From Fall Planting to a Winter Nap

Last fall, the Egan Landscape Group team spent days in The Pinehills, mapping out soil depths and ensuring each bulb was perfectly positioned for success. Once the ground froze and the first flakes fell, these tulips were tucked under a thick, insulating blanket of snow.

While it looked like nothing was happening on the surface, that cold period is actually essential. Tulips require a process called vernalization, a fancy way of saying they need a “cold snap” to trigger their internal clock to bloom when the ground finally warms up.

The Secret Life of Bulbs Underground

You might wonder: What exactly are those bulbs doing under the frost line all winter? It’s more active than you think!

• Root Development: Even in the cold, bulbs are establishing a strong root system to anchor themselves for the spring “push.”
• Nutrient Storage: Think of a bulb as a tiny, organic battery. It stores all the energy the plant needs to grow 12 inches in just a few weeks.
• Waiting for the Signal: As the snow melts and the soil temperature rises, the bulb senses the change and begins its upward journey toward the sunlight.

Fun Facts About Your Favorite Spring Bloom

Tulips aren’t just beautiful; they’re actually quite “smart” plants. Here are a few things you might not know:

• They’re Sun-Seekers: Tulips exhibit photonasty. They physically open their petals in the morning sun to invite pollinators and close tightly at night or on cloudy days to protect their pollen.
• Growth Spurt: Even after they are cut and put in a vase, tulips can continue to grow up to an inch in height!

• Thirsty Travelers: Tulips are “heavy drinkers” in a vase; they use water to maintain cell pressure to stand upright, so you’ll likely need to refill their water daily to keep them from drooping.

• Color Pigment Mixology: Their vibrant hues come from two main types of pigments: carotenoids (for yellows and oranges) and anthocyanins (for reds and purples). The specific combination and concentration of these pigments within the petals determine every shade you see.