Meet Mystery Yellow, a sunny formal decorative dahlia that brings light and brightness to every garden — grown here at Brooks & Bloom Flowers in Raynham, MA.

Each 5–6" bloom features layers of golden-yellow petals that radiate cheerfulness. With its tall 60" stems and abundant flowering, Mystery Yellow is a reliable and productive variety for both cutting and display.

Perfect for adding contrast to mixed bouquets or brightening up late-summer arrangements, this dahlia’s vibrant hue is a guaranteed mood booster.

Bring the beauty of our dahlias to your garden. Our tubers are carefully harvested, cured, and stored to ensure strong, healthy plants for your growing season.

Ideal for cut flower growers, home gardeners, and anyone who loves bright, happy dahlias.

Mystery Yellow Dahlia Tuber

$15.00

Variety: Mystery Yellow

Form: Formal Decorative

Color: Golden yellow

Plant Height: 60" inches ( 5 ft)

Bloom Size: 5-6"

Use: Excellent for cheerful bouquets and mixed arrangements

Notes: Reliable bloomer; adds warmth and vibrancy to any garden or design
Plant after the last frost, once soil temperatures reach 60°F.

Space tubers 12–18 inches apart in well-drained soil with full sun.

Pinch back early growth to encourage branching and more blooms.

Water deeply 2–3 times per week; avoid overwatering until shoots appear.

Cut regularly to promote continuous flowering.

Blooms typically appear mid-to-late summer and continue until frost.
Tubers ship in Spring 2026, timed for your planting zone.

Shipping Rates:

1–5 tubers: $12

6–10 tubers: $16

10+ tubers: $20

Local pickup available in Raynham, MA (choose pickup at checkout).

Mystery Yellow Dahlia Tuber

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