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    • Easy Roses
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    • Autumn Crocus
    • Bear's Breeches
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    • Black-eyed Susans
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    • Chrysanthemums
    • Crocuses
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    • Dawn Redwood
    • Daylily
    • Delphiniums
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    • Doghobble, Leucothoe
    • Dwarf Alberta Spruce
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    • Elderberries, Sambucus
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    • Hydrangeas, Mophead & Lacecap
    • Jack-in-the-pulpit, Cobra Lily
    • Japanese Anemones
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    • Japanese Skimmia
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    • Laurustinus viburnum
    • Lavenders
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    • Oregon Grape Holly
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Jack-in-the-pulpit
​Cobra lily

Amanda's Garden Consulting Company
Japanese cobra lilies, A. sikokianum

A woodland delight!

Arisaema triphyllum,Arisaema sikokianum,Arisaema tortuosum,Arisaema ringens,Jack-in-the-pulpit,cobra lily,Arum,woodland native plant,shade plant,May flowers,The Garden Website.com,Amanda’s Garden Consulting,Amanda Jarrett,garden website
The hood of the Jack-in-the-pulpit, covers the flower.
Arisaema triphyllum,Arisaema sikokianum,Arisaema tortuosum,Arisaema ringens,Jack-in-the-pulpit,cobra lily,Arum,woodland native plant,shade plant,May flowers,The Garden Website.com,Amanda’s Garden Consulting,Amanda Jarrett,garden website
The western Arisaema (A. triphyllum) spathe (hood) bears attractive stripes.
Arisaema triphyllum,Arisaema sikokianum,Arisaema tortuosum,Arisaema ringens,Jack-in-the-pulpit,cobra lily,Arum,woodland native plant,shade plant,May flowers,The Garden Website.com,Amanda’s Garden Consulting,Amanda Jarrett,garden website
Jack-in-the-pulpits bear leaves with 3 leaflets and a hooded flower.
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The 'jack' inside the pulpit is the actual 'inflorescence' that bears the actual flowers.
Arisaema triphyllum,Arisaema sikokianum,Arisaema tortuosum,Arisaema ringens,Jack-in-the-pulpit,cobra lily,Arum,woodland native plant,shade plant,May flowers,The Garden Website.com,Amanda’s Garden Consulting,Amanda Jarrett,garden website
Japanese cobra lilies bear pure white spathes that resemble the inside of a cobra's mouth.
Arisaema triphyllum,Arisaema sikokianum,Arisaema tortuosum,Arisaema ringens,Jack-in-the-pulpit,cobra lily,Arum,woodland native plant,shade plant,May flowers,The Garden Website.com,Amanda’s Garden Consulting,Amanda Jarrett,garden website
A colony of jack-in-the-pulpits enjoys moist rich soil and shade.
Arisaema triphyllum,Arisaema sikokianum,Arisaema tortuosum,Arisaema ringens,Jack-in-the-pulpit,cobra lily,Arum,woodland native plant,shade plant,May flowers,The Garden Website.com,Amanda’s Garden Consulting,Amanda Jarrett,garden website
The berries of A. triphyllum, jack-in-the-pulpit.
Arisaema triphyllum,Arisaema sikokianum,Arisaema tortuosum,Arisaema ringens,Jack-in-the-pulpit,cobra lily,Arum,woodland native plant,shade plant,May flowers,The Garden Website.com,Amanda’s Garden Consulting,Amanda Jarrett,garden website
The Japanese whipcord cobra lily, Arisaema tortuosum, 'whip' can grow to 2 feet.
​Common Name:  Jack-in-the-Pulpit
Botanical Name:  Arisaema
Form:    low upright
Family:  Arisaemateae
Genus:  Arisaema
Species:  numerous
Plant Type: tuberous herbaceous perennial
Mature Size:  from 1 to 2 feet depending on variety
Origin:  China, Japan, Africa, Mexico and North America.
Hardiness Zone: depends on species
Foliage:  green leaves are divided into 3 to 5 leaflets depending on the variety
Flowers: an erect central spadix (spike) surrounded by a spathe (bract)
Fruit: red berries
Exposure:  part shade to shade
Soil:  high organic, moist soils, dislikes clay and sand
Uses:  woodlands, natives
Propagation:   seed, offsets
​Problems:  no insects or diseases

Comments:  
Arisaemas always attract attention with their unique and beautiful flowers. These coveted beauties’ fame stretches from Asia to North America with over 190 species. Western species are referred to a jack-in-the-pulpit and Asiatic species are called cobra lilies.
 
