Fls 3 per stem, 65mm wide; perianth segments 27mm long, broadly oblong in outline, rounded at apex, very slightly mucronate, ivory white, spreading, plane to a little twisted, with margins slightly incurved, smooth and of heavy substance, overlapping one-third; the inner segments narrower, ovate; corona 15mm long, cup-shaped, angled, pastel orange, with white at rim, becoming white late into maturity, mouth straight, broadly ribbed, wavy, with rim crenate. Sweetly scented.

Named for a historic house and garden in Jackson, Mississippi.