Phlox Care Calendar: What to Do When for Best Results

by

Phlox is a beautiful and vibrant perennial flower that can brighten up any garden. To keep your phlox healthy and blooming all season, it’s essential to follow a proper care schedule. This guide provides a month-by-month calendar of what to do when for the best results.

Spring Care (March – May)

Spring is the time to prepare your phlox for the growing season. As the weather warms, follow these steps:

  • March: Start planning your planting. If starting from seeds indoors, do so in late March.
  • April: Plant new phlox outdoors after the last frost date. Ensure the soil is well-draining and rich in organic matter.
  • May: Mulch around the plants to retain moisture and suppress weeds. Begin watering regularly as temperatures rise.

Summer Care (June – August)

Summer is crucial for maintaining healthy, blooming phlox. Follow these guidelines:

  • June: Water deeply once a week, more often during hot, dry spells. Fertilize with a balanced, water-soluble fertilizer every 4-6 weeks.
  • July: Deadhead spent flowers to promote continuous blooming. Monitor for pests such as aphids and treat as necessary.
  • August: Keep the soil moist and mulch to regulate soil temperature. Watch for signs of powdery mildew and treat promptly.

Fall Care (September – November)

Fall is the time to prepare your phlox for winter and ensure healthy growth next year.

  • September: Reduce watering as the weather cools. Fertilize lightly to support root development.
  • October: Cut back dead or diseased stems after the first frost. Mulch heavily around the base of the plants.
  • November: Protect the roots with a thick layer of mulch, especially in colder climates.

Winter Care (December – February)

During winter, your phlox requires minimal intervention. Focus on protection and planning for the next season.

  • December: Ensure mulch is in place to insulate the roots. Avoid disturbing the plants.
  • January: Check mulch layers and add more if necessary to prevent freeze-thaw damage.
  • February: Prepare for early spring planting by ordering seeds or cuttings. Plan your garden layout.

Additional Tips for Healthy Phlox

Besides following the monthly calendar, keep these tips in mind:

  • Plant in full sun for the best blooms.
  • Ensure good air circulation to prevent powdery mildew.
  • Divide overcrowded clumps every 3-4 years to maintain vigor.
  • Use organic mulch to improve soil health and moisture retention.