Looking for a perennial that will grow in that hot, sun-baked spot in your landscape? Sea Holly is just the plant! It thrives in that type of climate, and even grows in high-salt soils too (think seaside).
Sea Holly is adored by florists and gardeners alike for its unique and long lasting, blue, spiny flowers which add interesting color and texture to bouquets or the garden. They are produced on intensely silver-blue stems and stand high above the basal rosette of blue-green, deeply toothed, smooth textured leaves.
'Blue Glitter' is an improvement over older varieties because it matures quickly, produces a greater number of flowers, and has a more intense blue flower color. It does not require vernalization to bloom, which is an advantage to gardeners in southern zones.
This species of Eryngium is one of the hardiest and it has proven to be a reliable, long-lived perennial.
30ct Plug Tray |
72ct Plug Tray |
Height:
6.0-8.0 Inches
Spread:
8.0-12.0 Inches
Scape Height:
36.0-40.0 Inches
Hardiness Zones:
4,5,6,7,8
Flower Color:
Blue shades
Foliage Color:
Green shades
Sunlight:
Full Sun (> 6 hrs. Direct Sun)
Water Requirements:
Low Water Needs Average Water Needs
Soil Quality:
Poor Soil Quality Average Soil Quality
Soil Chemistry:
Neutral Soil (pH = 7.0) Alkaline Soil (pH > 7.0)
Bloomtime:
Midsummer
Attracts Wings:
Attracts Butterflies Bee Friendly
Seasonal Interest:
Dried Seed Heads
Growth Rate:
Medium
Garden Style:
Eclectic
Other Features:
Border Plant Cut Flower Cut Foliage Dried Flower Drought Tolerant Salt Tolerant
Origin:
Not Native to North America
Grow this plant in full sun and very well-drained soil. Eryngium does not like to be overwatered. It spreads to form a small patch and tends to spread more quickly in light soil. The flower color tends to be more intense in higher temperatures.
Container:
Trade 1 Gallon Container
When to Plant:
Late winter to spring
Finish:
8-10 weeks
Container:
Trade 1 Gallon Container
When to Plant:
Late winter to spring, summer
Finish:
Best results planting a 72ct in summer for following spring sales.
Growing Temperature:
55-60° F
Holding Temperature:
50-60° F
Soil PH:
5.5-6.5
EC (What is EC?):
1-1.5 pour through method
Fertility:
Light to moderate feeders. Fertilization rates of 50-100 ppm water soluble liquid feed are recommended.
For Controlled Release or Slow Release Fertilizer, see your preferred supplier for recommended rates for incorporation or top dressing, as it varies by fertilizer.
Vernalization:
Not required for 'Blue Glitter'.
Pests & Diseases:
Leaf spots (Cercospora, Alternaria), root rot if grown too wet.
Aphids
Potting & Timing:
Plant in a well-drained soilless media.
Moisture:
For potting soil use a well-drained, professional planting media. Requires low levels of moisture, sensitive to overwatering. Water in thoroughly when first planted and allow to dry down before irrigating again.
Planting Level:
Plugs should be planted even with soil line.
PGRs/Pinching:
PGRs can be beneficial in controlling stem height but may require multiple applications. Apply sprays of Daminozide (B-Nine, Dazide) at 2,500-5,000 ppm or Uniconazole (Concise, Sumagic) at 5-10 ppm.
Lighting:
Eryngium is a long day plant. Maintain long days and high light levels for best flower initiation and best flower color.
Fleuroselect Gold Medal -- 2007
Height:
6.0-8.0 Inches
Spread:
8.0-12.0 Inches
Scape Height:
36.0-40.0 Inches
Hardiness Zones:
4,5,6,7,8
Flower Color:
Blue shades
Foliage Color:
Green shades
Sunlight:
Full Sun (> 6 hrs. Direct Sun)
Water Requirements:
Low Water Needs Average Water Needs
Soil Quality:
Poor Soil Quality Average Soil Quality
Soil Chemistry:
Neutral Soil (pH = 7.0) Alkaline Soil (pH > 7.0)
Bloomtime:
Midsummer
Attracts Wings:
Attracts Butterflies Bee Friendly
Seasonal Interest:
Dried Seed Heads
Growth Rate:
Medium
Garden Style:
Eclectic
Other Features:
Border Plant Cut Flower Cut Foliage Dried Flower Drought Tolerant Salt Tolerant
Origin:
Not Native to North America
Grow this plant in full sun and very well-drained soil. Eryngium does not like to be overwatered. It spreads to form a small patch and tends to spread more quickly in light soil. The flower color tends to be more intense in higher temperatures.
Container:
Trade 1 Gallon Container
When to Plant:
Late winter to spring
Finish:
8-10 weeks
Container:
Trade 1 Gallon Container
When to Plant:
Late winter to spring, summer
Finish:
Best results planting a 72ct in summer for following spring sales.
Growing Temperature:
55-60° F
Holding Temperature:
50-60° F
Soil PH:
5.5-6.5
EC (What is EC?):
1-1.5 pour through method
Fertility:
Light to moderate feeders. Fertilization rates of 50-100 ppm water soluble liquid feed are recommended.
For Controlled Release or Slow Release Fertilizer, see your preferred supplier for recommended rates for incorporation or top dressing, as it varies by fertilizer.
Vernalization:
Not required for 'Blue Glitter'.
Pests & Diseases:
Leaf spots (Cercospora, Alternaria), root rot if grown too wet.
Aphids
Potting & Timing:
Plant in a well-drained soilless media.
Moisture:
For potting soil use a well-drained, professional planting media. Requires low levels of moisture, sensitive to overwatering. Water in thoroughly when first planted and allow to dry down before irrigating again.
Planting Level:
Plugs should be planted even with soil line.
PGRs/Pinching:
PGRs can be beneficial in controlling stem height but may require multiple applications. Apply sprays of Daminozide (B-Nine, Dazide) at 2,500-5,000 ppm or Uniconazole (Concise, Sumagic) at 5-10 ppm.
Lighting:
Eryngium is a long day plant. Maintain long days and high light levels for best flower initiation and best flower color.
Fleuroselect Gold Medal -- 2007
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