11 Inspirational Flowers That Start with I + Growing Guide Charts

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Brock Ingham
Brock Ingham

Inimitable flowering arrangements intrigue and inspire. Installed with intention, each floral item is impressive in inclination. I imagine individual items incandescent with an infatuating image of indolence and indulgence. In addition, it’s increasingly imperative to include improvements that invite important insects. If they investigate, they’re inspired to ingest nectar and pollen inside.

Indian Blanket Flower
Indian Blanket Flower

I’m invigilating an international inscription of my most idolized flowers, in alphabetical order. Letter ‘I’ is the inspiration inside!


1. Iris (Iris x germanica)

Iris
Iris

Elegant iris is a classic flowering bulb, with tall stalks topped with frothy, triple-lobed flowers in purple, white, and gold. In ideal conditions, the fragrant flowers can reach a whopping three feet tall, and they’re as popular as a cut flower as they are a garden bloom.

It’s considered the likely parent for many of the glamorous iris hybrids available on the consumer market, with varieties that bloom in black, blue cream, and burgundy.

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    Botanical Name:Iris x germanica
    Growth Rate:Fast
    Native Range:Mediterranean
    Hardiness Zones:3 to 10
    Dangers:Mildly poisonous, can cause dermatitis
    Soil Needs:Organically rich, well-draining loam or sandy soils
    Exposure:Full sun to partial shade
    Ease of Care:Moderate
    Diseases:Prone to bulb rot if drainage needs are not met, fungal disease, crown rot, mosaic virus
    Propagation:Seed, division
    Fertilizer:Fertilize annually with balanced slow-release granules
    Pests:Iris borer
    Blooming Period:Summer
    Pruning:Deadhead to promote vigor
    Water needs:Low to moderate; drought tolerant
    Iris

    2. Ice plant (Delosperma cooperi)

    Ice plant
    Ice plant

    Also known as pigface, the ice plant is a sweet, low-growing succulent with cheerful magenta blossoms. They flower profusely the second the weather warms, and will keep it upright to winter. 

    With a high tolerance for low fertility, sandy soil, and a love of dry conditions, ice plant makes a great low-maintenance ground cover and thrives in arid parts of rock gardens and walkways. They’ll do equally as well in containers or hanging baskets.

    Botanical Name:Delosperma cooperi
    Growth Rate:Slow
    Native Range:South Africa
    Hardiness Zones:6 to 10
    Dangers:May become invasive, plant with care
    Soil Needs:Sandy or rocky well-draining soils
    Exposure:Full sun to partial shade
    Ease of Care:Easy
    Diseases:Prone to rot if conditions are too wet
    Propagation:Cutting, seed, division
    Fertilizer:Do not fertilize
    Pests:Some risk of aphids or mealybugs
    Blooming Period:Spring to fall
    Pruning:Prune to limit the spread
    Water needs:Low
    Ice plant

    3. Indian Blanket (Gaillardia pulchella)

    Indian Blanket
    Indian Blanket Flower

    Bright and cheery, the Indian blanket is a comely wildflower with round, radiant flowers. I’m quite fond of their other common name, firewheel, which thoroughly captures their blazing glory.

    They’re a long blooming plant, ideal for pollinator gardens or wildflower beds, and will provide much-needed food and shelter for friendly bugs and butterflies. Seed heads also provide vital winter food for foraging songbirds, so consider letting the flowers run to seed.

    Botanical Name:Gaillardia pulchella
    Growth Rate:Fast
    Native Range:South-central United States and northern Mexico
    Hardiness Zones:5a to 9b
    Dangers:None recorded
    Soil Needs:Dry, sandy soils
    Exposure:Full sun to light shade
    Ease of Care:Easy
    Diseases:Disease resistant
    Propagation:Seed
    Fertilizer:Not required
    Pests:Some risk of aphids or thrips
    Blooming Period:Spring to fall
    Pruning:Deadhead to limit self-seeding
    Water needs:Low
    Indian Blanket Flower

    4. Indian paintbrush (Castilleja coccinea.)

    Indian Paintbrush
    Indian Paintbrush

    Hummingbird lovers will delight in the visitors a stand of Indian paintbrush brings to your garden. These American natives court the little birds with tall clusters of scarlet blooms, tubular in shape and rich in nectar.

