Plant It Tampa Bay
Blue Flag Iris
Blue Flag Iris (blue flag)
The beautiful irises of South Florida include African, walking, blue flag, and one called blackberry lily. These striking plants make great accents for their foliage alone, but all have exquisite flowers as well.
The unique way that most plants of this type flower is to send up a shoot that looks just like a leaf. Then a bud appears on the side near the top, opening into a delicate and colorful blossom.
The classic upright foliage fans out and complements other textures and plant growth patterns. Some have wider leaves, others are more narrow.
- Space plants 30 in. plus apart
- Grows well in moist soil
- Flowers throughout spring
- Reaches standard mature height of 3 ft.
- Moderate disease and insect resistance
- Perennial, wet soil tolerant and clumping habit
- Grows in full sun to partial shade
- Ideal for water garden
- Low-maintenance once established
- Water 3 times to 4 times per week for the first growing season
- Winter hardy from USDA zones 8b to 11
- Not guaranteed to be in bloom on arrival
Easy To Grow
Great For Mass Plantings
Good For Containers
Full to Part sun
3 to 6 hours morning sun best
Warm, tropical vibes of 65-90°F
Grown indoors as a houseplant but can be grown outdoors in USDA Hardiness Zones 5-11
Height : 2.5' - 3'
Wide: Up To 18"
Growth Rate: Slow
Plant Spacing: 30" apart
Pet Friendly - No
- Around a landscape boulder
- Accent for a mixed bed
- Along a porch or deck
- Surrounding a palm
- Front of the border (African and Blue Flag)
- Lining a walk
- Foundation plant
- Around a tree trunk
- By the mailbox or lamppost
Add top soil or organic peat moss to the hole when you plant. Because this plant does best with plenty of water, you may want to add water-retention crystals when planting, especially if other plants nearby like it more dry.
Trimming is usually necessary to remove any browned leaves and spent flower stems. Cut these as close to the ground as you can.
Avoid a complete cutting back of the plant, however.
You can also deadhead if you like, especially with the walking variety to limit its spread.
Water is very important - they need a regular drink and don't mind "wet feet" occasionally.
Fertilize 3 times a year - in spring, summer, and fall - with a good quality granular fertilizer. You might like to supplement feedings with bone meal and/or liquid fertilizer for year-round bloomers like African and blackberry iris.