Cypripedium x ventricosum is native to Russia, Korea and China. This orchid can be found in Russia from the Urals to eastern Siberia and the island of Sakhalin. Its occurrence extends further south to Korea and north-eastern China...
Cypripedium x ventricosum also called as The Inflated Cypripedium, Cypripedium x agnicapitatum, Cypripedium x barbeyi, Cypripedium x freynii, Cypripedium x kesselringii, Cypripedium x krylowii, Cypripedium macranthos subsp. ventricosum, Cypripedium macranthos var. ventricosum, Cypripedium x manchuricum, Cypripedium x manchuricum var. virescens, Cypripedium x morinanthum, Cypripedium x roseum, Cypripedium x sinapoides, Cypripedium x ventricosum f. bicolor, Cypripedium x ventricosum nothovar. virescens, is a natural hybrid between Cypripedium calceolus and Cypripedium macranthon. This species was described by Olof Swartz in 1800.
IDENTIFY CYPRIPEDIUM X VENTRICOSUM
Cypripedium x ventricosum is native to Russia, Korea and China. This orchid can be found in Russia from the Urals to eastern Siberia and the island of Sakhalin. Its occurrence extends further south to Korea and north-eastern China.
It is a small to medium sized, cold growing terrestrial orchid, which reaching 50 cm in height, with an erect, more or less pubescent, up to 50 cm long stem carrying 3 to 5, broadly elliptic to ovate-elliptic, sometimes sparsely puberulous on the veins, 13-20 cm long and 7-11 cm wide leaves.
The Inflated Cypripedium blooms in the spring on a usually 2 flowered inflorescence with leaf-like bracts. The flowers are 6 cm in diameter and have variable colors, ranging from dark pink-purple to pink, or white, or cream. The length of inner whorl flakes differs depending on the size of the lip, while the lip itself has a very variable size and shape. The elliptical to the ovate dorsal petal is concave, has a sharp tip and bends to form a kind of hood over the entrance to the baggy lip. Synsepal is smaller than the dorsolateral and has a bifurcated apex. The inner whorls are long-lanceolate, more or less twisted, they unfold at the base, but curve forward along their lengths, so that their pointed tips are directed forward on each side of the lip. The deep, baggy lip is ellipsoidal or somewhat spherical, and the edge of the hole usually has a lighter color than the rest of the lip.
CYPRIPEDIUM X VENTRICOSUM CARE AND CULTURE
Cultural information should only be used as a guide, and should be to be adapted to suit you. Your physical location; where you grow your plants, how much time you have to devote to their care, and many other factors, will need to be taken into account. Only then can you decide on the cultural methods that best suit you and your plants.
Light:
Cypripedium x ventricosum needs a light level of 30000-40000 lux. The light should be filtered or dispersed, and the plant should not be exposed to the midday sun. Strong air movement should be ensured all the time.
Temperature:
The average temperature of the summer day is 21-22 ° C, night 8-13 ° C, and the daily difference is 9-13 ° C. The average temperature of the winter day is -13 to -7 ° C, night -21 to -26 ° C, and the daily difference is 12-14 ° C. If we have a cool humidifier, plants grown in pots will grow well close to the outlet of cool, humid air.
Humidity:
In the summer and early autumn, The Inflated Cypripedium needs the humidity of 70-80%, and in winter and spring it drops to 50-60%.
Substrate, growing media and repotting:
Cypripedium x ventricosum are probably the easiest to grow in relatively large pots. The substrate recommended is made of 2 parts of clay garden soil, 2 parts of thick leaf mulch, 1 part of sand and 1 part of cut sphagnum. Such a substrate can be used for plants grown in pots and plants grown in the ground, e.g. in a rock garden. To ensure good drainage, the plants should be repotted every spring when new roots begin to grow.
Watering:
In the summer and early spring the rainfall is moderate, but their average drops quickly in mid-autumn, when the dry season comes, which lasts almost until the end of the next spring. The cultivated plants should be watered abundantly during growth, but when new growths end in the autumn, the amount of water should be reduced.
Fertilizer:
Weekly use 1/4-1/2 of the recommended dose of fertilizer for orchids. You can use sustainable fertilizer throughout the year, but can also use high-nitrogen fertilizer from spring to mid-summer, and then use high-phosphoric fertilizer until the end of autumn.
Rest period:
If Cypripedium x ventricosum are grown in the ground, a thick layer of isolation of fallen leaves and similar mulch should be provided in autumn. When grown in pots, the plants can never dry up completely, and the temperature should be kept around 5 ° C, but it can never fall below 0 ° C.
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