This list covers 25 flowers, from “Iris” to “Innocence,” each starting with the letter I. They range from tall garden perennials and tropical shrubs to delicate wildflowers and trailing vines, grown for their color, fragrance, and hardiness. Gardeners plant many of them for borders, containers, and cut-flower arrangements, while others thrive wild in meadows, prairies, and rocky slopes.
Flowers are the reproductive structures of plants, often prized for their color, scent, and symbolic meaning as much as their biology. Many carry rich cultural histories, like the iris, named after the Greek goddess of the rainbow for its vivid, multicolored petals. Others, like the strawflower, have been dried and preserved for centuries to keep their beauty long after picking.
Below you’ll find the table with the flower name, scientific name, growing region, color, meaning, and description.
Flower: the common name you’ll recognize a flower by, making it easy to find the one you’re looking for.
Scientific Name: the Latin genus and species, useful if you want a precise, universally recognized identification.
Growing Region: where the flower grows naturally, helping you know if it will suit your climate or garden.
Color: the typical shades a flower’s blooms appear in, giving you a quick sense of its visual appeal.
Meaning: the symbolism traditionally linked to the flower, handy if you’re choosing one for a gift or occasion.
Description: a short overview of the flower’s appearance and character, giving you context beyond the basic facts.
Flowers
| Flower | Scientific Name | Growing Region | Color | Meaning |
|---|---|---|---|---|
| Iris | Iris spp. | Northern Hemisphere (Europe, Asia, North America) | Purple, blue, white, yellow | Faith, hope, wisdom |
| Impatiens | Impatiens walleriana | Tropical Africa, widely cultivated worldwide | Pink, red, orange, white, purple | Motherly love, impatience |
| Ixora | Ixora coccinea | Tropical Asia, India | Red, orange, yellow, pink | Passion, love |
| Iceland Poppy | Papaver nudicaule | Subarctic regions of Europe, Asia, North America | Orange, yellow, white, pink | Peace, rest, success |
| Ice Plant | Delosperma cooperi | South Africa | Pink, purple, magenta, yellow | Endurance, resilience |
| Indian Paintbrush | Castilleja spp. | Western North America | Red, orange, yellow | Sincerity, sacrifice |
| Indian Blanket | Gaillardia pulchella | Central and southern United States, Mexico | Red, orange, yellow | Warmth, gratitude |
| Inca Lily | Alstroemeria spp. | South America (Andes region) | Pink, orange, yellow, purple, white | Friendship, devotion |
| Impala Lily | Adenium multiflorum | Southern Africa | Pink, red, white | Beauty, resilience |
| Ironweed | Vernonia noveboracensis | Eastern United States | Purple | Strength, endurance |
| Indigo | Baptisia australis | Central and eastern United States | Blue, purple | Protection, transformation |
| Indian Pink | Spigelia marilandica | Southeastern United States | Red, yellow | Admiration, appreciation |
| Immortelle | Xerochrysum bracteatum | Australia | Yellow, orange, red, white, pink | Everlasting memory, eternal love |
| Ixia | Ixia spp. | South Africa | Red, pink, yellow, white, orange | Happiness, joy |
| Ismene | Hymenocallis narcissiflora | Peru, Andes region | White, yellow | Purity, unique beauty |
| Indian Hawthorn | Rhaphiolepis indica | Southern China, Southeast Asia | White, pink | Optimism, renewal |
| Indian Cress | Tropaeolum majus | South America | Orange, red, yellow | Victory, patriotism |
| Indian Shot | Canna indica | Tropical Americas | Red, orange, yellow | Passion, strength |
| Iberis | Iberis sempervirens | Southern Europe | White, pink, purple | Indifference, sweetness |
| Inula | Inula helenium | Europe, western Asia | Yellow | Healing, protection |
| Isotoma | Isotoma axillaris | Australia | Blue, purple, white | Delicacy, charm |
| Ivy Geranium | Pelargonium peltatum | South Africa | Pink, red, purple, white | Gentility, friendship |
| Illawarra Flame Tree | Brachychiton acerifolius | Eastern Australia | Red | Passion, vibrancy |
| Indian Mallow | Abutilon indicum | Tropical Asia, Africa, Australia | Yellow, orange | Persuasion, gentleness |
| Innocence | Houstonia caerulea | Eastern North America | Blue, white | Innocence, purity |
Descriptions
Iris
Named after the Greek goddess of the rainbow, irises are known for their striking, sword-shaped leaves and elegant three-petaled blooms in nearly every color imaginable.
