How to Grow Hypericum 'Summergold'
Hypericum 'Summergold'
Hypericum × inodorum 'Summergold'
shrubHypericum 'Summergold' is a compact ornamental shrub prized for its bright golden-yellow flowers and decorative berry-like fruits that persist through seasons. This hybrid St. John's Wort produces abundant blooms from summer through fall and develops striking red-orange seed pods that add winter interest.
When should you plant Hypericum 'Summergold' in your zone?
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Example Hypericum 'Summergold' timeline · Pittsburgh, PA (Zone 6b)
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Plant Hypericum 'Summergold'
Around Apr 17Near Pittsburgh's average last spring frost.
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Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
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Harvest Hypericum 'Summergold'
Around Oct 14≈ 180 days after planting
Sample dates for Pittsburgh, PA. Sign up to get exact Hypericum 'Summergold' dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 6-9, with some success in zone 5b with winter protection
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Establishment
4-8 weeksYoung plant developing root system and initial branching; sparse foliage
Water consistently, mulch lightly to retain moisture. Protect from harsh winds. Stake if necessary.
Vegetative Growth
8-12 weeksRapid shoot and leaf development; plant fills out with dense branching and dark green foliage
Prune lightly to encourage bushy form. Continue regular watering. Apply balanced fertilizer monthly during growing season.
Flowering
June-September (14-16 weeks)Abundant golden-yellow star-shaped flowers appear at branch tips; flowers 0.5-0.75 inches across
Deadhead spent flowers to encourage continuous blooming. Reduce nitrogen fertilizer to promote flowering over foliage.
Fruiting & Pod Development
September-December (12+ weeks)Flowers transition to red-orange capsule-like seed pods; pods develop deeper color and persist on plant
Stop deadheading to allow fruit development. Reduce fertilizer. These ornamental fruits are highly decorative.
Dormancy & Winter Interest
December-March (12 weeks)Plant slows growth; foliage may decline but colorful seed pods remain attractive; stems persist
Minimal watering. Do not prune in fall; defer major pruning to early spring. Provide winter protection in zone 5.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Spray with water to dislodge; use insecticidal soap or neem oil if severe. Maintain humidity around plant.
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Spray with strong water stream; use insecticidal soap or neem oil. Encourage natural predators like ladybugs.
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Hand-pick in early morning; use pheromone traps at distance from plant. Apply neem oil for severe infestations.
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Use yellow sticky traps; spray with insecticidal soap or horticultural oil. Increase air circulation.
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Improve air circulation by pruning. Spray with sulfur dust or potassium bicarbonate. Avoid overhead watering.
Uses
Cut flowers & dried arrangements
CraftGolden-yellow blooms and vibrant red-orange seed pods are excellent for fresh and dried flower arrangements, adding cheerful color and long-lasting interest to floral designs. [source]
Ornamental landscape shrub
HouseholdValued as a decorative shrub for borders, containers, and mixed plantings, providing extended seasonal interest through summer blooms and fall/winter fruit display. [source]
Pollinator support
WildlifeAbundant flowers attract bees, butterflies, and other pollinators throughout the summer and early fall months, supporting beneficial insect populations in gardens. [source]
St. John's Wort traditional use
MedicinalHypericum species have a long history in traditional herbal medicine, though the ornamental 'Summergold' cultivar is not typically used medicinally compared to H. perforatum. [source]
This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.
Harvest Tips
This is an ornamental shrub; no edible harvest. Cut stems with colorful seed pods for dried floral arrangements (harvest September-November). Cut flowers can be used fresh or dried for arrangements (harvest when flowers are fully open).
Fun Facts
- 🌱 The genus name 'Hypericum' comes from Greek words meaning 'over' and 'icon,' as these plants were traditionally hung above religious icons for protection.
- 🌱 'Summergold' produces masses of flowers—sometimes hundreds of blooms at peak season—making it an exceptional long-season bloomer compared to many ornamental shrubs.
- 🌱 The colorful seed capsules are technically not berries but decorative fruit structures that often persist on the plant well into winter, providing visual interest long after other plants have faded.
Gardening Terms
New to gardening? Learn about terms used in this guide:
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