation. Tulips prefer to be dry during their dormancy.