You are reading this post either out of curiosity, because you forgot to plant tulips last winter, or with the intention of beginning your gardening journey this upcoming spring by planting tulips. Rest assured, you’ve come to the right place.
Tulips are typically planted in the fall, as they require a period of cold stratification to bloom successfully. Cold stratification is a process in which the bulbs experience a period of cold temperatures, usually in winter, to break dormancy and initiate flowering. I experimented with planting tulips in Spring this year.
Experiment: Planting Tulips in Spring
I saved some bulbs from the previous year, 2021, and purchased additional fresh bulbs from a local nursery last fall.
Pre-Chilling Period
Tulip bulbs require a period of cold stratification, a chilling period, to break dormancy and bloom successfully. In their natural environment, tulip bulbs experience winter cold before flowering in the spring. I store tulip bulbs in a mesh bag and place them in the vegetable drawer of the fridge for around 12 weeks to simulate the chilling period they would experience in the ground.
Planting in Spring
I planted the bulbs in several pots about 6 weeks before the last frost, which occurred at the end of March. Living in Zone 4, our last frost day is typically in early May. I watered them by covering the pots with snow, which melted within a few hours as the greenhouse was warm enough.
Results of Planting Tulips in Spring
Most of the bulbs started sprouting within a few weeks. Some tulips bloomed around late April and early May, while others produced plenty of leaves but did not bloom. Additionally, the bloomed flowers wilted more quickly. The tulips in the picture below are the ones I planted in spring.
Here is another set of tulips that underwent winterization beneath the ground.
Conclusion: Is It Okay to Plant Tulips in Spring?
You can indeed plant tulips in the spring if you store them properly, ensuring they undergo a pre-chilling period.
However, tulips planted in the fall tend to be healthier, stronger, and have a longer blooming period compared to those planted in the spring. It’s important to note that attempting to plant tulip bulbs in the spring may lead to insufficient chilling, resulting in a lack of blooms or the production of weak and stunted flowers. Moreover, spring-planted tulip bulbs may be more susceptible to disease and pests.
For vibrant tulip blooms in the spring, the optimal practice is to plant bulbs in the fall, ideally a few weeks before the ground freezes. This allows the bulbs to establish roots and experience the necessary cold period for their growth cycle.
The good news is that, depending on your climate and USDA zone, you might still have the opportunity to plant tulips after the fall if your soil is workable. Check the soil conditions – you might not be too late to plant tulips!
If you are interested in learning how to grow tulips, please read “How to Grow Tulips: The Flower of Spring.”
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