|AT A GLANCE--
LIGHT/EXPOSURE: Full sun to partial shade; 6 hours of direct sun minimum
HEIGHT: Normally not more than 36 to 48 inches
SPREAD: 36 to 48 inches; similar to height
LEAVES: Lance-shaped; 1 to 2 inches long, about 1/2 inch wide; deep green
with a bluish cast
BLOOM TIME: In normal summer temperatures (those above 70 degrees!), 2 to
6 weeks; blooming starts in late June to early July
FLOWER COLOR: Bright golden yellow; flowers measure up to 1.5 inches across
BLOOM HABIT: Flowers are held at the tips of the branches either singly or in
pairs, petals are thick and reflexed (curved backward toward the
stem); genus is characterized by having flowers with a "fuzzy"
appearance, due to the huge number of stamens present (see inset in
GROWTH RATE: Moderate; 3 to 6 inches per year, on average
GROWTH HABIT: Dense, fine-textured shrub; width is normally comparable to height
Hypericum, or St. John's Wort, makes an easy addition to most gardens. Its size is
unimposing. It plays well with others, so to speak. It does well in average garden soils, and
its bloom is not quite like that of many other shrubs available out there. Some other points
-This one wakes up somewhat late in the Spring, and gets off to a slow start, but it makes up
for it as the weather warms up.
-It does best in average, well-drained soils. Excessive nutrients will lead to a fast-growing,
-It is not terribly fond of having "wet feet."
-I mentioned a few years ago that the bloom time one year was longer than normal. It seems
that it is indeed longer than I had previously thought. The parent plant of the seedlings I had
bloomed for nearly two and a half months in 2006...quite a rarity in the shrub world!
-Hypericum is commonly referred to as a "woody perennial," rather than a true shrub.
Loosely translated, overly harsh winters can cause some pretty heavy dieback of stems,
similar to Butterfly Bush. It does set wood, but be prepared to prune in the spring, to even
out the plant, should some dieback occur.
-Avoid planting in excessively windy areas...winter dieback is closely tied to planting in
-Winter mulching can help your success rate with this plant...straw or pine straw to a depth of
at least 4 inches can be added to the surrounding area as the ground begins to freeze in the
|HYPERICUM FRONDOSUM 'SUNBURST'
(St. John's Wort, 'Sunburst')