Montgomery False Spirea, Japanese Astilbe

Montgomery False Spirea, Japanese Astilbe

Astilbe japonica 'Montgomery'

This upright spirea bears red flowers in summer: a low-maintenance flowering shrub suited to mixed borders, foundation plantings, and mass plantings.

  • Red flowers are produced in summer in dense clusters above the foliage.
  • Attractive foliage provides season-long interest between bloom flushes.
  • Upright habit, reaching 70 cm at maturity; shear lightly after first bloom to encourage a second flush of flowers.
  • Best in partial shade to full shade with moist, well-drained soil.
Size
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Plant Characteristics

Sunlight
Partial shade, Shade
Soil Moisture
Well-drained, Moist, Average
Hardiness Zone
3 – 3
Mature Height (meters)
0.6 – 0.7
Mature Spread (meters)
0.5 – 0.6
Growth Rate
Medium
Flower Colour
Red
Foliage Colour
Green
Bloom Time
Summer
Habit
Upright
Deer Resistant
✓
Rabbit Resistant
✓
Pollinator Friendly
✓
Fragrant
✓
Landscape Uses
Border, Rock garden
Growing & Maintenance Tips
Grows best in light to moderate shade, with average to moist soils. Astilbe may burn if planted in full sun. Deep shade tolerant, but will not flower as prolifically. Water plants during the summer especially if there is less than average rainfall. Extended drought periods will lead to browning of the foliage and may result in foliage drop. After flowers finish, prune off spent blooms and lightly shape the foliage to encourage new growth.
Notes
Also referred to as Astilbe, False Goat's Beard.

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