Arisaemas are classified as arums; members of the Araceae family. All arums share the same flower morphology an erect central spadix (narrow spike of tiny flowers) surrounding by a spathe (a bract that resembles a hood).
 
Flowers emerge in April and May with green leaves that are divided into three or five leaflets.  There’s no main stalk as the flowers and foliage grow as a colony. As summer approaches, the plants wither and become dormant. Summer dormancy is normal and is part of their life cycle. The only remnants are the bright red berries that replace the hooded flowers.
 
Colonies spread readily, especially when disturbed so don’t forget they are there when you’re digging in the garden during the summer.
 
Provide arisaemas with conditions close to their native habitat – lowland woodlands with seasonal flooding. Soil should contain lots of organic matter and be moist, preferably with 3 inches of an organic mulch. Water in the summer as they dislike prolonged drought. They dislike full sun, so keep them in shady to partially shaded locations. Being from the forest, they are suited to being planted under larger plants that provide them with shade during the heat of the day. To improve hardiness, cover plants in fall with a thick layer of mulch. 
 
Three-leaf Jack-in-the-Pulpit, A. triphyllum, is the most common species of North America. Plants are 1' - 2' tall with two trifoliate leaves with inflorescences (flowers) that have green or purple and white stripes.  (Zone 3-9).
 
Japanese cobra lily: A. sikokianum, is a less hardy species from Japanese with hardiness zones from 5 to 8. Plants are bolder and taller growing from 18 inches to 2 feet, but prefer the same growing conditions as their western counterpart. The hood of the cobra is dark purple with stripes of green and white on the outside. Inside the hood is pure white. They are quite striking and are difficult to find. 

The whipcord cobra lily, Arisaema tortuosum, originates from the Himalayas. They have a distinctive purple or green whip-like projection that extends upright from the hood up to a foot in length.
Arisaema triphyllum,Arisaema sikokianum,Arisaema tortuosum,Arisaema ringens,Jack-in-the-pulpit,cobra lily,Arum,woodland native plant,shade plant,May flowers,The Garden Website.com,Amanda’s Garden Consulting,Amanda Jarrett,garden website
Japanese cobra lilies, A. sikokianum.
Arisaema triphyllum,Arisaema sikokianum,Arisaema tortuosum,Arisaema ringens,Jack-in-the-pulpit,cobra lily,Arum,woodland native plant,shade plant,May flowers,The Garden Website.com,Amanda’s Garden Consulting,Amanda Jarrett,garden website
A cupped-shaped Japanese cobra lily called A. ringens.

