Bring crisp texture and vivid seasonal color to your landscape with Hypericum kalmianum 'Cobalt-N-Gold™' (Kalm's St. John's Wort 'Cobalt-N-Gold™', Saint). This compact, mounded St. John's wort stands out for its fine, blue-silver to blue-green foliage and a heavy flush of bright golden yellow, cup-shaped flowers packed with showy stamens. Blooms typically appear from late spring into early summer, creating a glowing blanket of color that draws pollinators, including butterflies.

At maturity you can expect a tidy shrub about 24-36 inches tall with a broader, ground-hugging spread (often 48-60 inches wide), making it an excellent choice for edging, low hedges, and mass plantings. It also works well on banks and slopes where you want a tough, easy-care plant that still looks refined.

Give your plant full sun for the best flowering and densest habit, though it will also perform in part shade. Plant in average, well-drained soil and water regularly during establishment. Once rooted in, it tolerates periods of drought and is noted for handling a range of soil types, including lean or rocky sites, as well as some salt exposure.

Enjoy multi-season interest as foliage shifts to warm yellow-orange-red tones in fall, revealing attractive, exfoliating bark as stems mature. Prune lightly after flowering to shape if needed, or thin in early spring to encourage strong new growth. Hardy in USDA Zones 4-7.

Specifications

• Cold hardiness zone: 4-7 (-30 degrees F) - Contact your local extension to confirm hardiness if you are in a fringe zone (we cannot guarantee hardiness in fringe zones)
• Light: Full sun   Part sun
• Growth rate: Moderate
• Mature height: 24-36"
• Spread: 48-60"
• Tolerant of: Deer, Drought, Salt
• Attracts: Butterflies
• Good for borders & edging: Yes
• Native to the U.S.: Yes
• Good for slopes: Yes

Shipping

FREE SHIPPING - Classy Groundcovers offers free shipping, and your plants never spend more than three days in transit.

Precise delivery - another benefit from shopping with us is that you know hpw to control exactly when your order will be shipped.

Shipping information that applies to all plants:
- When We Ship
- You May Specify Your Shipping Date
- Lookup Shipping Date and Tracking Information
- Special Delivery Instructions
- Changing Your Shipping Date
- Accepting Delivery
- Unpacking Your Order
- Returns

Care