Sunny Boulevard kalm's st. john's wort
Hypericum kalmianum 'Sunny Boulevard'
MBG Plant of Merit 2004
USDA zones4 to 8
SunHandles full sun to partial sun
WaterHandles dry to wet soil
Size2 to 3 feet tall2 to 3 feet wide
- Growth rate
- Slow
- Habit
- Dense
- Bloom season
- Summer
- Soil types
- Sand, loam, clay
- Soil pH
- Acid, alkaline, neutral
Garden uses
Attracts
Notes
'Sunny Boulevard' kalm's St. John's wort (Hypericum kalmianum 'Sunny Boulevard') is a shrub for borders, hedges, rock gardens, and foundation plantings. It is hardy to USDA zone 4, or down to -30°F (-34°C). This plant likes full or part sun and dry to wet, sandy, loamy, or clay soil. Deer rarely make it their first choice. It grows slowly into a dense mound that blooms from early to late summer. Butterflies, bees, and birds visit it.
Pairs well with Big bluestem, Ice plant, and Switchgrass.