
Light Needs

Mature Height

Mature Spread

Growing Zones
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
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, 2025 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.

Pre-ordered plants are scheduled to ship in Spring 2025. We carefully plan our shipping dates based on your USDA Plant Hardiness Zone to ensure optimal planting conditions upon arrival. Want it sooner/later? Reach out, and we'll try our best to accommodate.
Estimated ship week for pre-ordered plants will ship based on growing zones as shown below.
Growing Zone | Estimated Ship Week |
---|---|
Zone 10 | March 31th |
Zone 9 | March 31st |
Zone 8 | April 7th |
Zone 7 | April 14th |
Zone 6b | April 21st |
Zone 6a | April 28th |
Zone 5b | May 5th |
Zone 5a | May 12th |
Zone 4 | May 19th |
Zone 3 | May 26th |
Note: These are only estimated ship dates. Plants may ship out later depending on weather & growing conditions of the plant.
Note: Only plants indicated as pre-order will ship as shown above. All other plants and hard goods will ship as normal.
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: Idaho, 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!