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I love the multiflorals, particularly sanderianum. I like dark flowers, particularly anitum. Marry the two and you have a match made in heaven — Paphiopedilum Yang-Ji Hawk. I got a great plant of it from Frank Cervera at the 2024 Paph Forum in Kensington, Maryland. Give me a year and if it's...

Cypripedium season has begun in the Mid-Atlantic (Baltimore, Maryland). For me the first one up every year is Cypripedium formosanum. Should be in bloom by mid-April. It has been reliable grower here for about 5 years, planted in a raised bed beneath arborvitae trees. Soil was amended with...

With the advent of seed-propagated Cypripedium subtropicum at a reasonable price from Hengduan Mountains Biotechnology, I have been able to try the species under several conditions and can report initial success under one set of conditions. I attempted last year with limited beginning success...

Cypripedium calceolus, the true Eurasian Yellow Ladyslipper and type species for all of Cypripedioideae, is a fussy grower in Maryland in my experience. Fortunately, its hybrid with Cypripedium pubescens, Cypripedium Otto (W.Frosch 1991) is much more tolerant and retains much of the charm of the...

I have been trying a large number of Cypripedium species and hybrids for the last 40 years and currently am keeping about 20 alive or better. The one standout is my Cypripedium pubescens (Willd. Hort. Berol. 1: 13 (1804)) 'Vigrous', planted as a single growth rhizome from a Michigan wildflower...

Another fine Cyp is Cypripedium Karl Heinz (calceolus x cordigerum), obtained as a single growth from Orchids at Post Hill at the 2019 Paph Forum. This should be a difficult entity, given that calceolus is notoriously fussy and cordigerum is a Himalayan high-mountain species. Instead, it has...

It's Cypripedium season in the Mid-Atlantic US, Maryland in this case. One of the most spectacular is Cypripedium Christian (shanxiense x hotei-atsumorianum), obtained as a single growth from Orchids at Post Hill at the 2019 Paph Forum. This should be a difficult entity, given that shanxiense is...

My name is Clark Thomas Riley, a Baltimore author and grower of Cypripediums since 1957.