Phlox Seeds

21st Century Mix Phlox Seeds Vigorous plant with superior flower power. More >>

Item #A-550 | 50 Seeds | Price: $4.95 Qty:

Crystal Mix Phlox Seeds This attractive mix produces unique, star-shaped, 3/4 to 1-1/4 in. flowers in vivid colors that stand nicely above the foliage. More >>

Item #A-549 | 35 Seeds | Price: $3.95 Qty:

How To Grow Phlox From Seeds

Germination

• Cover the seed thoroughly with coarse vermiculite.
• Darkness is required for germination.
• Germination takes 3 to 9 days.
• Use a well-drained, disease-free, soil less medium with a pH of 5.8 to 6.0 and an EC less than 0.75.
• Phlox is very sensitive to high salts � particularly high ammonium � during germination.

Temperature:

• Germination: (3 to 9 days): 65 to 70�F (18 to 21�C)
• Cotyledon stage: 60 to 65�F (15 to 18�C)
• True leaves: 60 to 65�F (15 to 18�C)

Light:

• Stage 1: Darkness is required for germination.
• After germination: 500 to 1,000 f.c.
• Seedling maturity: Up to 1,500 to 3,000 f.c.

Humidity:

• Maintain 95 to 100% relative humidity (RH) until radicles emerge.

Soil Moisture:

• Keep soil moisture high until radicle emergence, then reduce moisture levels after the radicle penetrates the medium. Do not allow the seedlings to wilt.

Fertilizer:

• As cotyledons expand, feed 50 ppm N in a nitrate form. When true leaves begin to develop, increase to 100 to 150 ppm N.

Growing On to Finish

Media:

• Use a well-drained, disease-free, soilless medium with a pH of 5.5 to 6.2 and a medium initial nutrient charge.

Temperature:

• Nights: 50 to 55�F (10 to 13�C)
• Days: 55 to 60�F (13 to 15�C)

Light:

• 4,000 to 5,000 f.c.

Irrigation:

• Irrigate plants before they are wilted severely to avoid damage.

Fertilizer:

• Fertilize every other irrigation with 15-0-15 alternating with 20-10-20 at 150 to 200 ppm N.