How to Grow Phlox

Phlox Germination Information

Phlox is the botanical name for Annual Phlox
Phlox Seed Germination How to Sow Phlox:
  • Sow indoors at 55-65° in a transplantable medium as the roots resent being disturbed
  • Expect germination in 10-15 days
  • Seeds can also be sown outdoors as soon as the soil can be worked, in early spring
  • Indoor and out, cover the seeds as they need darkness to germinate
  • Note: the weakest seedlings often produce the best flower colors
  • When sowing seed outdoors, we recommend a maximum planting depth of 4X the width of the seed

How to Grow Phlox:
Transplanting: Transplant when there are at least two sets of true leaves, being careful not to disturb the roots

Spacing: Space plants 6 inches apart in full sun and a rich, light, sandy soil with excellent drainage

Temperature: Grow on under 55-60°days/50-55° nights

Additional Care: Keep plants moist during the growing season, feed heavily, and deadhead spent flowers. Plants are very heat tolerant

Appearance and Use:

An annual grown for spring flower display in beds and borders, as edging, in containers and rock gardens. Flowers cut well for fresh use. The plants are erect from 8-15 inches high and spreading to 12 inches wide. The large flower heads, to 10 inches tall, are composed of 11/2 inch diameter, fragrant flowers. The showy flowers come in colors of pink, red, lavender, and white. The mid-green leaves are hairy and nearly ovate from 1-3 inches long by 1/2-2 inches wide


About Phlox:
Pronunciation:  floks drum-mond’e-i
Lifecycle:  Annual
Origination: Polemoniaceae; native to Texas
Common Name: Annual Phlox