10 Flowers that Start with “I”

Here's a small list of beautiful flowers that start with "I". Check them out and learn water needs, sun vs. shade preferences, soil pH, hardiness zones and more.

Below is our expansive gallery and directory featuring flowers that start with “I”.

A stunning bright-colored flower, the Ice Plant, which is an example of a flower whose first letter is “I” got its name from its characteristic appearance. The glossy red-purple foliage that resembles the Daisy in shape and stretches 2” diameter contains transparent flakes that look like pieces of ice. Its genus Delosperma cooperi also refers to the flower’s exposed seeds.

Related: 100s of Flowers from A-Z

Ice plant (Delosperma cooperi)

Common Name: Ice plant
Scientific Name: Delosperma cooperi
Type: Perennial
Water: Dry
Soil PH: 5.8 – 7.2
Flower Color: Glossy red-purple
Special Characteristics: Showy flowers
Hardiness Zone(s): 6 to 10
Height At Maturity: 3-6″
Sun: Full sun
Sub Type: Groundcover

Inch Plant (Tradescantia zebrina)

Common Name: Inch plant
Scientific Name: Tradescantia zebrina
Type: Perennial
Water: Medium
Soil PH: 6-8
Flower Color: Lavender-purple
Special Characteristics: Showy flowers, easy-to-grow, container
Hardiness Zone(s): 8-12
Height At Maturity: 6-9′
Sun: Full sun to part shade
Sub Type: Groundcover

Indian blanket (Gaillardia pulchella)

Common Name: Indian blanket
Scientific Name: Gaillardia pulchella
Type: Annual
Water: Dry to medium
Soil PH: 6.2 to 7.2
Flower Color: Red, Yellow, Bicolor
Special Characteristics: Attracts birds and butterflies, Tolerates drought, showy flowers, easy to grow
Hardiness Zone(s): 2 to 11
Height At Maturity: 12-18”
Sun: Full sun

Indian pink (Spigelia marilandica)

Common Name: Indian pink
Scientific Name: Spigelia marilandica
Type: Perennial
Water: Medium
Soil PH: 6-7
Flower Color: Red and yellow
Special Characteristics: Attracts hummingbirds, Cut flowers, Easy-to-grow
Hardiness Zone(s): 5 to 9
Height At Maturity: 12″-24″
Sun: Full Shade
Sub Type: Groundcover

Iris (Iris germanica)

Common Name: Iris
Scientific Name: Iris germanica
Type: Perennial
Water: Medium
Soil PH: 6.8 – 7.0
Flower Color: Purple falls with yellow beards and lilac standards
Special Characteristics: Deer-resistant, showy flowers, fragrant
Hardiness Zone(s): 3 to 10
Height At Maturity: 24-36″
Sun: Full sun
Sub Type: Groundcover

Iris (Iris graminea)

Common Name: Iris
Scientific Name: Iris graminea
Type: Perennial
Water: Medium
Soil PH: 8-10
Flower Color: Purple-violet
Special Characteristics: Deer-resistant, showy flowers, cut flowers, fragrant, easy to grow
Hardiness Zone(s): 5 to 8
Height At Maturity: 9-18″
Sun: Full sun to part shade
Sub Type: Groundcover

Iris (Iris maackii)

Common Name: Iris
Scientific Name: Iris maackii
Type: Perennial
Water: Medium
Soil PH: 4.8-5.2
Flower Color: Yellow
Special Characteristics: Deer-resistant, showy flowers, easy-to-grow
Hardiness Zone(s): 6 to 9
Height At Maturity: 24-30″
Sun: Full sun to part shade

Italian aster (Aster amellus “Veilchenkönigin” VIOLET QUEEN)

Common Name: Italian aster
Scientific Name: Aster amellus “Veilchenkönigin” VIOLET QUEEN
Type: Perennial
Water: Needs moderate moisture
Soil PH: 5.6 – 7.5
Flower Color: Deep violet-blue with a yellow center disk
Special Characteristics: Showy flowers, easy-to-grow
Hardiness Zone(s): 5 to 8
Height At Maturity: 12-24″
Sun: Full sun
Sub Type: Groundcover

Ivyleaf geranium (Pelargonium peltatum)

Common Name: Ivyleaf geranium
Scientific Name: Pelargonium peltatum
Type: Perennial
Water: Needs moderate moisture
Soil PH: 6-8
Flower Color: Pink, red, lilac, white
Special Characteristics: Showy flowers, container
Hardiness Zone(s): 10 to 11
Height At Maturity: 12-24″
Sun: Full sun to part shade
Sub Type: Groundcover