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  • Home
  • About, Services, Contact
  • Amanda's Garden Blog
  • Ask Amanda
  • Roses
    • Types of Roses
    • Easy Roses
    • Climbing Roses
    • Portland's Rose Test Garden
    • Rose Insects & Diseases
    • Pruning Roses
    • Rose Sawfly
    • Rose Bloom Balling
  • Pruning Basics 101
    • Pruning Tools
    • Winter Pruning
    • Pruning Grapes
    • Pruning Clematis
    • Prune Your Own Garden Registration
  • Lawn Basics
    • Lawn Reno, Seed & Sod
    • Lawn Maintenance Schedule
    • Spring Lawn Care
    • Moss in Lawns
    • Lawn Alternatives
    • Lawn Grub Control
  • Mulch & Mulching
    • Living Mulches - Groundcovers
  • Propagation
    • Growing Seeds Outdoors
    • Growing Seeds Indoors
    • Hardening Off Plants
    • Taking Cuttings
    • Seed & Plant Catalogues
  • How to Garden Topics
    • Fall Garden Chores
    • Planting Know-How
    • Soil Building
    • Soil pH
    • Watering Tips & Techniques
    • Drought Gardening
    • Sheet Mulching, Lasagna Gardening
    • Cover Crops
    • Composting
    • Compost Tea
    • Houseplant Winter Care
    • Hummingbirds in Winter
    • Winterize Your Garden
    • Ponds in Winter
  • Growing Food
    • Spring Veggie Gardening
    • Fall Veggie Garden Clean-up
    • Crop Rotation, Succession & Companion Planting
    • Harvesting
    • Growing Potatoes
    • Winter Veggie Gardening
    • Taming Tomatoes
    • Speeding up Tomato Harvest
    • Tomato Tips
    • Saving Tomato Seeds
    • Raspberries
    • Tomato Troubles
  • Plant Pests 1
    • Plant Pests Part 2 - Controlling Insects
    • Garden Inspections
    • Cloches
    • Helping Pollinators
    • Critters in the Garden
    • Black Sooty Mould
    • Brown Marmorated Stink Bug
    • Dogwood Anthracnose
    • Viburnum Leaf Beetle
    • Dormant Oil/Lime Sulfur
    • Japanese Beetles
    • Peony Blotch/Measles
    • Slugs & Snails
    • Horsetail, the Weed
    • June Beetle
    • Powdery Mildew
    • Soil Solarization
    • Rhododendron Leaf Spot
    • Plant Rusts
    • Black Knot
  • Container Growing
    • Choosing a Container
  • Feeding Plants 101
    • Fertilizers & Ratios
    • Nutritional Deficiencies & Toxicities
    • Organic Plant Food
  • Plant of the Month
    • Spring Flowering Bulbs
    • Colourful Fall Plants
    • Abelia
    • American Sweetgum
    • Ash (Fraxinus) Trees
    • Astilbes
    • Azaleas, Deciduous
    • Aubretia, Rock Cress
    • Aucuba, Japanese Spotted Laurel
    • Autumn Crocus
    • Bear's Breeches
    • Beautyberry, Callicarpa
    • Black-eyed Susans
    • Bleeding Heart, Lamprocapnos spectabilis
    • Calla Lilies
    • Catalpas
    • Chinese Windmill Palm
    • Columbine
    • Chrysanthemums
    • Crocuses
    • Dahlias
    • Dawn Redwood
    • Daylily
    • Delphiniums
    • Devil's Walking Stick, Aralia spinosa
    • Doghobble, Leucothoe
    • Dwarf Alberta Spruce
    • Dwarf Burning Bush
    • Elderberries, Sambucus
    • Evergreen Clematis
    • English Daisies
    • Fawn Lilies, Erythroniums
    • Fall Asters
    • Flowering Currants
    • Flowering Quince
    • Fritillaria
    • Garden Peonies
    • Garden Phlox
    • Ginkgo biloba
    • Grape-hyacinths
    • Handkerchief or Dove Tree
    • Hardy Fuchsia
    • Harry Lauder's Walking Stick
    • Heathers
    • Heavenly Bamboo
    • Hellebores, Lenten roses
    • Himalayan Sweet Box
    • Hydrangeas, Mophead & Lacecap
    • Jack-in-the-pulpit, Cobra Lily
    • Japanese Anemones
    • Japanese Forest Grass
    • Japanese Maples
    • Japanese Skimmia
    • Japanese spirea
    • Japanese Spurge
    • Kale, ornamental
    • Katsura Trees
    • Kousa Dogwood
    • Laurustinus viburnum
    • Lavenders
    • Lily-of-the-Valley Shrub, Pieris japonica
    • Mediterranean Spurge
    • Mexican Mock Orange
    • Montana Clematis
    • Mountain Ash
    • Oregon Grape Holly
    • Oriental Poppies
    • Oriental Lilies
    • Paperbark Maple
    • Pearl Bush
    • Persian Ironwood
    • Peruvian Lily, Alstroemeria
    • Phalaenopsis, Moth Orchids
    • Photinia, Fraser
    • Poinsettias
    • Primroses
    • Persian Silk Tree
    • Portuguese Laurel
    • Rose of Sharon
    • Saucer Magnolia
    • Shrubby Cinquefoil
    • Sneezeweed, Helenium
    • Snowberry
    • Snowdrops
    • Solomon's Seal
    • Star Magnolia
    • Strawberry Tree, Pacific Madrone
    • Stewartia
    • Torch Lily, Kniphofia uvaria
    • Tree Peonies
    • Tuberous Begonias
    • Variegated Wintercreeper
    • Viburnum, Pink Dawn Bodnant
    • Virginia Creeper
    • Weigela
    • Winterhazel, Corylopsis
    • Winter Camellia, C. sasanqua
    • Winter Daphne
    • Wintergreen, Gaultheria procumbens
    • Witch Hazel
    • Wood Anemones
    • Yews
  • Garden Tours & Such
    • NW Horticultural Society July Garden Tour 2024
    • Burnaby in Blooms
    • Burnaby's Century Gardens
    • South Delta Garden Club Tour 2023
    • Garden Club Events
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  • Need Help?
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