Trade name information:
Trade Name: Happy Birthday™
Cultivar name: 'Zohapbi'
Also sold as:
  • Jewel of Merk

Data specific to Clematis (Edit)
Growing Zones:USDA Zone 5
USDA Zone 5 - with winter protection only
USDA Zone 9
USDA Zone 9 - partially shaded areas only
USDA Zone 11 - partially shaded areas only
Plant Group:Florida
Typical Plant Size:Typically 8 feet
Pruning Group:Group 3 - Hard pruning recommended in early spring
Bloom Diameter:Large - between 6 to 8 inches
Bloom Color (Tepals):Other
Bar or Accent Color (if applicable):Other
Bloom Shape:Urn shape
Preferred Light:Tolerates full shade
Moisture Requirements:Average moisture requirements

General Plant Information (Edit)
Plant Habit:Fern
Life cycle:Biennial
Sun Requirements:Full Shade
Minimum cold hardiness:Zone 4a -34.4 °C (-30 °F) to -31.7 °C (-25 °F)
Maximum recommended zone:Zone 12
Leaves:Malodorous
Flowers:Showy
Flower Color:Red
Flower Time:Late summer or early fall
Fall

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