Hypericum calycinum (3.5-inch pot)
Common Name: St John's-wort, Aaron's beard, creeping St. John's wort
Height: 12-18 Inches
Spread: 24 Inches
Hardiness Zone: 5-9
Full Sun to Part Shade
Ground cover for medium to large areas
Not for small gardens
Blooms yellow early Summer
semi-evergreen subshrub or shrublet.
Leaves emerges chartreuse-bronzed, but quickly turns to medium green then dark green in sunny area; and lighter, yellowish green in shade. Fall color is more of a deep blue-green. Large (2 to 3 inch), rose-like bright canary yellow flowers appear singly or in groups of 2 to 3 and cover the plant in June and July and sporadically through September.
Prefers moist, well-drained, average fertile soil in partial shade; St. Johns Wort is tolerant of a wide range of well-drained soils. Evergreen in warm winter climates, may suffer some tip dieback in cold winter climates, but blooms on new growth each spring. Shear or mow plants in late winter or early spring every 2 to 3 years to induce new growth. Spreads rapidly by underground stems and can be invasive in ideal growing conditions.
Use as ground cover, rock gardens, border fronts, naturalized plantings, and excellent for embankments or hillsides. Versatile plant can be used as a flowering shrub or ground cover. Good for planting under trees where it competes well with shallow tree roots.
Not that we are making any recommendations, but historically St. Johns Wort has been used as an antiseptic and anti-depressant.
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The Hypericum Calycinum came beautifully packed, and each pot had a healthy plant with lots of roots and a larger vine than I expected. I could not be more pleased with this order, and will order from this vendor again.