Light Needs
Mature Height
Mature Spread
Growing Zones
The foliage of Cobalt-n-Gold™ Hypericum has hints of blue and is covered in dainty-yellow flowers in the spring. The foliage turns a fiery red during the fall before falling to expose the exfoliating brown bark of the stems through the winter. The compact form of Cobalt-n-Gold™ Hypericum makes it a great shrub to use repeatedly in a landscape to provide color throughout the year and a cohesive design element.
Pollinators and other wildlife love hypericum. The flowers attract pollinators like mad in the spring and early summer. The berries help feed songbirds and other small wildlife through the fall and winter. Deer do not browse hypericum because of its woody stems and prickly, tough leaves. Hypericum kalmianum is drought tolerant and naturalizes in the landscape. The upright shape is excellent as edging for a garden bed or placed in tough-to-plant areas like next to a driveway or on a sloped part of the yard.
Cobalt-n-Gold™ Hypericum Care
Hypericum thrives in full sun but also performs well in part shade. It prefers well-drained soil with an average texture and neutral pH. Regular watering will produce lush and heavy-blooming plants. Infrequent watering as the plants establish will help the roots to grow deeper in the ground and be less affected by dry and hot conditions. One inch of water, either naturally or supplementary, a week is ideal. Fertilize once a year in the spring using a granular, slow-release food. Look for a balanced ratio of NPK around 10-10-10.
Light pruning after the flowers have finished will keep this shrub in shape. Only cut deep into the woody stems if rejuvenation pruning is needed. Hypericum can become leggy over time because it blooms on new growth. The best time for rejuvenating is late in the winter, just as new growth has started. The whole plant can be cut to within 8 inches of the soil. Hypericum will quickly regrow and should be kept well watered during the summer after a hard cutback.
Cobalt-n-Gold™ Hypericum Spacing
The mature size of Hypericum Cobalt-n-Gold™ is 2-3 feet high and 4-5 feet wide. Space each shrub 4 feet apart center on center to fill in an area or create a hedge.
Cobalt-n-Gold™ Hypericum Plant Facts
Growing Conditions
- Hardiness ZonesGrowing Zones
- USDA Zones 4 to 7 (perennial); grown as an annual elsewhere (outdoors year-round); grown indoors elsewhere (outdoors year-round); grown in containers elsewhere (grown as a seasonal crop)
- Sun Exposure
- Full Sun (6+ Hours Direct Sun)
- Mature Height
- 2-3 Feet
- Mature Spread
- 4-5 Feet
- Growth Habit
- , Mounded
- Water Needs
- Dry
Flowers & Foliage
- Flower Colors
- , Yellow
- Flower Description
- Yellow
- Bloom Time
- Late Spring to Early Summer
- Blooms On
-
New Wood
?
"Blooms on" tells you which stems produce flowers, which decides when it's safe to prune.
- New Wood: Flowers form on stems that grow this season. Prune in late winter or early spring without losing blooms.
- Old Wood: Flower buds form on last year's stems. Prune right after flowering. Pruning in fall or early spring removes next year's blooms.
- Both New and Old Wood: Blooms on last year's stems and again on new growth, so it flowers even after a hard winter or a mistimed pruning. Prune lightly after the first flush of blooms.
- When to Prune
- Late winter to early spring, before new growth starts
- Foliage Color
- , Green
- Foliage Description
- Green
- Foliage Type
- , Deciduous
- Seasonal Interest
- , Summer Flowering
Garden Benefits
Plant Overview
- Common Name
- Cobalt-n-Gold™ Hypericum
- Botanical Name
- Hypericum kalmianum Cobalt-N-Gold™
- Plant Type
- Shrub
Simple Plant Spacing Calculator
Please Note: The pictures below are to give a general representation of the different container sizes. The actual size/ages of plants are estimates and will vary based on type of plant, time of year, last pruning & many other factors.
Also Known As:
Quart
Plant Age:
~ 6 months - 1 year
Plant Size:
~ 4"-8"
Pot Size:
~ 4.75"H x 4.5"W
Volume:
1.50 quarts
Also Known As:
2.5 Quart Pot
Plant Age:
~ 1 - 2 years old
Plant Size:
~ 8"-12"
Pot Size:
~ 6.5"H x 6.5"W
Volume:
2.20-2.30 quarts
Also Known As:
#1 Container
1 Gallon
Plant Age:
~ 1 - 2 years old
Plant Size:
~ 10"-14"
Pot Size:
~ 7"H x 7.75"W
Volume:
2.26-3.73 quarts
Also Known As:
#2 Container
2 Gallon
Plant Age:
~ 1.5 - 3 years old
Plant Size:
~ 12"-18"
Pot Size:
~ 9.5"H x 9.5"W
Volume:
1.19-1.76 gallons
Also Known As:
#3 Container
3 Gallon
Plant Age:
~ 2 - 4 years old
Plant Size:
~ 12"-30"
Pot Size:
~9.5"H x 11"W
Volume:
2.32-2.76 gallons
Also Known As:
#5 Container
5 Gallon
Plant Age:
~3-4 years old
Plant Size:
~ 20" - 60"
Pot Size:
~11" H x 10 1/2” W
Volume:
3.5 - 4 gallons
We stand behind our plants with industry-leading guarantees to give you peace of mind.
We want your plants to arrive in great condition! If you notice any issues upon delivery, contact us within 3 days.
Starting January 1, 2026 all bushes, perennials & trees purchased come with an extended 1-year warranty for added confidence. If your plant dies due to a health issue within a year, we’ll make it right.
Plants that are currently in stock typically ship within 2-7 business days after your order is placed.
Plant Addicts ships to the lower 48 states within the U.S. Unfortunately, we do not currently ship to Alaska, Hawaii, or internationally.
This plant cannot be shipped to the following states: AK, HI. These restrictions apply only to this specific plant due to agricultural regulations or other limitations. Other plants may still be available for shipping to these states.
If you have any questions about shipping restrictions, feel free to reach out to our team!