
Light Needs

Mature Height

Mature Spread

Growing Zones
Volcano® Ruby Garden Phlox is a colorful, fuss-free perennial and workhorse of the garden. Ruby red blooms appear from late June through late July, on compact, sturdy stems. Plant Volcano® Ruby Garden Phlox near a walkway or under a window to enjoy the explosion of bright, head-turning color and their subtle fragrance. They make an impressive color impact planted en masse.
Volcano® Ruby Garden Phlox is a neat and compact perennial that produces sturdy branches from a central base point. Bred for high mildew resistance, once established they are very dependable garden performers. In addition to their vibrant color, their light fragrance attracts hummingbirds and butterflies. Volcano® Ruby Garden Phlox grows 28” in height with up to a 24-36” spread.
Volcano® Ruby Garden Phlox Care
Plant Volcano® Ruby Garden Phlox in a location that receives at least 6 hours of direct sunlight and partial afternoon shade. Space plants to allow for plenty of air circulation around each plant. Volcano® Ruby Garden Phlox will benefit from using a slow-release granular formula when initially planted. When the first flowers fade, apply a balanced, diluted, liquid fertilizer to encourage a second flush of blooms. Incorporating generous amounts of organic matter into the soil, particularly if the soil is lean or sandy, delivers essential nutrients slowly to the roots. Try using peat moss, garden compost, or well-rotted manure.
Water Volcano® Ruby Garden Phlox regularly, ideally in the morning, maintaining moist but not soggy soil. Avoid overhead watering by using drip irrigation or hand watering at the base of the plant to avoid splashing water on the leaves. Deadhead terminal blooms to encourage longer flowering. New flower buds will appear along the stem for a second flush, and they will continue to flower, often up until fall. Divide Volcano Ruby Garden Phlox plants after 3 years.
Volcano® Ruby Garden Phlox Spacing
Plant Volcano® Ruby Garden Phlox in garden areas that long to be filled with vibrant pops of color with other summer-flowering favorites. They are lovely in native plant gardens, in meadows, and naturalized areas. When planted en masse, space plants 24 inches or more on center, to allow adequate airflow and sunlight to reach all sides of the plant.
Volcano® Ruby Garden Phlox Information
USDA Hardiness Zones: 4 - 10 |
Plant Type: Perennial |
Light Exposure: Full Sun (At Least 6 Hours Of Direct Sunlight) |
Mature Height: 24 - 28 Inches |
Mature Spread: 2 - 3 Feet |
Spacing: 2 - 3 Feet |
Habit: Mounded |
Flower Color(s): Red |
Flower Description: |
Bloom Period: Summer |
Foliage Type: Herbaceous |
Foliage Color(s): Green |
Foliage Description: |
Seasonal Interest: Summer Flowering |
Watering: Average |
Resists: Disease |
Tolerates: N/A |
Attracts: Butterflies, Hummingbirds |
Container Role: Filler |
Uses: Borders, Containers, Groundcovers, Mass Planting, Specimen or Focal Point |
Features: Attracts Pollinators, Cut Flowers |
Brand: Volcano Phlox |
Common Name: Volcano® Ruby Garden Phlox |
Other Name(s): |
Scientific Name: Phlox Volcano Ruby |
- SKU:
- 1231007470-pc
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!