Sell Flowers for your school or organization! Learn more →
Count the Buds, Not the Blooms: How to Pick the Best Dahlia at the Garden CenterBuying Tips

Count the Buds, Not the Blooms: How to Pick the Best Dahlia at the Garden Center

Mario Mirelez
Mario Mirelez

Sales Director & Design Expert · May 11, 2026

It's tempting. You walk through the garden center, and one dahlia is wide open — big, bold, every petal in place. You grab it.

Here's the problem: that flower is already at the end of its run.

A Dahlia Bloom Only Lasts a Few Days

Once a dahlia flower fully opens, it has a short window before it starts to fade. Depending on the variety and the weather, that's often just two to four days.

If the bloom looks perfect at the register on Saturday, it may be spent by the following weekend. You didn't do anything wrong — you just bought it at the wrong moment in its cycle.

Buy the One Just Starting to Show Color

The better pick is the plant where the buds are just cracking open and showing their first hint of color.

Why?

  • You get to enjoy the full bud-to-bloom cycle at home
  • The plant has invested its energy in new flowers, not finishing old ones
  • The colors will arrive over days and weeks, not all at once

It feels less impressive in the moment. It pays off all summer.

The Rule of Thumb: Count the Buds, Not the Blooms

This is the easiest way to compare two plants side by side.

Pick up each plant and look past the open flowers. Count:

  • Tight green buds — the future flowers
  • Cracking buds with color showing — flowers opening this week
  • Fully open flowers — flowers that will be spent in days

More buds means more flower weeks ahead. A plant with two open blooms and twelve tight buds will outperform a plant with six open blooms and three buds — every time.

What “Healthy Bud Load” Looks Like

You're looking for:

  • Buds at different stages — tight, swelling, and just-cracking
  • Buds distributed around the plant, not all on one side
  • Firm, green foliage — not yellowing or stretched
  • A compact, well-branched plant rather than one tall stem topped with a flower

A well-budded plant tells you it has been grown patiently and isn't running on fumes.

Then Feed It

Buying the right plant is half the job. The other half is making sure every bud opens to the size it's capable of.

Dahlias are heavy feeders. To get the biggest, fullest blooms:

  • Fertilize regularly — a balanced bloom-booster every 1–2 weeks, or a slow-release feed mixed in at planting
  • Water consistently — uneven moisture can shrink bud size and stall opening
  • Deadhead spent flowers so the plant puts energy into the next round of buds

A bud that opens on a hungry plant is smaller than the same bud opening on a fed plant. Same genetics — very different result.

One More Thing About Heat

Dahlias are heat plants. They want warm days and warm nights to push buds open at full size. If you buy early and the weather is still cool, expect the first round of blooms to be a little smaller than peak summer flowers from the same plant. That's normal — not a problem with the plant.

The Real Takeaway

Next time you're standing in front of a dahlia rack:

  • Don't grab the showiest open flower
  • Find the plant with the most buds at different stages
  • Pick the one just starting to show its first color
  • Feed it well once you get it home

You'll trade a few days of instant gratification for weeks of fresh, full-size blooms.

Hoosier Tip

If two plants are otherwise equal, the one with more cracking buds (showing color but not fully open) is the strongest buy — you'll see the first big show within a week, and the rest of the buds will follow behind it.

Reference: Purdue University Extension / University floriculture research — Indiana gardening resources

More Growing Tips

← Browse all growing tips

Grow Like a Hoosier™

Get weekly growing tips, Indiana-specific advice, and new plant spotlights — straight from the Schlegel greenhouse.