General Information

  • Category- Flower
  • Binomial Name- Polemonium
  • Common Names-Jacob’s ladder
  • Spread- 12-24 inches**
  • Height- 24-30 inches**
  • Average production- 2-5 flowers per plant
  • Days to Maturity- 270-300 days*

Environmental Requirements

  • Soil-  Well-drained soils
  • Soil Moisture- 30%
  • Soil pH- 6.2-7.0
  • Soil temperature- 18-30 C
  • Climate temperature- 18-32 C
  • Sun Requirements- Partial Sun
  • Best Time to Plant- spring or autumn

Tips to grow Polemonium

  1. Arrange good quality Polemonium seed.
  2. The soil should be well-drained.
  3. Loosely cover the seed with soil, then water. Keep the soil moist, and be sure to mark the spot so that you do not disturb it.
  4. To start seed indoors sow two months before your last frost date if you want to transplant in spring, or sow in mid-summer if you want to transplant in the fall.
  5. Add organic mulch underneath your hydrangeas to help keep the soil moist and cool for better growth.
  6. The seeds take up to a month to germinate and should be kept moist until then. Transplant outdoors in spring just before your last frost date, or in early to mid-fall.
  7. Cut the flower heads when the flowers have matured and developed a papery consistency. Remove leaves from stems, and hang upside down in a warm, dry, dark, airy room.
  8. To enhance flower color, spritz dry flowers with diluted fabric dye.

** The values are standard values but might change a bit.

*to get flowers quickly, the users can buy plants from nursary

Flowers