Cedarglade St. John's wort 'Sunburst' (Hypericum frondosum 'Sunburst')

Cedarglade St. John's wort 'Sunburst'

This perennial cultivar of St. John’s wort is known for its blue-green leaves and yellow flowers. The flowers have a unique appearance with a poofy ball-like center that is surrounded by buttercup-shaped petals. Cedarglade St. John's wort 'Sunburst' is often used as a shrub or hedge and can serve as an ornamental plant in garden beds.

Scientific classification

Nances, spurges, willows and allies

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Perennial

Lifespan

Shrub

Plant Type

Summer

Bloom Time

90 cm

Plant Height

Yellow

Flower Color

Semi-evergreen

Leaf type

5 - 35 ℃

Ideal Temperature

Care Guide for Cedarglade St. John's wort 'Sunburst'

Twice per week

Water

Full sun

Sunlight

5 - 35 ℃

Ideal Temperature

Garden Soil

Soil Type

Water: Adapted to dry spells, cedarglade St. John's wort 'Sunburst' thrives with moderate moisture, being relatively drought-tolerant. Water cedarglade St. John's wort 'Sunburst' twice a week, keeping the soil consistently moist but not waterlogged. When grown outdoors, mulching helps retain soil moisture during its active growing season.

Fertilize: Fertilize cedarglade St. John's wort 'Sunburst' in spring with balanced nutrition, prioritizing high-nitrogen options early on. Quarterly applications suffice; monitor plant response to avoid over-fertilization. Reduce feeding in fall for dormancy preparation, and handle fertilizers carefully to ensure optimal growth and health of cedarglade St. John's wort 'Sunburst'.

Pruning: Cedarglade St. John's wort 'Sunburst' thrives with early spring pruning to promote health and flowering. Remove dead branches, shape for aesthetics, and thin crowded areas for air circulation to prevent disease. Regular maintenance encourages robust growth and abundant blooms, as recommended by horticultural experts.

Propagation: Cedarglade St. John's wort 'Sunburst' is propagated from cuttings of 4-6 inches in healthy, non-flowering shoots. Dip in rooting hormone and plant in moist, well-drained medium. Cover with plastic for humidity and place in indirect light. Once rooted, transplant to a larger pot or garden for vibrant blooms.

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