Northern Blue Flag Iris


Northern Blue Flag Iris

Iris versicolor 30-36" tall.

Northeastern native species carries gorgeous blue-violet flowers with bold purple veining and a white and lemon-yellow blaze. Tall slender blue-green arching lance-shaped leaves offer a strong vertical feature to the landscape.

Requires consistently moist soil and prefers 2-4" of shallow standing water. Plant 12–24" apart in full sun to part shade. Early bloom time. Z2. (bare-root crowns)

720 Northern Blue Flag
Item Discounted
L720A: 3 for $14.00
New catalog listings coming in early October
L720B: 6 for $24.25
New catalog listings coming in early October
L720C: 12 for $43.75
New catalog listings coming in early October
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Additional Information

Herbaceous Perennial Plants

When you receive your order, open the bags and check the stock. Roots and crowns should be firm and pliable. Generally, a little surface mold is harmless and will not affect the plant’s future performance. If they are slightly dry, add a little water or, if they are going to be planted or potted up soon, wet the roots. If you do not plant or pot them up immediately, store them in a cool (35–40°) location for a short time.

Do not plant bare-root perennial plant crowns directly outdoors before danger of frost has passed. Wet and/or cold conditions for an extended period may cause rotting.

Pot up rootstock using well-drained potting mix in a deep 6" pot or a 1-gallon container. Avoid coiling the roots in under-sized containers.
Grow newly potted perennials for a few weeks in a protected location in indirect light at 50–60°.
Transplant outside once they show some top growth and the danger of frost has passed.

For more info:
About planting bare-root perennials.