Impatiens
A shade-loving garden favorite, impatiens produce continuous flushes of delicate flowers all summer, making them a go-to choice for brightening dark corners of the garden.
Ixora
Also called “flame of the woods,” Ixora forms dense clusters of small tubular flowers and thrives in warm, humid climates as a popular tropical landscaping shrub.
Iceland Poppy
Despite the name, this cold-hardy poppy is prized worldwide for its crepe-paper-like petals that flutter atop thin, wiry stems in cool climates.
Ice Plant
A tough, drought-tolerant succulent, the ice plant carpets rocky ground with vivid daisy-like blooms that seem to sparkle thanks to their glistening leaves.
Indian Paintbrush
Named for its brush-like clusters of brightly colored bracts, this wildflower often grows alongside prairie grasses and partly depends on nearby plant roots for nutrients.
Indian Blanket
This cheerful wildflower gets its name from its warm, banded petal pattern reminiscent of woven blankets, thriving in hot, dry prairie conditions.
Inca Lily
Also called Peruvian lily, this long-lasting cut flower features striking speckled petals and is a favorite in floral arrangements worldwide.
Impala Lily
A relative of the desert rose, the impala lily produces trumpet-shaped blooms on a swollen, water-storing stem, thriving in arid savanna landscapes.
Ironweed
True to its name, ironweed is a sturdy, tall perennial topped with clusters of vivid purple flowers that attract butterflies late into summer.
Indigo
Also called false indigo, this native perennial produces tall spikes of pea-like blue flowers and was historically used as a dye substitute for true indigo.
Indian Pink
Also known as pinkroot, this woodland perennial produces tubular red flowers that flare open to reveal bright yellow star-shaped throats, attracting hummingbirds.
Immortelle
Commonly called strawflower, immortelle has papery, straw-textured petals that keep their color and shape long after drying, making it popular in dried arrangements.
Ixia
Known as African corn lily, Ixia produces slender spikes of star-shaped flowers that open widely in bright sunlight and close on cloudy days.
Ismene
Also called Peruvian daffodil or spider lily, Ismene features fragrant, spidery white blooms with a distinctive trumpet-shaped center reminiscent of a daffodil.
Indian Hawthorn
A compact evergreen shrub, Indian hawthorn produces clusters of small, fragrant flowers in spring followed by dark blue berries, popular in landscaping.
Indian Cress
Better known as nasturtium, Indian cress produces bright, funnel-shaped edible flowers with a peppery flavor, often grown in vegetable and herb gardens.
Indian Shot
Named for its hard, round seeds once used as ammunition, this canna lily relative produces bold, showy blooms atop broad tropical foliage.
Iberis
Commonly known as candytuft, Iberis forms low, dense mats of tiny four-petaled flowers that create a snowy carpet effect in rock gardens.
Inula
Also called elecampane, Inula produces large, shaggy yellow daisy-like flowers and has a long history of use in traditional herbal remedies.
Isotoma
Known as blue star flower, Isotoma produces delicate star-shaped blooms on low, mounding plants that flower prolifically through summer.
Ivy Geranium
With trailing stems and glossy, ivy-shaped leaves, this geranium variety cascades beautifully from hanging baskets, producing clusters of colorful blooms.
Illawarra Flame Tree
This striking tree bursts into a blaze of bell-shaped red flowers, often blooming on completely bare branches for a dramatic seasonal display.
Indian Mallow
Also called country mallow, this flowering shrub produces delicate, bell-shaped blooms and has long been valued in traditional medicine.
Innocence
Commonly called bluet or Quaker ladies, this tiny wildflower carpets meadows and lawns with delicate four-petaled blooms in early spring.