    They’re a clever opportunist, with the ability to steal food from neighboring plants. They prefer sagebrush or grasses, so be sure to plant an unwitting friend to help your Indian paintbrush to thrive.

    Botanical Name:Castilleja coccinea
    Growth Rate:Moderate
    Native Range:Canada and eastern North America
    Hardiness Zones:4 to 8
    Dangers:None recorded
    Soil Needs:Tolerates most soils but prefers loam
    Exposure:Full sun
    Ease of Care:Moderate
    Diseases:Disease resistant
    Propagation:Seed
    Fertilizer:Do not fertilize
    Pests:Pest resistant
    Blooming Period:Late spring to summer
    Pruning:Not required
    Water needs:Moderate
    Indian Paintbrush

    5. Impatiens (Impatiens capensis)

    Impatiens
    Impatiens

    Impatiens are to my mind an underrated jewel. They’re an easy-going American native, with low demands and high rewards. They grow magnificently in wet, almost boggy areas and in disturbed, poor-quality soils, where they produce gorgeous scatterings of golden flowers.

    The sweet cup-shaped blooms are highly sought after by hummingbirds, bees, and, butterflies, drawing their fluttering majesty into even the least appealing parts of the garden. Who can ask for more than that?

    Botanical Name:Impatiens capensis
    Growth Rate:Fast
    Native Range:North America
    Hardiness Zones:2a to 11b
    Dangers:Prune to maintain the spread
    Soil Needs:Moist, organically rich soils especially clay
    Exposure:Partial to full shade
    Ease of Care:Moderate
    Diseases:Disease res
    Propagation:Seed, division
    Fertilizer:Not required
    Pests:Pest resistant
    Blooming Period:Summer to fall
    Pruning:Prune to maintain spread
    Water needs:High
    Impatiens

    6. Indian pink (Spigelia marilandica)

    Indian Pink
    Indian Pink

    If you want to do your part of environmental conservation, planting Indian pink is a good step. It’s a threatened American wildflower known for long, tubular red and pink flowers that open with a golden star-shaped spread of petals.

    With a flower like that, it’s no surprise that hummingbirds in particular love them and will make as many pit stops among their blossoms as they can.

    Botanical Name:Spigelia marilandica
    Growth Rate:Moderate
    Native Range:Southeastern United States
    Hardiness Zones:5 to 9
    Dangers:Mildly poisonous
    Soil Needs: Moist, organically rich soils
    Exposure:Partial to full shade
    Ease of Care:Easy
    Diseases:Disease resistant
    Propagation:Seed
    Fertilizer:Not required
    Pests:Pest resistant
    Blooming Period:Summer
    Pruning:Deadhead as desired
    Water needs:Moderate
    Indian Pink

    7. Ione Heckler (Oxalis laciniata x enneaphylla)

    Ione Heckler
    Ione Heckler

    The Ione Heckler oxalis cultivar brings together some of the best traits of its parent plants. Its blooms are the charming purple cups of the O. laciniata, dainty and sweet, appearing in dense profusion.

    In contrast, the leaves are frilly and divided, deep blue and purple at the base similar to the O. enneaphylla. It’s easier than both to care for, thriving in low-fertility soils and damp, low-light areas of the garden.

    Botanical Name:Oxalis laciniata x enneaphylla
    Growth Rate:Fast
    Native Range:Hybrid
    Hardiness Zones:5 to 7
    Dangers:None recorded
    Soil Needs:Sandy or rocky free-draining soils
    Exposure:Full sun to partial shade
    Ease of Care:Easy
    Diseases:Prone to leaf spot if drainage needs are not met
    Propagation:Division
    Fertilizer:Fertilize monthly during the growing season with balanced liquid fertilizer
    Pests:Some risk of aphids and mealybugs
    Blooming Period:Late spring to summer
    Pruning:Deadhead as desired
    Water needs:Low to moderate
    Ione Heckler

    8. Indian hyacinth (Camassia spp.)

    Indian Hyacinth
    Indian Hyacinth

    A meadow of vivid violet Indian hyacinth is a captivating sight, each spire of blooms carrying up to a hundred vibrant star-shaped flowers. It’s a North American native, beloved both by nectar-eating insects and native people through the plants range.

