Wild Blue Iris – Iris missouriensis Also known as Rocky Mountain Iris, Wild Blue Flag, and Western Blue Flag, this... Read more
$10.99
Also known as Rocky Mountain Iris, Wild Blue Flag, and Western Blue Flag, this graceful native perennial brings sweeping waves of violet-blue blooms to meadows, borders, and naturalized gardens. Growing 12–24 inches tall, it thrives in moist, sunny spots and returns faithfully year after year.
Season: Perennial
USDA Zones: 2 – 9
Height: 12 – 24 inches
Bloom Season: Spring and Summer
Bloom Color: Blue / Violet
Environment: Full Sun
Soil Type: Moist, well-drained, pH 6.1 – 7.8
Temperature: 64 – 72°F
Average Germination Time: 14 – 28 days
Light Required: Yes
Sowing Depth: 1/8 – 1/4 inch
Sowing Rate: 1 – 2 seeds per plant
Moisture: Keep seeds moist until germination
Plant Spacing: 6 – 12 inches
Sow seeds in moist peat moss in starter flats in late winter. To speed germination, snip off the pointed tip of each seed with nail clippers. Cover seeds 1/8 – 1/4 inch deep and keep continuously moist. Transplant outdoors after the last frost and protect during the first growing season.
Quantity: 25 Wild Blue Iris Seeds
Is Wild Blue Iris easy to grow from seed?
Yes, with a little patience. Snipping the pointed tip of each seed before sowing significantly speeds up germination, which typically takes 14–28 days under the right conditions.
When should I plant Wild Blue Iris seeds?
Sow indoors in late winter in moist peat moss. Transplant seedlings outdoors after the last frost, keeping them protected during their first growing season.
What growing conditions does Wild Blue Iris prefer?
It thrives in full sun with moist, well-drained soil (pH 6.1–7.8). It is extremely cold-hardy and grows well in USDA zones 2–9.
How tall does Wild Blue Iris grow?
Typically 12–24 inches tall, including the foliage and flower stalk. In rich, moist meadow conditions it can reach the taller end of that range.
Will Wild Blue Iris come back every year?
Yes — it is a true perennial. Once established, it will return and spread naturally each spring and summer.
