A Giant Astilbe with Chocolate Foliage and Cherry-Red Plumes

Mighty Chocolate Cherry Astilbe (Astilbe 'Mighty Chocolate Cherry') is a true showstopper, one of the largest astilbes available, sending towering cherry-red plumes up to three or four feet over dramatic chocolate-bronze foliage in mid to late summer. It commands attention at the back of a shaded, moist border and brings bold height and color where most shade perennials stay low. Deer-resistant and pollinator-friendly, it's a statement plant for Minnetonka, Lakeville, and Blaine shade gardens.

Landscape Uses

Use Mighty Chocolate Cherry at the back of shaded borders, in woodland gardens, and along rain gardens or pond edges where its size and dark foliage make a bold backdrop. Pair with chartreuse hostas and ferns for striking contrast; plumes are excellent for cutting.

Best Time to Plant

Plant in spring or early fall, when cool weather and steady moisture help roots establish. Avoid midsummer heat.

How to Plant

Dig a hole twice as wide as the root ball and just as deep. Set the crown level with the soil, backfill with compost-enriched soil, water thoroughly, and mulch 2–3 inches deep to conserve moisture.

Watering

First Year: Keep the soil consistently moist, watering 2–3 times per week. This large astilbe especially needs steady moisture.
After Year One: Continue regular watering, especially in heat.
Drip Irrigation: A soaker hose or drip line provides the steady moisture this plant demands.

Frequently Asked Questions

How big does it really get?
It's one of the tallest astilbes, reaching 3–4 feet in bloom, so give it room at the back of a bed.

Will it grow in shade?
Yes, part to full shade is ideal; full sun works only with reliably moist soil.

Is it hardy in Minnesota?
Yes, hardy to Zone 4 and reliable statewide.

Is it deer resistant?
Yes, deer and rabbits generally avoid astilbe.

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Pair Mighty Chocolate Cherry with shorter astilbes, hostas, and ferns for a layered shade border with strong vertical drama.

How Many Mighty Chocolate Cherry Astilbe Do I Need?

This is a large astilbe — space plants about 30 in. apart so the clumps have room. At 30 in. spacing:

For drama, plant a single specimen as a focal point or a bold group of 3 at the back of a shade border.

Mighty Chocolate Cherry Astilbe Season-by-Season in Minnesota

• Spring: Dramatic chocolate-bronze foliage unfurls, bringing dark color to the shade bed early.
• Summer: Towering cherry-red plumes rise 3–4 ft above the foliage in mid to late summer, drawing pollinators.
• Fall: Spent plumes dry to a warm bronze and hold their structure as the foliage fades.
• Winter: Dies back to the ground; mulch conserves moisture and protects the crown for a strong return.

At a Glance

✔ Pollinator-Friendly   ✔ Deer-Resistant   ✔ Shade-Tolerant   ✔ Rain-Garden / Wet-Soil

Plant It With

• Maggie Daley Astilbe — vivid purple-pink plumes to layer a shorter astilbe in front.
• Deutschland Astilbe — crisp white plumes for contrast against the dark foliage.
• Japanese Painted Fern — silvery fronds that brighten the chocolate leaves.
• Lady Fern — a Minnesota-native fern for an airy, moist-woodland backdrop.

Is Mighty Chocolate Cherry Astilbe Right for Your Yard?

It excels in part to full shade with rich, consistently moist soil — ideal at the back of a shaded border or along a rain garden or pond edge, and deer leave it alone. Not a fit for hot, dry sun or sandy soil that dries out; without steady moisture the foliage crisps and the plumes fizzle.