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How to Grow Calliope Deep Red

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Calliope Deep Red

Heuchera × brizoides 'Calliope Deep Red'

flower

Calliope Deep Red is a compact coral bells cultivar prized for its deep crimson-red foliage and delicate bell-shaped flowers. This evergreen perennial produces airy spikes of coral-red flowers above richly colored maroon leaves, making it an excellent choice for borders, containers, and shade gardens. It combines striking foliage color with long-lasting blooms across multiple seasons.

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Example Calliope Deep Red timeline · Pittsburgh, PA (Zone 6b)

  1. Plant Calliope Deep Red

    Around Apr 17

    Near Pittsburgh's average last spring frost.

  2. Tend & protect

    Late spring–summer

    Watering, feeding, and pest-watch reminders.

  3. First Calliope Deep Red blooms

    Around May 17

    ≈ 30 days after planting

Sample dates for Pittsburgh, PA. Sign up to get exact Calliope Deep Red dates for your own zip code.

Growing Conditions

☀️
Sun: Partial shade to full sun; in hotter climates (zone 8+), afternoon shade is beneficial. Tolerates 3-6 hours of sunlight daily.
💧
Water: Keep soil consistently moist but not waterlogged. Water deeply once or twice weekly during growing season. Reduce watering in winter. Heuchera is moderately drought-tolerant once established.
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Spacing: 12 inches
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Days to maturity: 30-40 days to flowering from transplants
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Planting depth: Plant at soil surface level; do not bury the crown

Soil

Type: Well-draining loamy soil with organic matter
pH: 6.0-7.0
Amendments:
Compost Peat moss Perlite for drainage Leaf mold

Growing Zones

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Thrives in zones 4-9, with best performance in zones 5-8

4a 4b 5a 5b 6a 6b 7a 7b 8a 8b 9a

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Growth Stages

1

Establishment

2-4 weeks

Young plant developing root system with small rosette of deep red basal leaves

Keep soil moist, avoid overhead watering, and protect from strong winds. Do not bury the crown.

2

Vegetative Growth

4-8 weeks

Foliage expands with deepening crimson-red coloration; rosette becomes fuller and more robust

Maintain consistent moisture and partial shade. Apply light fertilizer (balanced, diluted) every 4-6 weeks.

3

Flowering

6-10 weeks (spring through early summer)

Delicate spires of coral-red bell-shaped flowers emerge above foliage, creating an airy, elegant display

Continue regular watering and deadhead spent flowers to encourage additional blooms. Support tall flower spikes if needed in windy locations.

4

Summer Maintenance

8-12 weeks

Foliage may lighten slightly in intense heat; flowers may slow but remain present

Increase shade and mulching in hot climates. Water more frequently in heat. Remove any damaged or diseased leaves.

5

Dormancy/Winter

3-4 months

Plant enters semi-dormancy; foliage persists but growth slows; foliage color may intensify

Reduce watering. Do not cut back foliage; leave it for winter protection. Remove any dead leaves in spring.

Companion Planting

Plan your garden →

Plant with:

Hellebores Hosta Ajuga Carex Ferns Astilbe Heliantus Sedum Heuchera (other varieties)

Avoid planting near:

Plants requiring full sun only Highly competitive aggressive groundcovers Plants needing dry soil (e.g., Sempervivum in wet climates)

Common Pests

  • Remove debris; use neem oil or insecticidal soap on foliage; apply diatomaceous earth around base

  • and

    Remove moist hiding spots; use copper barriers, beer traps, or hand-pick; apply slug pellets if needed

  • Remove and destroy infected leaves; improve air circulation; avoid overhead watering

  • Spray with insecticidal soap or neem oil; isolate infested plants

Uses

🌿

Landscape Accent & Border Plant

Ornamental

The striking deep red foliage provides year-round color in mixed borders, shade gardens, and containers. Its compact mounding habit makes it perfect for edging and fronting taller plants. [source]

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Cut Flowers & Floral Arrangements

Household

The delicate coral-red flower spikes are long-lasting in water and add an airy, elegant element to fresh arrangements and dried bouquets. [source]

🦋

Pollinator Support

Wildlife

Heuchera flowers attract hummingbirds and bees, serving as an important nectar source in shade gardens where flowering plants are limited. [source]

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Garden Design & Container Planting

Craft

Its vibrant foliage color and compact size make it ideal for container gardens, mixed planters, and textural contrast in mixed borders. [source]

Harvest Tips

Heuchera is ornamental; no harvest needed. Remove dead flowers and leaves throughout the season. Cut flower spikes for arrangements when fully open.

Fun Facts

  • 🌱 Calliope Deep Red is a hybrid coral bells (Heuchera × brizoides) developed for superior vigor and flower production compared to pure Heuchera species.
  • 🌱 The foliage color intensifies in cooler temperatures and with some direct sun exposure, creating deeper crimson tones in fall and winter.
  • 🌱 Heuchera flowers are primarily pollinated by hummingbirds in nature, and native plants have evolved their bell shape specifically to accommodate hummingbird beaks.

Gardening Terms

New to gardening? Learn about terms used in this guide:

Crown Cultivar Deadhead Full Sun Mulch Partial Shade Perennial
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