POEM™ Lilac Wallflower
Erysimum x 'Lilac'
- Stay Protected with Plant Sentry ™
POEM™ Lilac Wallflower - #1 Container 2 Pack is backordered and will ship as soon as it is back in stock.
Plant Sentry™
Plant Sentry™
Plant Sentry is designed to protect both consumers and the nursery trade from invasive plant pests and diseases. Sites that display the Plant Sentry protection badge are protected from consumers buying and nurseries shipping material carrying invasive pests and diseases.
This proprietary eCommerce software prevents the shipment of a restricted plant to each state. The Plant Sentry system includes a shipment certification program. The Plant Sentry Compliance Officer works closely with NatureHills.com and each nursery or fulfillment center to ensure only compliant plants are sold to customers.
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Delivery and Shipping
Delivery and Shipping
Shipping
To obtain a more accurate shipment time-frame, simply enter your zip code in the “Find Your Growing Zone” box to the right. Our plants are grown all over the country and lead time on items may be different because of this. Once your order is placed, you will also receive the specific shipment time-frame information as part of your order confirmation. Once an item ships, you will receive shipment notification and tracking numbers, so you can follow along while your plant travels to your doorstep. We use FedEx, UPS, or USPS at our discretion.
Due to winter weather we have put a hold on shipping to the areas shown below in grey. You can still order now and we will ship the plant to you during an appropriate time for your zone.
Standard Shipping Rates
At Nature Hills we handle, package and ship the products you order with the utmost care to ensure healthy delivery. Shipping and handling charges are calculated based on the tables below. Please note that some items include an additional handling surcharge, these will be noted on the item's product page.
From | To | S&H |
---|---|---|
$0 | $19.99 | $24.99 |
$20 | $49.99 | $29.99 |
$50 | $69.99 | $34.99 |
$70 | $99.99 | $39.99 |
$100 | $129.99 | $44.99 |
$130 | $149.99 | $48.99 |
$150 | $150+ | Approx 28% |
Click here to see our full rates
Understanding Plant Options
Nature Hills offers plants in two main formats:
- Container Plants: Grown in pots with soil, sized by container volume and plant age
- Bare Root Plants: Dormant plants without soil, sized by height measurements
Container Plant Sizes
Container sizes indicate plant age and growing capacity rather than liquid volume equivalents. Our containers follow industry-standard nursery "trade gallon" specifications, which differ from standard liquid gallon measurements.
Young Plants (6 months to 18 months old)
Container Size | Actual Volume | Metric Equivalent |
---|---|---|
2" x 2" x 3" | 0.18 - 0.21 dry quarts | 0.20 - 0.23 dry liters |
4" Container | 0.31 - 0.87 dry quarts | 0.35 - 0.96 dry liters |
4.5" Container | 0.65 dry quarts | 0.72 dry liters |
6" Container | 1.4 dry quarts | 1.59 dry liters |
1 Quart | 1 dry quart | 1.1 dry liters |
5.5" Container | 1.89 dry quarts | 2.08 dry liters |
Established Plants (18 months to 2.5 years old)
Container Size | Actual Volume | Metric Equivalent |
---|---|---|
2 Quart | 2 dry quarts | 2.2 dry liters |
#1 Container | 2.26 - 3.73 dry quarts | 2.49 - 4.11 dry liters |
5" x 5" x 12" | 3.5 - 4.3 dry quarts | 3.85 - 4.74 dry liters |
Mature Plants (2-4 years old)
Container Size | Actual Volume | Metric Equivalent |
---|---|---|
#2 Container | 1.19 - 1.76 dry gallons | 5.24 - 7.75 dry liters |
#3 Container | 2.15 - 2.76 dry gallons | 8.14 - 12.16 dry liters |
Large Plants (3-5 years old)
Container Size | Actual Volume | Metric Equivalent |
---|---|---|
#5 Container | 2.92 - 4.62 dry gallons | 12.86 - 20.35 dry liters |
#6 Container | 5.25 - 6.01 dry gallons | 23.12 - 26.42 dry liters |
#7 Container | 5.98 - 6.53 dry gallons | 26.34 - 28.76 dry liters |
Bare Root Plants
Bare root plants are sold by height from the root system to the top of the plant. Plants may exceed minimum height requirements.
