Robert Swanson Oriental Trumpet Lily

Oriental Trumpet Lily Robert Swanson (Bulb), Lilium Robert Swanson View Larger Image

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.

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Zones 3 - 8
Easy to grow
Fragrant Flower / Foliage
Good for Cut Flowers
Light Requirements
Full Sun
Full Sun
Half Sun / Half Shade
Half Sun / Half Shade
Bulb Spacing4 bulbs per sq. ft.
Bloom Time Mid to late summer
Shipping Buy now and we'll ship your order during the ideal planting time for your region. Orders with this item will begin shipping the week of Feb. 29 and continue through mid-June. Expected ship week will display at checkout after you enter your zip code. More shipping info. Learn More…
Size Bag of 3 - Bulb Size: 16-18 cm


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.

Common Name Robert Swanson Oriental Trumpet Lily
Botanical Name Lilium Robert Swanson
Zones 3, 4, 5, 6, 7, 8
Ships As Bulb, Rhizome, Tuber
Light Requirements Full Sun, Half Sun / Half Shade
Flower Color Orange, Yellow
Mature Height 36-44" tall
Bulb Size 16-18 cm
Bulb Spacing 4 bulbs per sq. ft.
Planting Depth Plant 6-8" deep
Bloom Time Mid to late summer
Planting Time Spring / Summer
Soil Type Average Soil
Soil Moisture Average, Well Draining
Advantages 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.
Ideal Region Midwest, West, Pacific Northwest
Ships to Hawaii, Alaska & Canada No

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.


Plant Shipping: Buy now and we will ship your order at the ideal planting time for your region. Expected ship week will display on the cart at checkout after you enter your zip code. Spring-Planted Perennial and Bulb orders will ship from Feb 25 through mid-June, warmest zones first.

Most plant and bulb orders arrive within 2-6 days, or less, of leaving our greenhouses in Colorado. This prompt delivery is provided without additional express charges.

Grass Plugs Will ship at planting time in spring, beginning in late February.

Wildflower Seed & Grass Seed Orders ship within 2-3 days.

Standard shipping costs are $4.99 and up, depending on the size of the order.

Make Fast Even Faster: For ‘Rush’ same week delivery, please call customer service at 800-925-9387.

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Suggested Companion Plants:

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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