How to Grow Iris Edith Wolford

Iris Edith Wolford

Iris × germanica 'Edith Wolford'

flower

Edith Wolford is a stunning tall bearded iris cultivar featuring bicolor blooms with soft yellow standards and lavender-blue falls. This award-winning variety is prized for its elegant form, vibrant color contrast, and excellent garden performance. It grows on sturdy stems and produces large, ruffled flowers that are highly fragrant.

Growing Conditions

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Sun: Full sun, 6-8 hours daily minimum; afternoon shade beneficial in very hot climates

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Water: Moderate watering during growing season; reduce after blooming. Allow soil to dry between waterings. Excellent drainage is critical to prevent rhizome rot; avoid overwatering.

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Spacing: 18-24 inches

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Days to maturity: Bearded iris establish and bloom reliably within 1-2 years after planting

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Planting depth: Rhizome should be planted with top half exposed above soil surface

Soil

Type: Well-draining sandy loam or loamy soil

pH: 6.0-7.5

Amendments:

Coarse sand gravel perlite for drainage improvement compost in poor soils

Growing Zones

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Thrives in zones 3-9, with best performance in zones 4-8

3a 3b 4a 4b 5a 5b 6a 6b 7a 7b 8a 8b 9a

Growth Stages

Dormancy/Planting

Variable; planting through dormancy

Bare rhizomes or containerized divisions; plant in late July through September for fall rooting

Prepare well-draining bed with amended soil. Position rhizome horizontally with top half exposed. Water initially, then reduce frequency.

Spring Growth & Leafing

4-8 weeks

Foliage emerges in early spring as fan-like sword-shaped leaves, reaching full height before flowering

Water moderately as growth resumes. Apply balanced fertilizer as new growth appears. Remove winter mulch. Monitor for iris borers.

Bud Formation & Blooming

2-3 weeks

Flower stems elongate with multiple buds forming at the top. Blooms open sequentially, displaying yellow standards and lavender-blue falls with ruffled edges.

Water regularly but avoid wetting foliage. Provide stakes if needed for tall stems in windy locations. Deadhead spent flowers daily.

Post-Bloom & Seed Setting

4-6 weeks

Flowers fade and seed pods develop; foliage remains green and active for 4-6 weeks after bloom

Remove seed pods to redirect energy to rhizome. Continue moderate watering. Deadhead completely or remove entire stem at base.

Summer Dormancy Preparation

8-12 weeks

Foliage gradually yellows and dies back; rhizome enters late-summer dormancy period

Reduce watering significantly. Remove dead foliage once completely brown. Provide light feeding after bloom. Minimal maintenance required.

Companion Planting

Plan your garden →

Plant with:

Catmint Russian sage Salvia Alliums Daylilies Peonies Yarrow Coreopsis Lamb's ear Santolina

Avoid planting near:

Iris borers tend to attack dense iris plantings; space adequately Avoid heavy mulching directly over rhizomes Keep away from areas with poor drainage

Common Pests

Remove iris foliage in fall and destroy. Monitor rhizomes when lifting for division. Use Spinosad or neem oil sprays in early spring when foliage emerges.
Hand-pick beetles early morning; use Japanese beetle traps away from plants, or apply neem oil during peak activity.
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Remove debris and dense mulch. Handpick in early morning. Use copper barriers or iron phosphate baits.
Improve drainage immediately. Remove and discard affected rhizomes. Sterilize tools. Avoid overhead watering.
Ensure excellent drainage. Remove affected tissue and treat with fungicide. Prevent by avoiding poorly draining sites and excess moisture.

Uses

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Ornamental use in floral design

Culinary

While not edible, Edith Wolford's large fragrant blooms are prized for cut flower arrangements and wedding bouquets, adding elegance and color contrast to floral designs. [source]

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Historical iris root use

Medicinal

Iris rhizomes have been used historically in herbal medicine and perfumery; modern iris extract (orris root) retains fragrance and has been studied for antimicrobial properties, though not commonly used medicinally today. [source]

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Fragrance source

Household

Edith Wolford is notably fragrant; dried rhizomes (orris root) have traditionally been used as a fixative and scent in perfumery, potpourri, and household sachets. [source]

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Pollinator support

Wildlife

The large, prominent flowers attract bees and other pollinators, supporting early-season beneficial insect populations in the garden. [source]

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Garden specimen and landscape feature

Craft

Award-winning cultivar used as a focal point in perennial borders and cottage gardens; its elegant bicolor form and ruffled petals make it a prized specimen for ornamental gardening and display. [source]

This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.

Harvest Tips

Cut flowers for arrangements when first bud shows color; cut at base with a sharp knife in early morning. Flowers last 5-7 days in a vase. Deadhead spent blooms at the base of flower stalk to encourage secondary buds and prevent seed formation, which diverts energy from rhizome.

Fun Facts

🌱 Edith Wolford won the Dykes Medal in 1990, the highest honor given by the American Iris Society, recognizing it as one of the finest iris cultivars of its era.
🌱 Iris rhizomes are horizontal underground stems (not true bulbs) that grow at or near the soil surface, storing energy and producing new shoots; they can live and bloom for 30+ years with proper care.
🌱 The genus Iris is named after the Greek goddess of the rainbow due to the enormous range of flower colors; Edith Wolford's bicolor pattern showcases this diversity beautifully.

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