The species and sizes listed are not always in stock. We cannot grow the plants fast enough to meet demand. Many times you can save money by purchasing plants smaller than blooming size. Periodically, we have multiple shoot plants available. To check availability, please phone or e-mail before ordering.
Phone: 218-247-0245; E-mail.
Horticultural Zone information is provided as an indication of winter hardiness and the winter temperatures necessary to vernalize the plants properly. A particular climate may have good winter conditions for a particular plant but still have summers that are too hot.
We sell only plants grown from laboratory-propagated
seedlings produced by Spangle
Creek Labs .
We take orders all year for fall and spring delivery.
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Cypripdieum candidum. The small white lady's-slipper is native to the plains of the midwestern U.S. This species needs a calcareous soil and a bit more sun than most Cyps. The plants should not be allowed to dry out during the summer. Zones 3-6.
is the natural hybrid of C. candidum and C. parviflorum var.
The flowers open yellow but turn white in a day or two. The hybrid
is taller and the flowers have darker tepals than
The plant is native to the prairies of the Midwest and enjoys bright sun
in early spring but needs light dappled shade during hot summer weather.
The plant likes moist, calcareous soil and benefits with the occasional
addition of horticultural lime to the planting mix to keep the pH slightly
above neutral. Zones 3-5 and northern Zone 6.
californicum. The California lady's-slipper is native to
northern California and a small area in southwestern Oregon. The
plant grows into large clumps with several flowers per stem, and
the flowers are quite fragrant. We have recently had excellent success
growing seedlings in a purely inorganic mix of 1 part Turface® MVP
to 2 parts perlite. When fertilized lightly with each watering, this
species grows quite rapidly. This plant likes fairly bright
conditions: 40-50% shade cloth. Zones 7-9, possibly also Zones 6
and even 5 with winter mulching.
Cypripedium Carol Ilene (C. pubescens X C. hotei). We don't grow many hybrids, but because this one is named for my mother, I can't resist. This plant grows rapidly in a mix with a high percentage of perlite. Zones 3-5, possibly 6.
Cypripedium guttatum. Also known as the "spotted lady's-slipper," this wonderful little plant grows up to a foot tall and sports flowers with purplish-red blotches. In suitable conditions the creeping nature of the rhizome results in a spreading of the plant almost like a ground cover. C. guttatum is native to Alaska and is widespread in Russia and other colder parts of Asia. Cold soil is a fundamental requirement for growing this plant. We recommend locating it on the north side of a building where there is no direct sun during the hot part of the day. Our plants thrive in beds with a mix of 1 part leaf mold to 2 parts sand. Zones 2-4, and the cooler parts of Zone 5 if grown in the shade.
The southern lady's-slipper is the largest-flowered of all the Cyps. Fortunately,
it is also one of the easiest to grow. The natural range of this
plant is from Kentucky south to Louisiana, but it can be grown successfully
outdoors as far north as Vermont, Wisconsin, and even northern Minnesota
if protected with heavy mulch in winter. This species likes a shady
site in the south but prefers increasingly open conditions northward.
In culture, C. kentuckiense thrives in a sandy mix. Zones
macranthum. This Asian species is quite variable in color
ranging from magenta through light pink. The plant in the photo has
parentage from the Lake Baikal region of Siberia, but we also have breeding
stock from the Russian Far East and Japan. Please enquire about the
provenance and color of the plants we currently have in stock. This
species requires a very freely draining mix with large particle size and
relatively little organic matter. We have been using a mix that is
mostly perlite. Zones 2-5.
parviflorum var. makasin. The northern
small-flowered yellow lady's-slipper. This is a relatively easy to
grow and very rewarding plant for a moist woodland garden. The plant
prefers high open shade but a little direct sun in early morning is welcomed.
Both the small- and large-flowered yellow lady's-slipper grow into large
clumps when cultivated under favorable conditions. Zones 2-6.
parviflorum var. pubescens.
Cyp. calceolus var. pubescens.) This is the
large-flowered yellow lady's-slipper. This plant is one of the easiest
of all the lady's-slippers to grow and thrives in woodland gardens with
open shade but tolerates early morning sun. This plant can withstand
cold northern winters even when there is little snow on the ground.
This is the best plant for people inexperienced in Cypripedium culture.
reginae. The queen's
or showy lady's-slipper. Large size, spectacular beauty, and relative ease
of culture combine to make this species one of the most desirable for moist
woodland gardens. The roots of this plant should never be allowed
to dry out, but the soil should not remain wet either. This species
must have a little direct sun in order to flower but enough shade during
the hot part of the day that the soil does not get too warm. Zones
2-5 and cooler parts of Zone 6.
Cypripedium reginae forma albolabium. White-flowered form of the showy lady's-slipper. These plants are identical to the normally colored form but have blooms with a pure white lip. There is no pink whatsoever. Forma albolabium seems just as vigorous and cold hardy as the normally colored plants. Zones 2-5 and cooler parts of Zone 6.
tibeticum. This species resembles Cyp. macranthos
but is even larger-flowered! A critical factor for growing
tibeticum is moisture; the plant must be kept moist all summer
but not allowed to be in any standing water or soggy soil in the
winter. Puddles from melting snow are lethal. Zones 3-5.
Winter mulching is advisable in Zones 3-4. The plant can be grown
in a climate with a winter as warm as Zone 8 provided summer summer temperatures
yatabeanum. Another plant from Alaska and colder parts of Asia
Cyp. guttatum but is much less colorful. The
plant in the photo is from Japan. Like Cyp. guttatum, Cyp.
yatabeanum requires cool growing conditions during the summer.
The north side of a building offers a good location. Cyp. yatabeanum
may be somewhat more tolerant of brief periods of high summer temperatures
as it is grown very successfully in Germany. Zones 2-5.
Possibly cooler parts of Zone 6.
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