A Blue-Foliage Spirea Built for Minnesota Borders

Double Play Blue Kazoo Spirea (Spiraea media 'Blue Kazoo') brings rare blue-green foliage and burgundy fall color to a tough zone 3 spirea. Whether you are filling a Minneapolis perennial border, anchoring an Eden Prairie foundation bed, or building a pollinator garden in St. Paul — Blue Kazoo gets the job done.

Double Play Blue Kazoo Spirea Plant Details

Double Play Blue Kazoo Spirea Uses in Minnesota Landscapes

Sunny perennial borders

Spireas anchor mixed borders with their dependable bloom and tidy mounding habit. Pair with native Black-eyed Susan, Coneflower, or Karl Foerster Feather Reed Grass for a low-maintenance Twin Cities border that handles clay soil and deer pressure.

Foundation plantings

Compact spireas thrive in foundation beds where they get full sun reflected off the house. Their deep roots tolerate the dry "rain shadow" zone under roof eaves better than most shrubs.

Pollinator plantings

Bees and butterflies flock to spirea blooms in early-to-midsummer. A small spirea grouping is a low-effort way to add habitat value for the Lawns to Legumes program.

Best Time to Plant Double Play Blue Kazoo Spirea in Minnesota

Fall (late August–early October) is the ideal planting window. Soil is still warm for root development, cool air reduces transplant stress, and the plant gets 6–8 weeks to establish roots before ground freeze (typically mid-November in the Twin Cities).

Spring (late April–May) is the second-best window — the plant gets the full growing season to establish before its first winter.

Avoid summer planting (June–August) when possible. Never plant after mid-October or before late April — frozen ground or frost-heaving kills new roots.

How to Plant Double Play Blue Kazoo Spirea

1. Dig wide, not deep. 2–3× the root ball width, same depth as the container. Heavy clay benefits from even wider digging.
2. Check drainage. Fill the hole with water — if it doesn't drain in 30 minutes, mound-plant or break through any clay hardpan to improve drainage.
3. Backfill with native soil + 20–30% compost. Minnesota clay-loam benefits from organic amendment but don't create a "container" of pure compost.
4. Spacing. Refer to the mature width above and space accordingly. Closer for hedging, wider for individual specimen plants.
5. Water basin. Build a 3–4 inch ring around the planting to direct water to the roots. Flatten or remove before winter to avoid ice damage.
6. Mulch. 2–3 inches of shredded bark or wood chip mulch, kept 2 inches away from the trunk. Do NOT use gravel mulch in Minnesota — it doesn't insulate.

Watering Double Play Blue Kazoo Spirea in Minnesota

First Year Watering Schedule

• Weeks 1–2: Every 1–2 days, deep and slow (15–25 minutes per plant)
• Month 1–2: Every 3–4 days
• Month 3–6: Every 5–7 days during active growth; less if rainfall is adequate (Minnesota averages ~3 inches/month June–August)
• Stop watering 2–3 weeks before ground freeze (typically late October in the Twin Cities metro) to avoid pushing late-season growth that gets killed by winter

After Year One

Established plants only need supplemental water during droughts (2+ weeks with no rain and temps above 80°F). Water deeply and infrequently — every 7–14 days during dry spells, soaking to 6–8 inches depth. Let natural rainfall do most of the work.

Pruning Note

Prune in early spring before new growth emerges. Cut back by ⅓ for shape and bloom vigor.

What is the difference between Double Play Blue Kazoo Spirea and similar shrubs?

Distinctive blue-green foliage that turns burgundy in fall. This makes it a strong choice when you want blue-foliage, fall-color, spring-bloom in a Minnesota-tested plant.

Will Double Play Blue Kazoo Spirea survive a Minnesota winter?

Yes — 3-8 (Twin Cities is zone 4b–5a). Reliable to -40°F. Double Play Blue Kazoo Spirea is among the most reliable spireas for Twin Cities zone 4b–5a yards. First-year plants benefit from a deep mulch ring and adequate fall watering before ground freeze.

Is Double Play Blue Kazoo Spirea deer-resistant?

Rarely browsed — one of the most deer-proof flowering shrubs available In high-pressure areas like Minnetonka, Wayzata, Eden Prairie, or Chanhassen, plan accordingly — deer fencing or repellent for the first year is a worthwhile insurance policy.

Does Double Play Blue Kazoo Spirea tolerate Minnesota clay soil?

Tolerates Minnesota clay-loam. Adapts to most well-drained soils. At planting, dig wide (2–3× the root ball width) and amend with 20–30% compost. Avoid creating a sunken "container" of pure compost in the clay — the plant should transition gradually to native soil.

When is the best time to plant Double Play Blue Kazoo Spirea in Minnesota?

Fall (late August through early October) is the ideal planting window — soil is still warm for root development, cool air reduces transplant stress, and plants get 6–8 weeks to establish before ground freeze. Spring (late April through May) is the second-best window.

When does Double Play Blue Kazoo Spirea bloom?

White lacecap clusters in late spring

You May Also Like

• Shop all Three Timbers Minnesota shrubs — full catalog of zone 4-hardy shrubs for Twin Cities yards
• Deer-Resistant Plants — for high-pressure suburbs like Minnetonka, Wayzata, and Eden Prairie
• Winter Interest Plants — plants that look great through Minnesota's five-month winter
• Find Your Perfect Plant — answer 5 questions and we'll recommend a plant for your yard

How Many Double Play Blue Kazoo Spirea Do I Need?

For a low hedge or border edging, space Blue Kazoo about 2.5 feet apart — at 2–3 feet of spread, the mounds knit into a continuous blue-green band:

As an accent, plant in groups of 3 spaced 2.5 feet apart where the blue foliage can contrast with green or gold neighbors.

Double Play Blue Kazoo Spirea Season-by-Season in Minnesota

• Spring: A colorful new-growth flush settles into rare blue-green foliage, topped in late spring by white lacecap clusters.
• Summer: Bees and butterflies work the blooms into early-to-midsummer while the cool blue foliage holds steady through heat.
• Fall: The headline turn — blue-green leaves ignite to rich burgundy before dropping.
• Winter: A tidy, fine-twigged low mound that disappears under snow; hardy to -40°F, zero protection needed.

At a Glance

✔ Pollinator-Friendly   ✔ Deer-Resistant   ✔ Drought-Tolerant

Plant It With

• Karl Foerster Feather Reed Grass — the body's own pick: upright golden plumes behind the blue mound.
• Glow Girl Spirea — gold foliage for a striking blue-gold spirea pairing.
• Dakota Sunspot Potentilla — golden flowers from early summer to frost after the lacecaps finish.
• Blue Star Juniper — a steel-blue evergreen that echoes the foliage color year-round.

Is Double Play Blue Kazoo Spirea Right for Your Yard?

A fit for sunny borders, foundation beds, and pollinator plantings in clay or average soil where deer pressure is high — it's one of the most deer-proof flowering shrubs you can plant. Not a fit for shady beds: without 6+ hours of sun the blue foliage dulls, bloom thins, and the burgundy fall show fades.