When to Plant Spring Bulbs in Boise
September 23, 2026 | News
If you want a garden full of tulips, daffodils and colorful spring blooms, fall is the time to get planting.
Spring-flowering bulbs need time in the ground before winter so they can establish roots and go through the cold period they need to bloom beautifully when spring arrives. For gardeners in Boise and the Treasure Valley, that makes fall an ideal time to plant.
Here’s what to know before you put those bulbs in the ground.
When Should You Plant Spring Bulbs in Boise?
For most spring-flowering bulbs, fall is the best time to plant in Boise.
A good rule of thumb is to plant bulbs once temperatures begin to cool but while the ground is still workable. This gives bulbs time to develop a strong root system before the ground freezes.
For Boise gardeners, that generally means September through November, depending on the weather and the type of bulb.
Don’t worry if you haven’t planted yet and it’s already getting late in the fall. As long as the ground isn’t frozen, it’s often still worth planting.
Why Do Spring Bulbs Need to Be Planted in Fall?
It might seem strange to put something that blooms in spring into the ground months before you’ll see anything above the soil.
But that’s exactly what spring bulbs need.
Bulbs such as tulips and daffodils need a period of cold temperatures in order to properly develop their flowers. Planting in fall allows them to establish roots before winter and prepare for their spring show.
Think of fall planting as giving your bulbs a head start.
How Deep Should You Plant Bulbs?
A general rule is to plant bulbs at a depth of about 2-3 times the height of the bulb.
For example, a bulb that is 2 inches tall would generally be planted about 4-6 inches deep.
Always check the planting recommendations for the specific bulb you’re planting, since ideal depth can vary.
Plant bulbs with the pointed end facing up and the roots or flatter end facing down.
Where Should You Plant Spring Bulbs?
Most spring-flowering bulbs perform best in a location with full sun to part sun and well-draining soil.
When choosing a spot, think about what the area will look like in spring, not just what it looks like when you’re planting in fall.
Good locations can include:
- Garden beds
- Around trees
- Along walkways
- Around entryways
- Containers
- Mixed perennial beds
- Areas where you want an early pop of color
Keep in mind that areas shaded by deciduous trees in summer may receive plenty of sunlight in early spring before the trees leaf out.
Which Spring Bulbs Should You Plant?
Tulips
Tulips are a spring garden favorite for good reason. They come in an incredible range of colors, shapes and bloom times, making it easy to create everything from a classic spring garden to a bold, colorful display.
Daffodils
Daffodils are cheerful, reliable spring bloomers that bring bright yellow and white flowers to the garden. They’re also a great choice for naturalizing and returning year after year.
Crocuses
Crocuses are some of the earliest flowers to appear in spring. Their smaller size makes them perfect for rock gardens, borders and planting in groups.
Hyacinths
Hyacinths aren’t just colorful, they’re fragrant, too. Plant them near walkways or entry areas where you can enjoy their scent as they bloom.
Should You Plant Bulbs in Groups?
For a bigger visual impact, plant bulbs in groups or drifts rather than spacing them evenly throughout a large area.
A cluster of tulips or daffodils can create a much more dramatic spring display than a few scattered bulbs.
You can also layer different bulbs with different bloom times to create a longer-lasting display.
What About Boise’s Soil?
Boise-area gardeners know that soil can be one of the biggest challenges in the garden.
If your soil is heavy or doesn’t drain well, take the time to improve the planting area before putting bulbs in the ground. Bulbs don’t like sitting in soggy soil, especially during winter.
Good drainage is important for helping bulbs avoid rot and encouraging healthy root development.
What Happens After You Plant?
Once your bulbs are planted, there’s not much to do over winter.
Water them after planting if the soil is dry, then let nature take over. Depending on the weather and the type of bulb, you may start seeing those first shoots emerge as winter gives way to spring.
Don’t Wait Too Long to Plant
If you’ve been thinking about adding spring color to your garden, fall is your opportunity.
Plant your tulips, daffodils, crocuses and other spring-flowering bulbs while the soil is still workable, and you’ll be setting the stage now for a beautiful garden next spring.
Stop by FarWest Garden Center in Boise to explore our selection of spring-flowering bulbs and get advice from our plant experts on what will work best in your garden.