Alphabetical Plant Listing

Forsythia 'Happy Centennial'


A great harbinger of spring, Forsythia 'Happy Centennial' is a compact, spreading, deciduous shrub with a profusion of bright-yellow, four-petaled flowers which appear before the leaves in early to mid-spring. The foliage of leathery, ovate, dark green leaves remains attractive throughout the growing season. Developed in Canada at the Ottawa Experiment Station, this Forsythia cultivar is recognized for its extreme flower bud hardiness (to approximately -30°F or -34°C). It will bloom heavily after even severe winters when many other Forsythia cultivars would not. Its low and horizontal branching makes it a very graceful shrub. Ideal for small gardens.

  • Grows up to 24-30 in. tall (60-75 cm) and 3-5 ft. wide (90-150 cm).
  • A full sun or part shade lover, this plant is best grown in medium moisture, well-drained soils. Best flower production is obtained in full sun. Tolerates average to poor garden soils. Some drought tolerance.
  • Perfect as a specimen plant, for foundations or hedges, in mixed borders, on banks or slopes. Great for city gardens, or cottage gardens.
  • Low maintenance, this plant is deer resistant and fairly trouble-free. Some susceptibility to leaf spot and crown gall.
  • Prune immediately after spring flowering.
  • Propagate by semi-hardwood cuttings
  • Native to Europe and Eastern Asia.

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Requirements

Hardiness 5 – 9
Heat Zones 5 – 9
Climate Zones 1A, 2A, 2B, 3A, 3B, 4, 5, 6, 7, 8, 9, 10, 11, 14, 15, 16, 18, 19, A2, A3
Plant Type Shrubs
Plant Family Forsythia
Exposure Full Sun, Partial Sun
Season of Interest Spring (Early,Mid)
Height 2' – 3' (60cm – 90cm)
Spread 3' – 5' (90cm – 150cm)
Spacing 60" (150cm)
Water Needs Average
Maintenance Low
Soil Type Chalk, Clay, Loam, Sand
Soil pH Acid, Alkaline, Neutral
Soil Drainage Moist but Well-Drained, Well-Drained
Characteristics Cut Flowers, Showy
Tolerance Clay Soil, Deer, Drought
Garden Uses Banks and Slopes, Beds and Borders, Hedges and Screens, Small Gardens
Garden Styles City and Courtyard, Informal and Cottage, Traditional Garden

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vbaleha / 123RF Stock Photo

While every effort has been made to describe these plants accurately, please keep in mind that height, bloom time, and color may differ in various climates. The description of these plants has been written based on numerous outside resources.


Requirements

Hardiness 5 – 9
Heat Zones 5 – 9
Climate Zones 1A, 2A, 2B, 3A, 3B, 4, 5, 6, 7, 8, 9, 10, 11, 14, 15, 16, 18, 19, A2, A3
Plant Type Shrubs
Plant Family Forsythia
Exposure Full Sun, Partial Sun
Season of Interest Spring (Early,Mid)
Height 2' – 3' (60cm – 90cm)
Spread 3' – 5' (90cm – 150cm)
Spacing 60" (150cm)
Water Needs Average
Maintenance Low
Soil Type Chalk, Clay, Loam, Sand
Soil pH Acid, Alkaline, Neutral
Soil Drainage Moist but Well-Drained, Well-Drained
Characteristics Cut Flowers, Showy
Tolerance Clay Soil, Deer, Drought
Garden Uses Banks and Slopes, Beds and Borders, Hedges and Screens, Small Gardens
Garden Styles City and Courtyard, Informal and Cottage, Traditional Garden

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