Robert Swanson Oriental Trumpet Lily

Oriental Trumpet Lily ‘Robert Swanson’ is one of our favorite Oriental Lilies, with its big striking red blooms (up to 7"), edged in a buttery yellow. Its light-green stigmas add another layer of contrast for a mid to late summer show that’s perfect in your perennial plant bed. Long-lasting and sweetly fragrant, the flowers (up to 40 per bulb!) make lovely cut flowers as well as pollinator friendly additions to the garden.

Zones 3 - 8
Easy to Grow
Fragrant Flower / Foliage
Good for Cut Flowers
Light Requirements
Full Sun
Half Sun / Half Shade
Mature Plant Size 36-44" tall
Bulb Spacing 4 bulbs per sq. ft.
Bloom Time Mid to late summer
Shipping Shipping begins the week of February 25th, 2019 Learn More…
Size Bag of 3
SKU HC008718

USDA Hardiness Planting Zones

To determine if a plant is sufficiently cold hardy, the USDA created numbered zones indicating winter low temperatures; the lower the zone number the colder the winter.

  • If the coldest winter temperature expected in your area is -15°F (zone 5) then any plants rated zones 3-5 will survive the winter temperatures in your area.
  • If you live in very warm winter areas (zones 9-11) plants with zones 3-4 ratings are not recommended. The lack of freezing winter temperatures do not provide a time for winter dormancy (rest).

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Per Bag of 3
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36-44" tall. Oriental Trumpet Lily ‘Robert Swanson’ has eye-popping color and sweet fragrance. Its brilliant red flowers are gently recurved, edged in a buttery yellow and contrasted by the lime-green stigmas. This hardy lily with copious amounts of big 7-inch blooms is a perfect choice for easy-care, mid-to late summer color. Plant in well-drained compost enriched soil in a full to part sun location. ‘Robert Swanson’ likes to have its feet in the shade but blooms in the sun. It does not have a big footprint so it’s perfect for planting in your perennial beds. Growing 36-44 inches tall, each bulb may yield up to 40 blooms! ‘Robert Swanson’ Lilies make wonderful cut flowers. Consider roses, Agastache and late summer Salvia as companions. Cold hardy in zones 3-8.

More Information
Common Name
Robert Swanson Oriental Trumpet Lily
Botanical Name
Lilium Robert Swanson
Item Package Size
Bag of 3
3, 4, 5, 6, 7, 8
Flower Color
Light Requirements
Full Sun, Half Sun / Half Shade
Bloom Time
Mid - Late Summer
Bloom Time
Mid to late summer
36 inches
Mature Height
36-44" tall
Bulb Spacing
4 bulbs per sq. ft.
Flower Bulb Size
16-18 cm
Planting Depth
Plant 6-8" deep
Soil Type
Average Soil
Soil Moisture
Average, Well Draining
Ideal Region
Midwest, West, Pacific Northwest
Easy to Grow, Fragrant Flower / Foliage, Good for Cut Flowers
Additional Information
Lilies like their feet in the shade and faces in the sun so keep them happy by planting behind or amongst other perennials for a dramatic effect.
Ships As
Bulb, Rhizome, Tuber
Planting Time
Spring / Summer
Ships To Canada
Planting Guides
View more Planting Guides, or download our complete Planting Guide for tips on caring for your plants when you receive your order, as well as planting instructions for Perennials, Spring-Planted Bulbs, Fall-Planted Bulbs, Cacti & Succulents, Xeric Plants and more.
ZoneShipping Status
Zone 2Shipping begins the week of May 20th, 2019
Zone 3Shipping begins the week of May 20th, 2019
Zone 4Shipping begins the week of May 20th, 2019
Zone 5Shipping begins the week of April 29th, 2019
Zone 6Shipping begins the week of April 15th, 2019
Zone 7Shipping begins the week of March 25th, 2019
Zone 8Shipping begins the week of March 4th, 2019
Zone 9Shipping begins the week of February 25th, 2019
Zone 10Shipping begins the week of February 25th, 2019
Q & A

Suggested Companion Plants: