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Blue Moon Woodland Phlox

Phlox divaricata 'Blue Moon'

  • Native Woodland Phlox with Fragrant Violet-Blue Blooms Perfect for Shady Garden Spaces
  • Cold Hardy: Thrives in Zones 3-8
  • Grows 1 ft Tall, 1-2 ft Wide
  • Showy Blue, Purple Blooms From Early Spring to Late Spring
  • Native, Pollinator-Friendly - Attracts Bees and Butterflies
Regular price $3582
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Plant Size

Planting & Care

Where to Plant

  • Sunlight: Blue Moon Woodland Phlox thrives in partial shade, ideally receiving 2 to 6 hours of filtered morning light. While it can handle deep shade, providing dappled sunlight ensures the most prolific flower production and keeps the foliage dense rather than leggy.
  • Soil: This plant prefers rich, moist, and well drained soil that is high in organic matter. If you have heavy clay or sandy soil, mix in plenty of compost or leaf mold to mimic the natural floor of a forest, which helps retain moisture while preventing root rot.

Watering Requirements

During the first growing season, water your Phlox twice a week to keep the soil consistently moist like a wrung out sponge. Once established, this variety can handle brief dry spells, but inconsistent watering often leads to powdery mildew or premature dormancy. To keep the plant lush and prevent stress, provide about an inch of water per week during the heat of summer.

Pruning Tips

This perennial blooms on old wood from the previous season, so avoid cutting it back in early spring. Instead, wait until the flowers fade in late spring to shear the plant back by half. This "haircut" encourages fresh foliage growth and prevents the center of the clump from becoming woody or bare, ensuring a tidy carpet of green for the rest of the year.

Fertilizer Needs

Apply a balanced, slow release fertilizer in early spring just as new growth emerges to fuel the upcoming bloom cycle. Avoid using high nitrogen fertilizers late in the summer as this promotes soft, tender growth that is easily damaged by winter frosts. A light mulch of compost around the base of the plant each spring is often all the extra nutrition this woodland native needs.

Delivery and Shipping

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Ships in 7-10 business days • Tracking provided • Weather protected

Under $50 $9.99
$50 - $99.99 $14.99
$100 - $149.99 $16.99
$150 - $198.99 $24.99
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Specifications

Plant specifications
Plant Characteristics Cold hardy, Native, Flowering, Fragrant, Groundcover, Attracts pollinators, Attracts Butterflies, Container Friendly
Hardiness Zone 3a, 3b, 4a, 4b, 5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b
Sunlight Full sun
Height 1 ft
Width 1-2 ft
Watering Needs Moderate
Preferred Soil Clay, Loamy, Peaty, Sandy
Growth Rate Moderate
Growth Habit Compact, Spreading
Plant Life Cycle Perennial
Blooms In Spring
Flower Color Blue, Purple
Foliage Color Green
Fragrant Yes
Native Yes
Suitable Space Outdoors
Plant Name Phlox
Botanical Name Phlox divaricata 'Blue Moon'
Species divaricata
Cultivar Blue Moon
Class Magnoliopsida
Does Not Ship To AK, HI, ID, MT, PR

Frequently Asked Questions

Is Blue Moon Phlox the same as Woodland Phlox?

  • Yes, Blue Moon is a cultivated variety of Phlox divaricata, also called Woodland Phlox. It's selected for its especially vivid blue flowers and dense growth.

Will Woodland Phlox rebloom?

  • It blooms heavily in spring and may rebloom lightly with consistent deadheading and adequate moisture.

How do I keep Woodland Phlox from spreading too much?

  • It spreads slowly by rhizomes. To manage spread, divide clumps every few years and remove any wayward runners.

Can I grow Blue Moon Phlox in containers?

  • Yes! Use a shady container garden with moisture-retentive soil and companion shade plants.

Is Woodland Phlox evergreen?

  • It's semi-evergreen in mild winters, but in colder climates, the top growth dies back and reliably returns in spring.

Is Blue Moon Phlox deer-resistant?

  • Yes, it's not a favorite of deer and tends to be left alone.