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Phlox

Phlox drummondii

Annual phlox is a low, bushy winter annual with dense clusters of flowers in pink, red, purple, white and bicolours. It covers pots and borders with colour from winter into spring.

Botanical FamilyPolemoniaceae
Native RegionTexas, USA
Growth RateFast
Mature Size15–45 cm tall
Bloom PeriodWinter to spring
Common NamesAnnual phlox, Drummond's phlox
Phlox

Photo: Varun Pabrai · CC BY-SA 4.0, via Wikimedia Commons

Essential Care Requirements

Light

Full sun

Watering

Moderate

Water at the base when the top of the soil is dry.

Soil

Fertile, well-drained soil; pH 6.0–7.0.

Temperature and humidity

2–30 °C · Moderate humidity

Feeding

Feed every three weeks with a balanced fertilizer.

Pruning and propagation

Propagate by seed

Shear off faded flowers for a second flush.

Phlox is not toxic to people or pets.

Top Cultivation Tips

Sow in October in the plains.

Space for airflow to prevent mildew.

Great for edging and window boxes.

Mixed colours give a cottage-garden look.

Common problems

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Phlox (Phlox drummondii) care guide