Alphabetical Plant Listing

Helianthus 'Happy Days' (Perennial Sunflower)

Perennial Sunflower 'Happy Days'


Helianthus 'Happy Days' is a dwarf Perennial Sunflower forming an upright foliage mound of dark green leaves. From midsummer to early fall, it produces large, brilliant, double flowers, up to 4 in. across (10 cm), with short golden petals surrounding a prominent, anemone-style, yellow center. Borne on purple, branched stems, the flower heads attract scores of butterflies and hummingbirds. Compact, this Perennial Sunflower is perfect for beds and borders. Excellent for cutting too!

  • Winner of the prestigious Award of Garden Merit of the Royal Horticultural Society for its noteworthy qualities
  • Grows up to 24 in. tall (60 cm) and 12-18 in. wide (30-45 cm).
  • Prefers full sun and enjoys moderately fertile, humus-rich, moist, neutral to alkaline, well-drained soils.
  • Low maintenance, this is an excellent choice for the middle of perennial borders where the dazzling flowers are welcomed in any color scheme. Perfectly suited to the cutting garden, or cottage gardens.
  • Cut the dead stems back to the ground in late fall, or leave for winter interest

Learn How To Plant, Care and Grow Gorgeous Sunflowers

Cherished for their beauty, Sunflowers (Helianthus) are striking ornamental annuals or perennial plants grown for their colorful summer and fall blooms. Fast-growing, they can reward you with glamorous blooms between 55 and 100 days after planting. Here are some basic rules that need to be followed to enjoy their splendid flowers.Read More

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Requirements

Hardiness 5 – 9
Climate Zones 1, 1A, 1B, 2, 2A, 2B, 3, 3A, 3B, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Plant Type Perennials
Plant Family Helianthus - Sunflowers
Exposure Full Sun
Season of Interest Summer (Mid,Late)
Fall
Height 1' – 2' (30cm – 60cm)
Spread 1' – 2' (30cm – 60cm)
Spacing 18" (45cm)
Water Needs Low, Average
Maintenance Low
Soil Type Chalk, Clay, Loam, Sand
Soil pH Alkaline, Neutral
Soil Drainage Moist but Well-Drained, Well-Drained
Characteristics Cut Flowers, Plant of Merit, Showy
Attracts Butterflies, Hummingbirds
Garden Uses Beds and Borders
Garden Styles Cutting Garden, Informal and Cottage, Prairie and Meadow

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Great Plant Combination Ideas with Helianthus - Sunflowers

Guides with Helianthus - Sunflowers


Walter Gardens Inc.

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
Climate Zones 1, 1A, 1B, 2, 2A, 2B, 3, 3A, 3B, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Plant Type Perennials
Plant Family Helianthus - Sunflowers
Exposure Full Sun
Season of Interest Summer (Mid,Late)
Fall
Height 1' – 2' (30cm – 60cm)
Spread 1' – 2' (30cm – 60cm)
Spacing 18" (45cm)
Water Needs Low, Average
Maintenance Low
Soil Type Chalk, Clay, Loam, Sand
Soil pH Alkaline, Neutral
Soil Drainage Moist but Well-Drained, Well-Drained
Characteristics Cut Flowers, Plant of Merit, Showy
Attracts Butterflies, Hummingbirds
Garden Uses Beds and Borders
Garden Styles Cutting Garden, Informal and Cottage, Prairie and Meadow

Great Plant Combination Ideas with Helianthus - Sunflowers

Guides with Helianthus - Sunflowers

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