Home / Guides / Plant Files / Orchidaceae

Orchid, Lady Slipper, Cypripedium Ulla Silkens

Cypripedium

Upload Image Print Article

Family

Orchidaceae (or-kid-AY-see-ee)

Info

Genus

Cypripedium (sip-rih-PEE-dee-um)

Info

Synonym

Height

Unknown - Tell us

Spacing

6-12 in. (15-30 cm)

12-18 in. (30-45 cm)

18-24 in. (45-60 cm)

Sun Exposure

18-24 in. (45-60 cm)

Danger

USDA Zone 5a: to -28.8 °C (-20 °F)

USDA Zone 5b: to -26.1 °C (-15 °F)

USDA Zone 6a: to -23.3 °C (-10 °F)

USDA Zone 6b: to -20.5 °C (-5 °F)

USDA Zone 7a: to -17.7 °C (0 °F)

USDA Zone 7b: to -14.9 °C (5 °F)

USDA Zone 8a: to -12.2 °C (10 °F)

USDA Zone 8b: to -9.4 °C (15 °F)

Hardiness

Bloom Color

Bloom Time

Foliage

Bloom Time

Bloom Color

Bloom Time

Class

Bloom Time

Bloom Color

Class

Bloom Color

Bloom Time

Other Details

Seed Collecting

Light Shade

Fruit Shape

Handling plant may cause skin irritation or allergic reaction

Fruit Size

Pink

White/Near White

Fruit Colors

Late Spring/Early Summer

Growing Habit

Herbaceous

Days to Maturity

Unknown - Tell us

Seed Type

By dividing rhizomes, tubers, corms or bulbs (including offsets)

Usage

Unknown - Tell us

Disease Resistance

N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed

Leaf Type

Unknown - Tell us

Foliage Color

Unknown - Tell us

Bloom Characteristics

Unknown - Tell us

Water Requirements

Perennials

Where to Grow

Unknown - Tell us

Other details

Unknown - Tell us

Propagation Methods

6.1 to 6.5 (mildly acidic)

6.6 to 7.5 (neutral)

7.6 to 7.8 (mildly alkaline)

Soil pH requirements

Unknown - Tell us

Patent Information

Unknown - Tell us

Plant Size (check one)

Growing Habit

Growth Rate

Leaf Shape

Leaf Appearance

Degree to which the appearance is present

Unknown - Tell us

Leaf Texture (top)

Unknown - Tell us

Leaf Texture (bottom)

Leaf Color

Color of Leaf Margin

Leaf Substance

Number of Vein Pairs

Appearance of Margin

Margin Width

Flower Shape

Flower Fragrance

Does it set seed?

Flower Size

Flower Type

Blooming Habit

Foliage Habit

Ploidy

Color Patterns

Awards (if applicable)

Unknown - Tell us

Gardener's Notes:

Post Comment

positive

neutral

negative

Sort By:

Post Comment

Sort By:

coriaceous

ROSLINDALE, MA | July 2016 | neutral

From Tony Avent's wonderful essay on growing hardy ladyslippers ...Read More

Popular Plants

SEE ALL

Featured

BUG FILES

Bogong Moth

(Agrotis infusa)

BIRD FILES

Lapland Bunting

(Calcarius lapponicus)

Featured

BUG FILES

Bogong Moth

(Agrotis infusa)

BIRD FILES

Lapland Bunting

(Calcarius lapponicus)

Orchid, Lady Slipper, Cypripedium Ulla Silkens

Cypripedium

Featured Videos

Gardener's Notes:

Get to Know Dave's Garden

Follow Dave's Garden