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PlantFiles: Hypericum
Hypericum cerastoides

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Family: Clusiaceae
Genus: Hypericum (hy-PER-ee-kum) (Info)
Species: cerastoides (ker-ras-TOY-deez) (Info) (ser-as-TOI-deez) (Info)

Synonym:Hypericum rhodoppeum
Synonym:Campylopus cerastoides

Category:
Alpines and Rock Gardens
Groundcovers
Perennials

Height:
under 6 in. (15 cm)
6-12 in. (15-30 cm)

Spacing:
9-12 in. (22-30 cm)

Hardiness:
USDA Zone 8b: to -9.4 C (15 F)

Sun Exposure:
Full Sun
Sun to Partial Shade

Danger:
Unknown - Tell us

Bloom Color:
Red-Orange
Gold (Yellow-Orange)

Bloom Time:
Late Spring/Early Summer
Mid Summer
Late Summer/Early Fall

Foliage:
Evergreen
Blue-Green

Other details:
Average Water Needs; Water regularly; do not overwater
Requires consistently moist soil; do not let dry out between waterings

Soil pH requirements:
6.6 to 7.5 (neutral)

Patent Information:
Non-patented

Propagation Methods:
By dividing the rootball
From semi-hardwood cuttings
From seed; sow indoors before last frost

Seed Collecting:
Allow seedheads to dry on plants; remove and collect seeds

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to view:

By saya
Thumbnail #1 of Hypericum cerastoides by saya

By saya
Thumbnail #2 of Hypericum cerastoides by saya

Profile:

No positives
3 neutrals
No negatives

Gardeners' Notes:

RatingAuthorContent
Neutral CRice On May 9, 2010, CRice from Scotch Plains, NJ wrote:

I planted some from seed 3 years ago, germination was extremely poor and the intial seedlings were very tiny and slow-growing. However the few plants I did transfer to my garden took hold and have eventually spread to a nice patch of ground cover.

Neutral macybee On Oct 21, 2007, macybee from Deer Park, TX (Zone 9a) wrote:

Hypericum - St John's Wort
This is a large and varied genus of 400 species of annuals, perennials, shrubs and a few small trees, some evergreen but mostly deciduous, grown for their showy flowers in shades of yellow with a central mass of prominent golden stamens. They are found throughout the world in a broad range of habitats. Species range in size from diminutive perennials for the rockery to over 10' tall.
Cultivation: Mostly cool-climate plants, they prefer full sun but will tolerate some shade. Thy do best in fertile, well-drained soil, with plentiful water in late spring and summer. Remove seed capsules after flowering and prune in winter to maintain a rounded shape. Cultivars are propagated from cuttings in summer, and species from seed in fall or from cuttings in summer. Some species are susceptible to rust.
Hypericum cerastoides syn Hypericum rhodoppeum
This densely mounding perennial has oval, gray-green leaves and terminal clusters of bright yellow, cup-shaped flowers in late spring and early summer. It has an upright, slightly spreading habit and grows to 12" tall with an 18" spread. Frost hardy, it is useful in rock gardens.
Zones 6-9.

Neutral saya On Mar 15, 2005, saya from Heerlen
Netherlands (Zone 8b) wrote:

Plants are raised from seed and are planted out summer 2004. Survided our wet winter with occasionly temps down to -11C. Stayed wintergreen.

Territory EURASIA: mediterranean
grassland and thickets.

Regional...

This plant has been said to grow in the following regions:

Scotch Plains, New Jersey
Dallas, Texas



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