Growing and Propagating Lady's Slipper Orchids (Cypripedium)

A landowner has pink and yellow lady's slippers on their property and asks about soil, fertilizer, and propagation.

Pink lady's slipper (C. acaule): Very acidic soil (pH 4–5).
Yellow lady's slipper (C. parviflorum): More adaptable, near-neutral pH okay.
Both need woodsy, humus-rich, well-drained soil high in organic matter.
Pink tolerates drier sites.

Do not fertilize. They rely on mycorrhizal fungi for nutrients. Fertilizer harms the symbiosis.

By seed only, extremely difficult. Best left to nature or specialists. See William Cullina's work via New England Wild Flower Society.

These are often protected. Enjoy in situ; do not dig or disturb.

Wildflowers: Understanding Soil pH: What It Is, Ideal Levels, and How to Adjust It; Planting Knockout Roses in Clay Soil: Amend Heavily; Growing and Propagating Lady's Slipper Orchids (Cypripedium); Kalanchoe Sudden Collapse: Pot Size & Soil Fatalities; Rooting Pink Polka Dot Plant Cuttings: Use Fresh Soil, Not Reused; Maintaining Pink Hydrangea Flowers Through Soil pH Management; Alfalfa Mulch: The Secret to Weed-Free, Worm-Rich Garden Beds; Pink Shower Tree (Cassia javanica): A Tropical Cascade of Blossoms; Growing Hardy Lady's Slipper Orchids (Cypripedium): A Detailed Guide; Growing Spiranthes (Ladies' Tresses): Native Orchid for Moist Sites

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