Light Needs
Mature Height
Mature Spread
Growing Zones
The Rocky Road Violet Blue Spring Phlox, also known as the Phlox Hybrida, is the perfect perennial for drier environments. WWith small flowers of varying blue and violet shades against green foliage, the striking petals stand out easily and will attract an array of butterflies, hummingbirds, and bees. These beautiful perennials will reach a height of no more than 6 inches but can gain a substantial width of about 36 inches. With this plant, you can expect new flowers to bloom in the latter half of spring.
Native to North America, the fragrant and evergreen Rocky Road Violet Blue Spring Phlox is both drought and deer resistant. However, you may need to watch out for aphids, thrips, and spider mites as these can damage your perennial. Additionally, your plant may be susceptible to certain fungal pathogens including Botrytis, Phoma, Anthracnose, mildews, Thielaviopsis, Colletotrichum, and Fusarium. Fortunately, these perennials are fairly simple to grow and won’t require much maintenance on your behalf. You can use them for rock gardens, slopes, mass planting, borders, and beds. With their compressed and spreading growth habit, they will cover the ground around them.
Rocky Road Violet Blue Spring Phlox Plant Care
These perennials benefit the most from full sun exposure for at least 6 hours each day. You can use gritty, neutral, and well-drained soil with a pH of 7 when planting. Not much watering is required, just enough to keep the soil moderately moist or just slightly dry. To promote healthy growth, you can use fertilizer once a month.
You can shear your Rocky Road Violet Blue Spring Phlox back and get rid of any lifeless leaves at the beginning of summer after its blooming period has finished. Doing so will make it easier for your plant to grow thicker foliage and bloom new flowers.
Rocky Road Violet Blue Spring Phlox Plant Spacing
When planting these perennials, it is important to leave roughly 34 to 38 inches of space between each one to allow for comfortable growth.
Rocky Road Violet Blue Spring Phlox Plant Facts
Growing Conditions
- Hardiness ZonesGrowing Zones
- USDA Zones 4 to 8 (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
- 6-11 Inches
- Mature Spread
- 3 Feet
- Growth Habit
- , Spreading
- Water Needs
- Average
Flowers & Foliage
- Flower Colors
- , Blue, Purple
- Flower Description
- Blue, Purple
- Bloom Time
- Spring
- Foliage Color
- , Green
- Foliage Description
- Green
- Foliage Type
- , Herbaceous
- Seasonal Interest
- , Spring Flowering
Garden Benefits
Plant Overview
- Common Name
- Rocky Road Violet Blue Spring Phlox
- Botanical Name
- PHLOX 'ROCKY ROAD VIOLET BLUE'
- Brand
- Plants That Work
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
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We want your plants to arrive in great condition! If you notice any issues upon delivery, contact us within 3 days.
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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!