Plants
- Quamash, CamassiaCamassia leichtlinii
- Queen Emma Crinum LilyCrinum augustum 'Queen Emma'
- Queen of the PrairiesFilipendula rubra
- Queen PalmSyagrus romanzoffiana
- Quercus IlexQuercus Ilex
- Quercus serrataQuercus serrata
- Quince 'Aromatnaya'Cydonia oblonga 'Aromatnaya'
- Quince 'Vranja'Cydonia oblonga 'Vranja'