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Ames St Johns Wort

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    Only 6 left in stock
    #3 Container



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Dense, Compact Evergreen

The Ames St. Johns Wort, Hypericum kalmianum 'Ames', often commonly called Kalm St. Johns Wort, is a native evergreen shrub or subshrub with upright branching. It typically grows in a dense 2'-3' tall mound.

It is a neatly rounded garden shrub with dazzling golden yellow flowers in mid-summer. 'Ames' is slightly hardier than other species and has a more uniform shape.

Flowers give way to beaked, oval, brown seed capsules that mature in fall and often persist on the shrub until spring.

'Ames' St Johns Wort is easily grown in average, medium, well-drained soils in full sun to part shade.  It prefers moist, rich, sandy loams and tolerates some drought.

Use as a low hedge, for shrub borders, rocky slopes, or a naturalized areas or pond peripheries.

This St. Johns Wort is not particular about soil pH levels and is particularly suited for urban conditions, pollution, etc.

* Yellow Flowers in Mid Summer
* Compact Native Shrub


Plant Facts

Family Hypericum kalmianum 'Ames'
Foliage Green
Mature Height 2 to 3 feet
Mature Spread 2 to 3 feet
Soil Widely Adaptable
Zones 4-7
Mature Form Mounding
Growth Rate Moderate
Sun Exposure Full Sun to Partial Shade
Flower Color Yellow
Fall Color Yellow/Bronze

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