Grow Your Garden


Japanese Holly (Ilex crenata)

  • Japanese Holly (Ilex Crenata) http://www.sagebud.com/japanese-holly-ilex-crenata/
    Credit: Eugene Zelenko | Own work | License: CC-BY-SA-3.0,2.5,2.0,1.0 GFDL
  • Japanese Holly (Ilex Crenata) http://www.sagebud.com/japanese-holly-ilex-crenata/
    Credit: Dalgial | Own work | License: CC-BY-SA-3.0 GFDL
  • Japanese Holly (Ilex Crenata) http://www.sagebud.com/japanese-holly-ilex-crenata/
    Credit: Dalgial | Own work | License: CC-BY-SA-3.0-migrated GFDL
  • Japanese Holly (Ilex Crenata) http://www.sagebud.com/japanese-holly-ilex-crenata/
    Credit: Dalgial | Own work | License: CC-BY-SA-3.0-migrated GFDL
  • Japanese Holly (Ilex Crenata) http://www.sagebud.com/japanese-holly-ilex-crenata/
    Credit: KENPEI | KENPEI's photo | License: CC-BY-SA-2.1-JP CC-BY-SA-3.0-migrated GFDL
  • Japanese Holly (Ilex Crenata) http://www.sagebud.com/japanese-holly-ilex-crenata/
    Credit: KENPEI | KENPEI's photo | License: CC-BY-SA-2.1-JP CC-BY-SA-3.0-migrated GFDL
  • Japanese Holly (Ilex Crenata) http://www.sagebud.com/japanese-holly-ilex-crenata/
    Credit: KENPEI | KENPEI's photo | License: CC-BY-SA-2.1-JP CC-BY-SA-3.0-migrated GFDL
  • Japanese Holly (Ilex Crenata) http://www.sagebud.com/japanese-holly-ilex-crenata/
    Credit: KENPEI | KENPEI's photo | License: CC-BY-SA-2.1-JP CC-BY-SA-3.0-migrated GFDL
  • Japanese Holly (Ilex Crenata) http://www.sagebud.com/japanese-holly-ilex-crenata/
    Credit: KENPEI | KENPEI's photo | License: CC-BY-SA-2.1-JP CC-BY-SA-3.0-migrated GFDL
  • Japanese Holly (Ilex Crenata) http://www.sagebud.com/japanese-holly-ilex-crenata/
    Credit: KENPEI | KENPEI's photo | License: CC-BY-SA-2.1-JP CC-BY-SA-3.0-migrated GFDL
  • Japanese Holly (Ilex Crenata) http://www.sagebud.com/japanese-holly-ilex-crenata/
    Credit: KENPEI | KENPEI's photo | License: CC-BY-SA-2.1-JP CC-BY-SA-3.0-migrated GFDL
  • Japanese Holly (Ilex Crenata) http://www.sagebud.com/japanese-holly-ilex-crenata/
    Credit: KENPEI | KENPEI's photo | License: CC-BY-SA-2.1-JP CC-BY-SA-3.0-migrated GFDL
  • Japanese Holly (Ilex Crenata) http://www.sagebud.com/japanese-holly-ilex-crenata/
    Credit: User:SB_Johnny | Own work | License: CC-BY-SA-3.0-migrated GFDL
  • Japanese Holly (Ilex Crenata) http://www.sagebud.com/japanese-holly-ilex-crenata/
    Credit: Photo by and (c)2006 Derek Ramsey (Ram-Man). Location credit to the Chanticleer Garden. | Own Picture | License: CC-BY-SA-3.0-migrated GFDL
  • Japanese Holly (Ilex Crenata) http://www.sagebud.com/japanese-holly-ilex-crenata/
    Credit: Photo by and (c)2006 Derek Ramsey (Ram-Man). Location credit to the Chanticleer Garden. | Own Picture | License: CC-BY-SA-3.0-migrated GFDL
  • Japanese Holly (Ilex Crenata) http://www.sagebud.com/japanese-holly-ilex-crenata/
    Credit: Original uploader was Jasper33 at en.wikipedia | Transfered from en.wikipedia | License: PD-user
ILCR2.jpg

Ilex Crenata, or more commonly know as Japanese Holly, is a tree shrub with dark green foliage and yellow flowers of the genus Ilex. It has a slow growth rate and a height of 10 feet at maturity. Its duration is perennial which means it will grow year after year. It's active growth period is spring and summer, blooms during mid spring and is tolerant of shade. Ilex Crenata or Japanese Holly's floral region is North America US Lower 48, specifically in the states of Delaware, Louisiana, North Carolina, New Jersey, New York, Ohio and Pennsylvania.

  • Category: Dicot
  • Genus: Ilex
  • Family: Aquifoliaceae
  • Order: Celastrales
  • Class: Magnoliopsida
  • Division: Magnoliophyta
  • Duration: Perennial
  • Growth Habit: Tree Shrub
  • Native Status: L48 (I)
  • Active Growth Period: Spring and Summer
  • Allelopath: No
  • C:N Ratio: High
  • Coppice Potential: Yes
  • Fall Conspicuous: No
  • Fire Resistance: No
  • Flower Color: Yellow
  • Flower Conspicuous: No
  • Foliage Color: Dark Green
  • Foliage Porosity Summer: Dense
  • Foliage Porosity Winter: Dense
  • Foliage Texture: Fine
  • Fruit/Seed Color: Black
  • Fruit/Seed Conspicuous: Yes
  • Growth Form: Multiple Stem
  • Growth Rate: Slow
  • Height at 20 Years Maximum (feet): 4
  • Height Mature (feet): 10
  • Leaf Retention: Yes
  • Lifespan: Long
  • Low Growing Grass: No
  • Resprout Ability: Yes
  • Shape and Orientation: Decumbent
  • Toxicity: None
  • Adapted to Coarse Textured Soils: Yes
  • Adapted to Fine Textured Soils: No
  • Adapted to Medium Textured Soils: Yes
  • Anaerobic Tolerance: None
  • CaCO3 Tolerance: None
  • Cold Stratification Required: Yes
  • Drought Tolerance: Medium
  • Fertility Requirement: Medium
  • Fire Tolerance: None
  • Frost Free Days Minimum: 160
  • Hedge Tolerance: Medium
  • Moisture Use: Medium
  • pH (Minimum): 4.5
  • pH (Maximum): 5.5
  • Planting Density per Acre Minimum: 1100
  • Planting Density per Acre Maximum: 1800
  • Precipitation (Minimum): 35
  • Precipitation (Maximum): 55
  • Root Depth Minimum (inches): 10
  • Salinity Tolerance: None
  • Shade Tolerance: Tolerant
  • Temperature Minimum (°F): -13
  • Bloom Period: Mid Spring
  • Commercial Availability: Routinely Available
  • Fruit/Seed Abundance: Medium
  • Fruit/Seed Period Begin: Spring
  • Fruit/Seed Period End: Summer
  • Fruit/Seed Persistence: No
  • Propagated by Bare Root: Yes
  • Propagated by Bulbs: No
  • Propagated by Container: Yes
  • Propagated by Corms: No
  • Propagated by Cuttings: Yes
  • Propagated by Seed: No
  • Propagated by Sod: No
  • Propagated by Sprigs: No
  • Propagated by Tubers: No
  • Seed per Pound: 29000
  • Seed Spread Rate: None
  • Seedling Vigor: Low
  • Small Grain: No
  • Vegetative Spread Rate: None




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