The Collaborative International Dictionary of English v.0.48:

kiss-me-over-the-garden-gate \kiss-me-over-the-garden-gate\ n.
   An annual (Polygonum orientale) with broadly ovate leaves
   and slender drooping spikes of crimson flowers; it is native
   to Southeastern Asia and Australia, and naturalized in North
   America.

   Syn: prince's-feather, prince's feather, princess feather,
        prince's-plume, Polygonum orientale.
        [WordNet 1.5]

WordNet (r) 3.0 (2006):

kiss-me-over-the-garden-gate
    n 1: annual with broadly ovate leaves and slender drooping
         spikes of crimson flowers; southeastern Asia and Australia;
         naturalized in North America [syn: prince's-feather,
         princess feather, kiss-me-over-the-garden-gate,
         prince's-plume, Polygonum orientale]