| Add to Export List | Image | Common Name | Scientific Name | Cultivar/Variety | Plant Type |
|---|---|---|---|---|---|
| Add To List Remove From List | Ice Carnival Daylily | Hemerocallis | 'Ice Carnival' | Hardy perennial | |
| Add To List Remove From List | Icicle Spike Speedwell | Veronica spicata | 'Icicle' | Hardy perennial | |
| Add To List Remove From List | Icicles Licorice Plant | Helichrysum thianschanicum | 'Icicles' | Annual | |
| Add To List Remove From List | Illustris Elephant Ear | Colocasia esculenta | 'Illustris' | Tender bulb | |
| Add To List Remove From List | Immortality Tall Bearded Iris | Iris germanica | 'Immorality' | Hardy perennial | |
| Add To List Remove From List | Imperial® Honey locust | Gleditsia triacanthos var. inermis | 'Impcole' | Deciduous tree | |
| Add To List Remove From List | Indian Love Call Daylily | Hemerocallis | 'Indian Love Call' | Hardy perennial | |
| Add To List Remove From List | Indian Magic Crabapple | Malus | 'Indian Magic' | Deciduous tree | |
| Add To List Remove From List | Indian Summer Crabapple | Malus | 'Indian Summer' | Deciduous tree | |
| Add To List Remove From List | Indian Summer Rudbeckia | Rudbeckia | 'Indian Summer' | Hardy perennial | |
| Add To List Remove From List | Ingwersen's Variety Geranium | Geranium macrorrhizum | 'Ingwersen' | Hardy perennial | |
| Add To List Remove From List | Inniswood Hosta | Hosta | 'Inniswood' | Hardy perennial | |
| Add To List Remove From List | Interrupted Fern | Osmunda claytoniana | Fern, Hardy perennial | ||
| Add To List Remove From List | Irish Moss | Sagina subulata | Hardy perennial | ||
| Add To List Remove From List | Iron Butterfly Foamflower | Tiarella | 'Iron Butterfly' | Hardy perennial | |
| Add To List Remove From List | Ironweed | Vernonia noveboracensis | Hardy perennial | ||
| Add To List Remove From List | Ironweed | Vernonia fasciculata | Hardy perennial | ||
| Add To List Remove From List | Ironwood | Ostrya virginiana | Deciduous tree | ||
| Add To List Remove From List | Isanti Redosier Dogwood | Cornus sericea | 'Isanti' | Deciduous shrub | |
| Add To List Remove From List | Island Dancer Garden Jubilee® | Rosa | 'BAIcer' | Deciduous shrub | |
| Add To List Remove From List | Issai Hardy Kiwi | Actinidia arguta | 'Issai' | Vine | |
| Add To List Remove From List | Ivory Halo® Dogwood | Cornus alba | 'Bailhalo' | Deciduous shrub | |
| Add To List Remove From List | Ivory Silk® Japanese tree Lilac | Syringa reticulata | 'Ivory Silk' | Deciduous tree | |
| Add To List Remove From List | Ivy Geraniums | Pelargonium peltatum | Annual | ||
| Add To List Remove From List | Jack Frost Siberian Bugloss | Brunnera macrophylla | 'Jack Frost' | Hardy perennial | |
| Add To List Remove From List | Jack Pine | Pinus banksiana | Evergreen tree | ||
| Add To List Remove From List | Jack-in-the-Pulpit | Arisaema triphyllum | Hardy perennial | ||
| Add To List Remove From List | Jackmanii Clematis | Clematis | 'Jackmanii' | Vine | |
| Add To List Remove From List | Jackmann Potentilla | Potentilla fruticosa | 'Jackmannii' | Deciduous shrub | |
| Add To List Remove From List | Jacob Kline Bee Balm | Monarda didyma | 'Jacob Kline' | Hardy perennial | |
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