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Hemerocallis 'Siloam Double Classic'
Siloam Double Classic
Garden hybrid; registered by Pauline Henry in 1985
Overview
Hemerocallis 'Siloam Double Classic' is a compact, clumping, deciduous perennial reaching 16-20 inches (40-50 cm) tall with a spread of 18-24 inches (45-60 cm). The cultivar produces fully double flowers 5 inches (13 cm) across in soft peach-pink to salmon-pink; extra petaloid stamens replace the central reproductive parts and create a layered, peony-like form with ruffled margins. Each flower lasts one day, and bloom extends from June through July for 4-5 weeks—a shorter season than single-flowered daylily cultivars. The arching, strap-shaped, medium green foliage reaches 12-18 inches (30-45 cm) before scapes emerge. Well-branched scapes carry 15-20 buds per stem. In cool, cloudy weather the double expression can be incomplete and some flowers open partially single. Registered by Pauline Henry in 1985. Growth rate is moderate and clumps reach mature size in 1-2 years. Hardy to USDA zone 3. All plant parts are toxic if ingested by cats and dogs.
Native Range
Hemerocallis 'Siloam Double Classic' is a garden hybrid registered by Pauline Henry in 1985. The genus Hemerocallis is native to eastern Asia (China, Japan, Korea, and eastern Russia), where wild species grow in meadows, forest edges, and mountain slopes.Suggested Uses
Used in front-of-border positions, edging, and container plantings of at least 2 gallons (7.5 L), at 18-24 inch (45-60 cm) spacing. The 16-20 inch (40-50 cm) mature height suits small spaces where taller daylilies would dominate. The double peony-like flower form contrasts with single-flowered daylily cultivars in a mixed planting. The 4-5 week bloom window and incomplete double expression in cool weather are trade-offs against single-flowered cultivars with longer and more reliable bloom.How to Identify
Appearance
Size & Dimensions
Height1'4" - 1'8"
Width/Spread1'6" - 2'
Reaches mature size in approximately 2 years
Bloom Information
Fully double flowers 5 inches (13 cm) across, soft peach-pink to salmon-pink with layered petaloid stamens forming a peony-like shape, from June through July. Each flower lasts one day on well-branched scapes carrying 15-20 buds. Bloom duration is 4-5 weeks, which is shorter than single-flowered daylily cultivars.Detailed Descriptions
Flower Description
Soft peach-pink to salmon-pink; fully double peony-like form with layered petaloid stamens; 5 inches (13 cm) acrossFoliage Description
Medium green, arching, strap-shaped, 12-18 inches (30-45 cm) longGrowing Conditions
Sun Requirements
Requires 6-10 hours of direct sunlight daily
• Full Sun: 6+ hours of direct sunlight
• Partial Shade: 3-6 hours of direct sunlight
• Full Shade: Less than 3 hours of direct sunlight
Care & Maintenance
Care Guide
Grows in full sun and average to moist, well-drained soil at pH 6.0-7.0. Hardy to USDA zone 3. The double flower form can open incompletely in cool, cloudy weather, producing partially single flowers in poor summer conditions. Clumps benefit from division every 3-5 years to maintain bloom. The compact 16-20 inch (40-50 cm) height suits front-of-border and container positions. Water weekly during extended dry periods; established plants tolerate short drought.Pruning
Cut spent flower scapes at the base after all buds have opened. Remove frost-killed foliage in late fall or leave standing until early spring. Divide crowded clumps every 3-5 years in early spring or after bloom.Pruning Schedule
J
F
M
A
M
J
J
A
S
O
N
D
fallearly spring
Maintenance Level
lowContainer Growing
✓ Suitable for container growing
Minimum container size: 2 gallons