- USDA Hardiness Zones 4 - 7
- Height 2 - 3 Feet
- Spread 2 - 3 Feet
- Full Sun
This small deciduous shrub will provide texture and color to your garden with its small blue-green leaves and bright yellow pin cushion-shaped flowers in July and August. The narrow bluish leaves and yellow clusters of flowers create a nice color contrast. This plant will attract numerous bees and butterflies. It’s a great choice for a pollinator garden or plant one near your vegetable garden to attract pollinators to that area of your yard.
Blues Festival Hypericum kalmianum 'SMHKBF' reaches 2 to 3 feet tall and wide in full sun conditions in USDA hardiness zones 4 to 7. The plant produces multiple stems and grows in a mounded shape that’s filled out close to the ground. This North American native plant is deer and drought resistant and salt tolerant.
Blues Festival St. John's Wort Care
Blues Festival St. John's Wort can be planted along roadways and salt-treated walkways without being stunted or killed by the potential salty runoff. It’s resistant to powdery mildew, leaf spot and leaf scorch. It’s low maintenance and should only be pruned after flowering if needed. Flowers appear on new growth. Do not cut this plant back to the ground.
Blues Festival St. John's Wort Spacing
This plant can be used as a specimen plant, in mass plantings, in perennial gardens, in border gardens and as a container plant. Space plants 2 to 4 feet apart on center. This plant may be less tolerant to cold if the container is left outdoors during the winter.
Blues Festival St. John's Wort Plant Facts
USDA Hardiness Zones: 4-7 |
Flower Color(s): Yellow |
Bloom Period: Summer |
Foliage Color(s): Blue & Green |
Light Exposure: Full Sun |
Height Class: Medium |
Height: 2-3 Feet |
Spread: 2-3 Feet |
Spacing: 2-4 Feet |
Habit: Mounded |
Blooms On: New Wood |
Watering: Average |
Shrub Type: Deciduous |
Scientific Name: Blues Festival® Hypericum kalmianum 'SMHKBF' USPP 25,795 |
Common Name: Blues Festival® St. John's Wort |
Other Name(s): Kalm's St. John's Wort |
Brand: Proven Winners ColorChoice® |
Drought Tolerant: Yes |
Features: Salt Tolerant; Long Blooming |
Attracts: Bees |
- SKU:
- HYPBF
Container Sizes
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.
For more detailed information, please click here.
Plant Addict Guarantee (Included On All Plant Orders)
Plant Addicts Warranty - 1 Year (Extra Purchase Required)

Guide: How to Care for Your New Plant(s)

Planter Shipping
Standard Colors: 2-3 business days
Special Order Colors: 8 weeks - this is due to the planter being custom made with the color(s) of your choice
Please Note: On special orders there can not be any cancellations
Plant Shipping
Time of Order:
Summer Shipping
- If there is extreme heat we’ll delay shipping.
- We’ll have to review what areas the plants are traveling through along with your location
Once your plant is shipped you’ll receive an email with tracking information. Depending on the above criteria we’ll ship your plant(s) towards beginning of the following week from your order. We put together this helpful guide of what to do when you receive your plants in the mail.
It is important to know that all of our plants are clearly labeled for which growing zones the plant can survive in. The plants are thoroughly trialed and tested in every growing zone before we state the plant can grow in a zone. Again, our #1 priority is to ship the plants to you healthy and ready to thrive in your location. So we will do everything in our power to do so.