    Its bulbs are a traditional food and can be either roasted like an onion or boiled down into a syrupy treat that’s just as sweet as the flowers themselves. Once established they require little maintenance and will pop up cheerfully year after year.

    Botanical Name:Camassia spp.
    Growth Rate:Fast
    Native Range:Eastern Canada and United States
    Hardiness Zones:4a to 8b
    Dangers:None recorded
    Soil Needs: Well-draining, organically rich soils of most types
    Exposure:Full sun to partial shade
    Ease of Care:Moderate
    Diseases:Disease resistant
    Propagation:Seed, division
    Fertilizer:Eastern Canada and the United States
    Pests:Pest resistant
    Blooming Period:Spring
    Pruning:Deadhead as desired
    Water needs:Moderate
    Indian Hyacinth

    9. Indian aster (Symphyotrichum novae-angliae)

    Indian aster
    Indian Aster

    The pleasing contrast between the sunny yellow heart and the bright purple petals of the Indian aster brings consistent cheer to the garden. They’re vigorous growers, able to reach two meters tall with ease, and produce hundreds of flowers each season.

    They also play host to a bewildering variety of native butterflies from April to November, so don’t be surprised if its fall flowers look a bit nibbled by the time winter rolls around. It’s also valuable to native bees and birds.

    Botanical Name:Symphyotrichum novae-angliae
    Growth Rate:Fast
    Native Range:Eastern North America
    Hardiness Zones:4a to 8b
    Dangers:Somewhat flammable
    Soil Needs:Prune to maintain airflow and shape, deadhead to prevent self seeding
    Exposure:Full sun to partial shade
    Ease of Care:Moderate
    Diseases:Prone to fungal disease if airflow is poor
    Propagation:Seed, cuttings
    Fertilizer:Fertilize annually with balanced slow-release granules
    Pests:Caterpillars
    Blooming Period:Late summer to fall
    Pruning:Prune to maintain airflow and shape, deadhead to prevent self-seeding
    Water needs:Moderate
    Indian aster

    10. Irish moss (Sagina subulata)

    Irish moss
    Irish moss

    The flowers of Irish moss are pinhead small, white or yellow, scattered like tiny jewels across the soft fuzz of the leaves. While it’s possible given the right conditions to see flowers on garden moss, grown carefully between stones or in shady glens, I’ve always been a fan of moss terrariums.

    It brings these tiny treasures up to the eye, and protects them from heavy feet and rough weather.

    Botanical Name:Sagina subulata
    Growth Rate:Moderate
    Native Range:Western and Central Europe
    Hardiness Zones:4 to 8
    Dangers:None recorded
    Soil Needs: Sandy or clay soils with good drainage
    Exposure:Full sun to deep shade
    Ease of Care:Easy
    Diseases:Disease resistant
    Propagation:Division, seed
    Fertilizer:Fertilize annually with balanced slow-release granules
    Pests:Low risk of slugs
    Blooming Period:Spring to summer
    Pruning:Not required
    Water needs:High
    Irish moss

    11. Indigo Plant (Indigofera tinctoria)\

    Indigo Plant
    Indigo Plant

    The Indigo plant is a long-cultivated cash crop, with records showing it has been grown across the tropics since at least 4000 BC. Compounds in its leaves produce a distinctive dye, most widely known today as the shade used to turn denim blue.

    The flowers, however, are a soft powdery pink or violet and grow in spires hidden behind elegant falls of rich blue-green leaves.

    Botanical Name:Indigofera tinctoria
    Growth Rate:Fast
    Native Range:Tropics of Africa, Asia, Mexico, and South America
    Hardiness Zones:10 to 12
    Dangers:None recorded
    Soil Needs:Moist, organically rich soil of most types
    Exposure:Full sun
    Ease of Care:Moderate
    Diseases:Disease resistant
    Propagation:Seed, cutting
    Fertilizer:Not required
    Pests:Pest resistant
    Blooming Period:Summer
    Pruning:Prune to maintain size and shape
    Water needs:Moderate
    Indigo Plant

    Final thoughts

    Starting the process of incorporating flowering plants letter by letter can be daunting. However, with creativity and determination, even those lacking experience can create amazing gardens that are full of inspiration beyond words.

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