Photo by Melody

PlantFiles: Orange Siberian Globeflower
Trollius ircuticus

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Family: Ranunculaceae (ra-nun-kew-LAY-see-ee) (Info)
Genus: Trollius (TROLL-ee-us) (Info)
Species: ircuticus

9 members have or want this plant for trade.

Category:
Perennials

Height:
18-24 in. (45-60 cm)

Spacing:
Unknown - Tell us

Hardiness:
USDA Zone 3a: to -39.9 C (-40 F)
USDA Zone 3b: to -37.2 C (-35 F)
USDA Zone 4a: to -34.4 C (-30 F)
USDA Zone 4b: to -31.6 C (-25 F)
USDA Zone 5a: to -28.8 C (-20 F)
USDA Zone 5b: to -26.1 C (-15 F)
USDA Zone 6a: to -23.3 C (-10 F)
USDA Zone 6b: to -20.5 C (-5 F)
USDA Zone 7a: to -17.7 C (0 F)
USDA Zone 7b: to -14.9 C (5 F)
USDA Zone 8a: to -12.2 C (10 F)
USDA Zone 8b: to -9.4 C (15 F)

Sun Exposure:
Sun to Partial Shade

Danger:
Unknown - Tell us

Bloom Color:
Orange

Bloom Time:
Mid Summer
Late Summer/Early Fall

Foliage:
Unknown - Tell us

Other details:
Requires consistently moist soil; do not let dry out between waterings

Soil pH requirements:
5.6 to 6.0 (acidic)

Patent Information:
Unknown - Tell us

Propagation Methods:
By dividing the rootball
From seed; direct sow outdoors in fall

Seed Collecting:
Bag seedheads to capture ripening seed
Collect seedhead/pod when flowers fade; allow to dry
Allow pods to dry on plant; break open to collect seeds
Allow seedheads to dry on plants; remove and collect seeds

Click thumbnail
to view:

By turektaylor
Thumbnail #1 of Trollius ircuticus by turektaylor

Profile:

1 positive
No neutrals
No negatives

Gardeners' Notes:

RatingAuthorContent
Positive akcrafter On May 17, 2009, akcrafter from Philadelphia, PA wrote:

I grew this plant in Anchorage, Alaska for more than a decade. I liked that it bloomed a bit later than the yellows. The plants reproduce enthusiastically by dropping seeds in the fall, so cut the seed heads off after blooming or your ground might be blanketed with plantlets. It liked acid soil and moisture, but in our northern clime didn't seem to care if it was planted in sun or shade. I even had them make it through 20 below sitting unprotected in a pot when I dug some up and then forgot to replant them before snows arrived. Nothing seems to kill them! They seemed to like the same conditions as most ligularia, Asiatic lilies, lungwort, ferns, spirea and yarrow. I am now trying to find some to try here in Philadelphia.

Regional...

This plant has been said to grow in the following regions:

Anchorage, Alaska
Mount Hood Parkdale, Oregon



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