IBERIS sempervirens
(eye-BEER-iss) (sem-per-VI-renz) | IBERSE3 |
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| Common Name: Candytuft |
| Description: RHS Award of Garden Merit. Spreading, evergreen plants completely covered with pure white flowers in spring. |
| Zone: 5 |
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IBERIS sempervirens
(eye-BEER-iss) (sem-per-VI-renz) | IBERSE1 |
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| Common Name: Candytuft |
| Description: RHS Award of Garden Merit. Spreading, evergreen plants completely covered with pure white flowers in spring. |
| Zone: 5 |
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IBERIS sempervirens 'Autumn Beauty'
(eye-BEER-iss) (sem-per-VI-renz) | IBERAB3 |
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| Common Name: Candytuft |
| Description: Superior evergreen variety; blooms spring and fall. Fine for rock garden or ground cover. |
| Zone: 5 |
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IBERIS sempervirens 'Autumn Snow'
(eye-BEER-iss) (sem-per-VI-renz) | IBERAS3 |
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| Common Name: Candytuft |
| Description: Profusion of larger, white flowers in spring and fall. |
| Zone: 5 |
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IBERIS sempervirens 'Weisser Zwerg'
(eye-BEER-iss) (sem-per-VI-renz) | IBERWZ3 |
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| Common Name: Candytuft |
| Description: Masses of small, white flowers in spring cover bushy, tight mounds of foliage; deep green, needle-like leaves. |
| Zone: 5 |
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IPOMOPSIS aggregata
(eye-poe-MOP-sis) (ag-GRE-gat-a) | IPOMAG3 |
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| Common Name: Scarlet Rocket, Gilia |
| Description: Showy spikes of intense red, tubular flowers in July and August; biennial. Old-fashioned favorite. |
| Zone: 5 |
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IPOMOPSIS aggregata
(eye-poe-MOP-sis) (ag-GRE-gat-a) | IPOMAG1 |
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| Common Name: Scarlet Rocket, Gilia |
| Description: Showy spikes of intense red, tubular flowers in July and August; biennial. Old-fashioned favorite. |
| Zone: 5 |
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IRIS cristata
(EYE-riss) (kris-TAH-ta) | IRISCR3 |
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| Common Name: Dwarf Crested Iris |
| Description: RHS Award of Garden Merit. Native. Usually blue flowered; shade tolerant. |
| Zone: 3 |
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IRIS ensata 'Variegata'
(EYE-riss) (EN-sa-ta) | IRISEV5 |
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| Common Name: Variegated Japanese Iris |
| Description: RHS Award of Garden Merit. Striking, variegated foliage with dark purple flowers. |
| Zone: 5 |
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IRIS pallida 'Aurea Variegata'
(EYE-riss) (PAL-ih-duh) | IRISAV8 |
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| Common Name: Flag, Fleur-De-Lis |
| Description: There is nomenclature confusion in this species! This has distinctly more yellow variegation and is more vigorous than 'Variegata'. Lovely, fragrant, lavender flowers. |
| Zone: 4 |
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IRIS pallida 'Variegata'
(EYE-riss) (PAL-ih-duh) | IRISPV8 |
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| Common Name: Variegated Orris Root |
| Description: Fragrant, lavender-blue flowers; handsome leaves variegated with creamy-white and gray-green. |
| Zone: 4 |
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IRIS pseudacorus
(EYE-riss) (soo-DAY-kor-us) | IRISPS5 |
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| Common Name: Water Iris, Yellow Flag |
| Description: RHS Award of Garden Merit. Tall, 5', yellow flowers in summer. Cattail-sized clumps for poolside planting or border. |
| Zone: 5 |
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IRIS setosa subsp. canadensis
(EYE-riss) (say-TO-sa) | IRISCA3 |
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| Common Name: Flag, Fleur-De-Lis |
| Description: Lovely dwarf with purple flowers accented with rich, dark veins; summer flowering. Prefers moist soil. Native in Northeastern U.S. and Eastern Canada. |
| Zone: 4 |
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IRIS sibirica
(EYE-riss) (si-BEER-ih-ka) | IRISSI3 |
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| Common Name: Siberian Iris |
| Description: RHS Award of Garden Merit. Good cut, beardless blues and purples. Good vertical lines for landscaping. |
| Zone: 4 |
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IRIS sibirica 'Butter & Sugar'
(EYE-riss) (si-BEER-ih-ka) | IRISBS5 |
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| Common Name: Flag, Fleur-Des-Lis |
| Description: RHS Award of Garden Merit. A rebloomer with creamy standards and butter-yellow falls. |
| Zone: 4 |
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IRIS sibirica 'Caesar's Brother'
(EYE-riss) (si-BEER-ih-ka) | IRISCB5 |
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| Common Name: Flag, Fluer-De-Lis |
| Description: Rich, deep blue variety. |
| Zone: 4 |
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IRIS sibirica 'Welcome Return'
(EYE-riss) (si-BEER-ih-ka) | IRISWR5 |
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| Common Name: Flag, Fleur-De-Lis |
| Description: Velvety purple-blue flowers on reliable rebloomer. |
| Zone: 4 |
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IRIS spuria 'Fontanelle'
(EYE-riss) (SPUR-ee-ah) | IRISSF5 |
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| Common Name: Flag, Fleur-De-Lis |
| Description: Found years ago at an old farmstead. An unsurpassed, neat garden plant with elegant, large flowers of violet-blue, whose lavender-rose falls each bear a bright yellow spot. Flowers first two weeks of June. Wonderful, sword-like foliage. |
| Zone: 4 |
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IRIS versicolor
(EYE-riss) (VER-sih-kuh-lor) | IRISVE3 |
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| Common Name: Blue Flag |
| Description: Native, wild iris. Blue blooms from June-July. |
| Zone: 3 |
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