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Eryngium planum

Blue Hobbit

Flat Sea Holly
Item no. L8750
  • Aptly named for its unique colour and stature, Eryngium Blue HOBBIT brings a mystique to both the garden and the mixed container
  • Blue HOBBIT can be used as a border plant or as a unique specimen plant within mixed containers
  • Blue HOBBIT performs in a variety of climates, but truly thrives in hot, sunny climates with fertile soils
  • The world's first genetically compact Eryngium, Blue HOBBIT has silver blue stems that emerge from basal rosettes, before forming a globe-like flower head
  • Blue HOBBIT works well as a border plant in large masses, or as a novel specimen in the landscape
  • Blue HOBBIT is a beautiful accent plant, when combined with Melinis SAVANNAH, Echinacea PRIMADONNA Deep Rose and the Lobelia Fan® series in the perennial garden
  • Perennial

  • 10-12 months

  • 12″ / 30 cm

  • 4-8

  • 12-1

  • Sun

  • Raw

  • Landscape

Remember Recommend

Culture guide

  • Uses: plants for the border, attractive for bees and butterflies
  • Exposure: Sun
  • Garden height: 12″ / 30 cm
  • Crop time: 10-12 months
  • Sow time: November-March for green pots,
    July-September for flowering in pots the following year
  • Sowing method: 4-5 seeds per plug
  • Germination*: Germinate at 62-75 °F (22-24 °C) for 7-10 days under lights.
    Sow in a well-drained media and cover lightly.
  • Growing On: Transplant into well-drained media with pH of 5.5 to 6.5. Grow on at 60-70 °F (15-21 °C). Fertilize at 50-100 ppm nitrate nitrogen after initial transplant increasing to 100-150 ppm once plants are well established.
  • Media: Use a well-drained, growing perennial substrate, pH: 6.0-7.5. Field: humus, sandy loamy soils with good drainage.
  • Temperature: Grow at 15-18 °C or outdoors. In winter indoors frost free at 3-5 °C or outdoors. Outdoor fleece cover needed. In spring the plants start to grow at 12-18 °C or outdoors at ambient conditions. The containers can be stored in cold storage at -1 °C and set up in intervals for forcing afterwards.
  • Fertilization: High fertilization levels are required.
* Germination Stages (from seed to finished young plant)

Stage I Starts with the radicle breaking through the testa. The roots are touching the medium. Ends with fully developed cotyledons.
Stage II Starts from fully developed cotyledons. Ends with the fully developed true leaf or true leaf pair.
Stage III Starts from the fully developed true leaf or true leaf pair and ends with 80% of the young plants being marketable.
Stage IV All young plants are ready for sale and in the process of being hardened off. This stage lasts about 7 days.

The cultural recommendations are based on results from trials conducted under Central European conditions. Different conditions in other parts of the world may lead to deviations in results achieved.