Common Sizes:
- Trees: 1 foot, 2 feet, 3 feet, 4 feet, 5 feet, 6 feet
- Shrubs & Perennials: 1 foot, 18 inches, 2 feet
Important Notes
Container Volume Specifications
- Trade Gallon Standard: Our containers follow industry-standard "trade gallon" specifications established by the American National Standards Institute (ANSI Z60.1) for nursery stock
- Volume Variations: Actual soil volume may vary due to plant root systems and growing medium settlement
- Age Indicators: Container size primarily indicates plant age and maturity rather than liquid volume equivalents
Growing Conditions
- Plant size can vary based on variety and growing conditions
- Container size helps indicate plant maturity and establishment level
- Larger containers generally mean more established root systems and faster landscape establishment
Seasonal Availability
- Bare root plants are available seasonally when dormant
- Container plants are available throughout the growing season
- Specific varieties may have limited availability in certain sizes
Questions?
For questions about specific plant sizes or availability, please contact our plant experts who can help you choose the right size for your landscape needs.
Plant Highlights
POEM™ Lilac Wallflower highlights at a glance!
Specifications
Specifications
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Brand
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Botanical Name
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Growing Zones
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Mature Height
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Mature Spread
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Sun ExposureFull Sun
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Moisture
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Soil
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Growth RateMedium
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Pollinator Friendly
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Fragrant
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Pruning Time
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Bloom PeriodEarly Spring, Late Spring, Summer, Fall

Growing Zones 6-9
Long-lasting, deep violet-lilac purple blooms, POEM™ Lilac Wallflower (Erysimum x 'Lilac') are fragrant blooms that fill your spring and summer, and maybe even autumn with lush blossoms! Pollinators will stop by for a visit frequently because of the long bloom time and generous nectar!
The dark green foliage forms rounded mounds of about 16-18 inches tall and wide, forming tidy bundles of verdant greenery until frost or beyond in mild winters! Unlike some Wallflower, POEM™ is drought tolerant and loves the sun!
POEM™ Lilac is hardy USDA zones 6-9 and can handle hot sunny and dry sites. Once established these are Xeric perennials and both deer and rabbit resistant. Keep them deadheaded for reblooms until frost!
Planting and Application:
Lovely in cottage gardens and perennial borders, pollinator gardens and cut flower beds benefit bees and butterflies and your indoor vases and bouquets! For long-lasting color anywhere that won't take up much room, Wallflowers are ideal wildflowers that are neat and tidy enough for both front and back yard landscaping!
POEM™ Lilac Wallflowers are wonderfully sized for porch planters and patio containers, both as a specimen planting of vivid color or as a filler and color in mixed pots! Add to hot, dry beds and borders along sidewalks, pathways and roadside where the dry, hot sun won't bother them as much as it might other Wallflowers.
- Violet/Lilac Blossoms on Tall Stems
- Deep Green Leaves
- Rounded Mounds of Foliage
- Long-Lasting Blooms
- Pots, Planters, Beds & Borders
#ProPlantTips for Care:
Erysimum are very tolerant and adaptable, preferring full sun and part shade and well-drained soils best. Provide moderately moist, well-drained soil and mulch well to help keep the roots cool and hold moisture. Once established, POEM™ is Xeric and handles some drought! Cut back in early spring before they begin to grow in early spring and deadhead to encourage new blooms!
- Full Sun & Part Shade
- Well-Drained Moderately Moist to Dry Soil
- Deadhead After Bloom & Prune Mounds in Early Spring
- Annual in Cooler Zones, Perennial in Warmer Climates
- Rarely Damaged by Deer
POEM™ Lilac Wallflower is just the vivid long-lasting bloomer you need for your garden! Anything but shy, upgrade your garden perennials with NatureHills.com