Yes they are expensive. I have acquired a collection of them over the past 20 years. I have added to it little by little because they are so costly.
Mine are mostly grown in ground. I do not have great luck at saving the pot grown plants over. I am very successful in saving those that have been grown in the gardens. Here in Wisconsin I plant usually plant them out on April 15th. If a frost comes and there is growth, (not this year because we still have snow) I just place an upside down pot over the plant. I allow frost to take the plant down in the fall and then dig the tubers. I do dust them with a fungicide for storage. I divide the roots in the spring at planting time.
A bit pricey but quite easy for an abundance of flowers.
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~ Patti ~
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