9/23/2023 0 Comments Colchicum plantAll parts of the plant, but especially the bulb, are poisonous.Colchicum is a genus of about 45 species of plants from alpine and subalpine meadows and hillsides in Europe, North Africa, West and Central Asia, North India and West China. Symptoms include cramping, bloody vomiting, diarrhea, increased blood pressure, respiratory failure, shock, multi-organ damage, bone marrow suppression. Poisonous to Humans: Poison Severity: High Poison Symptoms: Highly toxic and can be fatal if ingested.Landscape: Landscape Location: Container Houseplants Lawn Meadow Woodland Landscape Theme: Rock Garden Design Feature: Border Foundation Planting Mass Planting Attracts: Bees Butterflies Resistance To Challenges: Drought Rabbits Problems: Poisonous to Humans Problem for Cats Problem for Dogs Problem for Horses.Foliage gradually yellows and dies by early summer when the plants go dormant. Leaves: Leaf Color: Green Leaf Arrangement: Rosulate Leaf Shape: Lanceolate Hairs Present: No Leaf Length: > 6 inches Leaf Description: Five to eight dark green leaves to 10 inches long emerge in spring.Fall flowers have no foliage, hence the additional common name of naked ladies. Each stem bears a star-shaped, lavender-pink to lilac-pink flower. Flowers: Flower Color: Pink Purple/Lavender White Flower Inflorescence: Solitary Flower Value To Gardener: Good Cut Showy Flower Bloom Time: Fall Flower Shape: Star Tubular Flower Petals: 6 petals/rays Flower Description: Flower stems emerge from the ground to 6 to 10 inches tall in late summer to early fall.Cultural Conditions: Light: Full sun (6 or more hours of direct sunlight a day) Partial Shade (Direct sunlight only part of the day, 2-6 hours) Soil Texture: Clay Loam (Silt) Sand Soil pH: Acid (8.0) Neutral (6.0-8.0) Soil Drainage: Good Drainage Moist NC Region: Coastal Mountains Piedmont USDA Plant Hardiness Zone: 4a, 4b, 5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b, 9a, 9b.Whole Plant Traits: Plant Type: Bulb Poisonous Habit/Form: Erect Growth Rate: Medium Maintenance: Medium.Particularly Resistant To (Insects/Diseases/Other Problems): drought, rabbit, and deer Edibility: Highly toxic and can be fatal if ingested. Wildlife Value: Noted for attracting wildlife. Introduced into Kentucky, North Carolina, New Hampshire, Oregon, and Vermont. Life Cycle: Bulb Perennial Recommended Propagation Strategy: Division Seed Country Or Region Of Origin: Central and Southeastern Europe Distribution: Britain, Denmark south to Spain, east to Macedonia. Attributes: Genus: Colchicum Species: autumnale Family: Colchicaceae Uses (Ethnobotany): Despite its poisonous reputation, it is sometimes used in the treatment of gout.Tags: #showy flowers #poisonous #drought tolerant #border planting #problem for cats #problem for dogs #problem for horses See this plant in the following landscape: Cultivars / Varieties: Poisonous and poses a particular threat to cats. The plants seem to be immune to damage from rabbits.ĭiseases, Insect Pests, and Other Plant Problems: When grown from seed, the seedlings take 4 to 5 years to reach flowering size. The Autumn crocus is also easily grown in grass and can be naturalized there, among shrubs, and by woodland edges. The plant can be divided every other year for a quick increase. Pot up the smaller bulbs and grow them on in a cold frame for a year before planting them out. Larger bulbs can be planted out direct into their permanent positions. Divide the bulbs in June or July when the leaves have died down. Autumn crocus are typically planted from corms, which should be planted about 2 3/4 to 4 inches (7 - 10cm) deep. Plants are hardy to about -4 degrees F (-20☌) and the dormant bulbs are fairly hardy and will withstand soil temperatures down to at least 23 degrees F (-5☌). It will tolerate partial shade and summer drought, but not dry soils. Native to southern Europe, Autumn Crocus can be found in meadows and damp woodland clearings on calcareous and neutral soils.Īutumn crocus prefers a rich, well-drained loam in a sunny position with a PH in the range of 4.5 to 7.5. The flowers are very attractive to bees and butterflies. See below DescriptionĬolchicum autumnale, or Autumn Crocus, is a perennial herb with basal, slender leaves long, tubular, 6 parted, purple-pink to white flowers that blossom in autumn (hence the common name). Phonetic Spelling KOHL-chik-um aw-tum-NAH-lay This plant has high severity poison characteristics.
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