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Allium thunbergii 'Ozawa'

Japanese Flowering Onion

Plant Type:


Allium thunbergii ‘Ozawa’ – 'Ozawa' is the purple version of the Japanese Flowering Onion. October flowering in USDA zone 5b, it is fantastic with hardy mums, blue oat grass, Solidago ‘Golden Fleece’, white Colchicum and is especially striking with good old-fashioned Coreopsis verticillata ‘Moonbeam’. Plant Allium thunbergii ‘Ozawa’ in fertile, draining soil sited in sun.

From Karen B. (NJ) on 11.15.2014 Hi, Wayne at Quackin Grass Nursery! I received the gorgeous Allium thunbergii "Ozawa" yesterday, and plan to plant it today.  It arrived in great shape - you guys have the packing art down pat!
Many thanks!  I will totally enjoy it!



8 in




3 to 8(9?)
What is my hardiness zone?

Characteristics and Attributes for Allium thunbergii 'Ozawa'

Season of Interest (Flowering)

  • Autumn

Nature Attraction

  • Butterflies
  • Deer Resistant
  • Honey Bees & Native Bees


  • Full Sun


  • Border
  • Trough
  • Rock Garden
  • Natural Garden

Growth Rate in the Garden

  • Medium


  • Fertile
  • Draining
  • Adaptable
  • Average


  • China

Propagated By

  • Offset

Genus Overview: Allium

The Ornamental Onions are a large group with many garden-worthy species. We’ve selected some that have performed well for us. Most require full to nearly full sun in most any average garden soil. The addition of lime is helpful in acid soils. All our Alliums are offered as pot-grown flowering-sized bulbs from our stock plants.