Summer Color & Pollinators From Sun to Part Shade
Phlox brings months of color to central Iowa landscapes—from creeping phlox carpets in spring to tall garden phlox in mid‑summer. These reliable perennial flowers attract butterflies and hummingbirds and mix effortlessly into borders and cottage gardens. Find phlox and other perennials at Holub Greenhouses in Ames.
Why Iowa Gardeners Choose Phlox
- Long bloom window with a wide range of colors
- Attracts butterflies and hummingbirds; great cut flower
- Includes creeping phlox (spring groundcover) and garden phlox (tall mid‑summer spikes)
- Works in full sun to light shade depending on type
- Newer series offer improved mildew resistance for humid summers
Planting & Spacing Instructions for Phlox
- Best time to plant Phlox: Spring or early fall
- Light requirements: Creeping phlox—full sun; Garden phlox—full sun with good airflow (part sun tolerated)
- Soil requirements for Phlox: Well‑drained, amended with compost; avoid soggy sites
- Size/spacing for Phlox:
- Creeping Phlox: 4–6″ tall; space 12–18″
- Garden Phlox: 2–4′ tall; space 18–24″
- Hardiness: Typically USDA Zones 3–9
Phlox Care Made Simple
- Water: Keep evenly moist the first season; mulch to conserve moisture
- Airflow: Space and thin garden phlox to deter powdery mildew
- Feeding: Light compost in spring; avoid heavy nitrogen
- Deadheading: Remove spent blooms to encourage side shoots and extended color
- Cleanup: Cut stems to the ground after frost; remove debris to reduce disease pressure
Plants that Partner Well with Phlox
Blend with echinacea, salvia, yarrow, black‑eyed Susan (rudbeckia), daylily, Russian sage, and ornamental grasses for layered summer color.
Shop For Phlox at Holub Greenhouses in Ames
Visit Holub Greenhouses—your local garden center near Ames—for sun‑loving phlox selected to thrive in central Iowa. Our team can help you choose heights and colors to keep beds blooming for months.