Starfire Garden Phlox – Red Flowers, Bare Root

Bring rich summer color and fragrance to your perennial border with Starfire garden phlox (Phlox paniculata 'Starfire'). Dense clusters of deep-red flowers rise above upright, clump-forming growth, creating a bold focal point among softer-colored perennials. Plant near a path or seating area to enjoy the fragrant blooms, or cut a few stems for an indoor arrangement.

Plant highlights

• Variety: Starfire garden phlox.
• Life cycle: Perennial.
• Flowers: Fragrant, deep-red tubular flowers with five flat lobes, carried in dense clusters.
• Height: Approximately 38 inches at maturity, depending on conditions.
• Habit: Upright and clump forming.
• Bloom season: Summer.
• Light: Full sun to light shade; full sun is preferred.
• Uses: Perennial borders, grouped plantings, formal beds, bird gardens, and fresh cut flowers.

What you receive

Choose 1 bare root or a pack of 3 bare roots. This listing is for bare-root plants, not seeds or a flowering potted display.

Planting bare roots

1. Prepare a planting area with rich, moderately fertile soil that retains moisture while draining well.
2. Dig a hole wide enough to accommodate the roots without bending or circling them.
3. Position the plant with the crown, where the roots meet the stems, approximately 1–2 inches below the soil surface, following any planting instructions supplied with your roots.
4. Backfill gently and water thoroughly to settle the soil around the roots.
5. Keep the planting area consistently moist while new growth develops, without leaving the soil waterlogged.

Garden care

Grow in full sun to light shade with good air circulation. Leave room between plants and thin crowded stems when necessary to help reduce powdery mildew problems. Water during dry spells, directing water to the soil rather than overhead onto the foliage. Starfire garden phlox is not a drought-tolerant choice.

Apply a summer mulch to help retain moisture and keep the root zone cool. Remove faded flower clusters to encourage a longer display and reduce unwanted self-seeding. Lift and divide established clumps approximately every 3–4 years, or when crowding reduces their vigor.

Growing in containers

Starfire can provide a tall centerpiece in a patio planter, but its mature height and clump-forming roots need a roomy, stable container rather than a small decorative pot.

• Container: Choose a large pot with drainage holes and space for the roots to develop.
• Potting mix: Use a moisture-retentive, well-draining container mix.
• Planting: Spread the roots naturally and follow the same crown-depth guidance as for garden planting.
• Placement: Provide full sun to light shade and good airflow around the foliage.
• Watering: Check moisture often, especially during hot or windy weather. Water thoroughly when needed and let excess water drain away. Avoid letting the root ball dry out completely.
• Feeding: Follow the directions on a fertilizer labeled for flowering container plants, accounting for fertilizer already in the potting mix.
• Long-term care: Divide or repot crowded clumps. Protect container roots from severe winter exposure according to local conditions.

Cut flowers and garden display

Use the deep-red flower clusters to bring contrast to mixed perennial beds or plant several together for a concentrated summer display. Garden phlox flowers attract hummingbirds and make useful fresh-cut stems. Remove foliage that would sit below the vase waterline and place cut stems promptly in clean water.