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Iris unguicularis
Iris unguicularis
Garden Diary

Date purchased or acquired:

Where acquired:

Location in the garden:


The next time you are buying perennials please look for our helpful labels and blue pots, and remember "The best perennials come out of the blue"!

Iris unguicularis

Algerian Winter Iris

USDA Zone: 8-9

Plant number: 1.289.320

(Formerly Iris stylosa) Totally unlike any other Iris species, this is a winter-flowering plant. Best suited to mild winter regions, such as the west coast or Gulf States. The grassy foliage forms an evergreen clump, with fragrant, soft lilac-blue flowers produced among the leaves from November through to March. Prefers a hot, sunny site on the dry side, particularly against a wall or house foundation where the extra protection will help to keep away untimely frosts. Resents being disturbed, so divide or move only when absolutely necessary, in late summer. CAUTION: Harmful if eaten.

Further details for
Iris unguicularis

Optimal Growing
Appearance and
Sun Exposure
  Full Sun
Soil Type
  Normal or
Soil pH
  Neutral or
  Alkaline or
Soil Moisture
Care Level
Flower Colour
  Light Blue
Blooming Time
  Late Fall
  Early Winter
  Mid Winter
  Late Winter
Foliage Color
  Deep Green
Plant Uses & Characteristics
  Accent: Good Texture/Form
  Alpine & Rock
  Cut Flower
  Deer Resistant
  Drought Tolerant
  Rabbit Resistant
   30-45 cm
   12-18 inches
   30-45 cm
   12-18 inches
Foot Traffic
Growth Rate
Disclaimer: This information is presented for reference only. This plant is not currently part of our Heritage Perennials lineup.