This list includes 25 Flowers that start with I, from “Iberis” to “Ixora”. These species range from garden favorites to wildflowers used in bouquets, borders, and habitat plantings.
Flowers that start with I are showy flowering plants commonly grown for gardens, floristry, or wildflower lists. For example, the iris has long symbolic ties in art and heraldry across Europe.
Below you’ll find the table with scientific name, colors, locations and season.
Scientific name: The binomial name helps you identify the exact species and find more botanical details or regional records.
Colors: Lists the main flower colors so you can match palettes for gardens, bouquets, or identification in the field.
Locations: Shows native ranges and common naturalized regions to help you choose climate-appropriate plants or note wild habitats.
Season: Gives typical flowering months or seasons, noting differences between hemispheres to plan planting and observation.
Flowers that start with I
| Common name | Scientific name | Flower colors | Locations (native + naturalized) | Description |
|---|---|---|---|---|
| Iris | Iris sp. | purple, blue, yellow | Northern Hemisphere (Europe, Asia, N. America); cultivated worldwide | Showy, sword‑leaf perennials with many species; blooms mainly spring–early summer (Mar–Jun N). Popular in borders and floristry for large, colourful standards. |
| Impatiens | Impatiens walleriana | pink, red, white | East Africa; naturalized and widely cultivated worldwide | Shade‑loving bedding plant with succulent stems and explosive seedpods; blooms summer–fall (Jun–Oct N). Valued for continuous color in shady spots. |
| Ice plant | Delosperma cooperi | magenta, pink, purple | South Africa; cultivated in Mediterranean climates and North America | Succulent groundcover with daisy‑like blooms; blooms spring–summer (Apr–Jul N). Drought‑tolerant, good for rock gardens and slopes. |
| Indian paintbrush | Castilleja sp. | red, orange, yellow | North America (western USA, Canada) | Wildflower with brightly colored bracts; blooms spring–summer (Apr–Jul N). Hemiparasitic on grasses, striking in meadows. |
| Indian blanket | Gaillardia pulchella | red, yellow, orange | North America (USA, Mexico); naturalized in South America, Australia | Heat‑tolerant wildflower with bi‑colored petals; blooms summer–fall (Jun–Sep N). Excellent for dry, sunny borders. |
| Indian pink | Spigelia marilandica | red, yellow | Eastern USA | Woodland perennial with tubular red flowers; blooms late spring–summer (May–Jul N). Attracts hummingbirds and makes a bold shade border specimen. |
| Indian hawthorn | Rhaphiolepis indica | white, pink | China, SE Asia; cultivated and naturalized in Mediterranean and parts of USA (California, Florida) | Evergreen shrub with clusters of fragrant flowers; blooms spring (Mar–Apr N). Common in hedges and coastal landscapes. |
| Indian shot | Canna indica | red, orange, yellow | Tropical Americas; naturalized in tropical regions worldwide | Bold foliage and lily‑like flowers; blooms summer–fall (Jun–Oct N). Grown for dramatic tropical beds and cut flowers. |
| Indian cress | Tropaeolum majus | orange, red, yellow | South America (Peru, Bolivia); naturalized and cultivated worldwide | Edible, peppery flowers on trailing stems; blooms summer (Jun–Aug N). Popular in salads and as ornamental trailing plants. |
| Ixia | Ixia sp. | yellow, orange, pink | South Africa; cultivated worldwide | Star‑shaped flowers on wiry stems; blooms spring (Sep–Nov S; Apr–Jun N). Often used in cut arrangements and spring displays. |
| Ixora | Ixora coccinea | red, pink, orange | Tropical Asia; naturalized across tropical regions worldwide | Evergreen shrub with dense flower clusters; blooms year‑round in tropics, peaks spring–summer (Mar–Aug N). Widely used in hedges and tropical gardens. |
| Ismene | Ismene sp. | white, yellow | Andes (Peru); cultivated worldwide | Large fragrant trumpet‑like bulbs (Peruvian daffodil); blooms spring (Sep–Nov S; Mar–May N). Striking, long‑lasting cut flowers. |
| Ivy geranium | Pelargonium peltatum | pink, red, white | South Africa; cultivated worldwide | Trailing geranium group for hanging baskets and window boxes; blooms spring–fall (Apr–Oct N). Glossy leaves and abundant clusters of flowers. |
| Ivy‑leaved toadflax | Cymbalaria muralis | purple, pink, white | Mediterranean Europe; naturalized in N. America, UK | Delicate trailing wildflower for walls and rockeries; blooms spring–summer (Apr–Jul N). Small snapdragon‑like flowers on creeping stems. |
| Iceberg rose | Rosa ‘Iceberg’ | white, pale pink | Cultivar originally from Germany; cultivated worldwide | Prolific floribunda rose with repeat blooms; blooms spring–fall (May–Oct N). Valued for reliability and disease resistance in gardens and floristry. |
| Italian arum | Arum italicum | white, greenish | Mediterranean Europe; naturalized in British Isles, N. America | Shade‑tolerant tuberous plant with showy spathes; blooms spring (Mar–May N). Noted for attractive variegated foliage and red berries. |
| Italian aster | Aster amellus | purple, pink, white | Southern Europe (Italy); cultivated worldwide | Compact perennial with daisy‑like flowers; blooms late summer–fall (Aug–Oct N). Good for borders and pollinator beds. |
| Isotoma | Isotoma fluviatilis | blue, white, purple | Australia; cultivated worldwide as groundcover | Low, mat‑forming perennial with star‑shaped flowers; blooms spring–summer (Sep–Dec S; May–Jul N). Excellent between stepping stones and in rock gardens. |
| Indigo | Indigofera tinctoria | pink, purple | Indian subcontinent and Asia; cultivated in tropics | Shrubby legume with pea‑type flowers used historically for dye; blooms summer (Jun–Aug N). Noted for producing indigo dye. |
| Iochroma | Iochroma cyaneum | purple, blue, red | Andes (South America); cultivated in warm gardens worldwide | Tubular, pendulous flowers attractive to hummingbirds; blooms summer–fall (Jun–Oct N). Shrubby, grown in containers or sheltered borders. |
| Iberis | Iberis sempervirens | white, pink | Mediterranean Europe; cultivated worldwide | Evergreen perennial groundcover (candytuft) with corymbs of small flowers; blooms spring (Apr–May N). Common in rockeries and edging. |
| Indian fig | Opuntia ficus‑indica | yellow, orange | Mexico (native); naturalized in Mediterranean, Africa, Australia | Cactus with large showy summer flowers and edible fruit; blooms summer (Jun–Aug N). Grown for fruit, fencing and xeriscapes. |
| Incarvillea | Incarvillea delavayi | pink, red | China; cultivated in temperate gardens worldwide | Clump‑forming perennial with trumpet‑shaped flowers; blooms late spring–early summer (May–Jun N). Resembles gloxinia but hardy in cooler climates. |
| Indian strawberry | Duchesnea indica | yellow | Asia; naturalized in North America, Europe | Low groundcover with five‑petaled yellow flowers and strawberry‑like fruit; blooms spring–summer (Apr–Jul N). Often used as a lawn alternative or groundcover. |
| Indian tobacco | Lobelia inflata | blue, white | Eastern North America | Erect annual with tubular blue flowers; blooms summer (Jun–Aug N). Historically used medicinally and occasionally grown in native plantings. |
Descriptions
Iris
Impatiens
Ice plant
Indian paintbrush
Indian blanket
Indian pink
Indian hawthorn
Indian shot
Indian cress
Ixia
Ixora
Ismene
Ivy geranium
Ivy‑leaved toadflax
Iceberg rose
Italian arum
Italian aster
Isotoma
Indigo
Iochroma
Iberis
Indian fig
Incarvillea
Indian strawberry
Indian tobacco
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