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 Green Thumb Nursery - 319-393-5946 - Cedar Rapids, Iowa
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shrub

Thryallis*

Galphimia glauca

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Thryallis (Galphimia glauca) at Peck's Green Thumb Nursery

Thryallis flowers

Thryallis flowers

(Photo courtesy of NetPS Plant Finder)

Thryallis (Galphimia glauca) at Peck's Green Thumb Nursery

Thryallis foliage

Thryallis foliage

(Photo courtesy of NetPS Plant Finder)

Thryallis (Galphimia glauca) at Peck's Green Thumb Nursery

Thryallis

Thryallis

(Photo courtesy of NetPS Plant Finder)

* This is a "special order" plant - contact store for details

Height:  6 feet

Spread:  6 feet

Sunlight:  full sun  partial shade 

Hardiness Zone:  8

Other Names:  Golden Thryallis, Rain of Gold, Shower of Gold

Description:

This variety is great for foundation plantings, or shearing into low hedges; showy yellow flower clusters in fall, or sporadically all year in warmer areas; shiny light green leaves take on bronzy tones in cooler weather; excellent in containers as well

Ornamental Features

Thryallis features showy clusters of yellow star-shaped flowers at the ends of the branches from late summer to mid fall. It has attractive green foliage. The glossy pointy leaves are highly ornamental and remain green throughout the winter. It produces olive green capsules in late fall. The smooth bark and brick red branches add an interesting dimension to the landscape.

Landscape Attributes

Thryallis is a multi-stemmed evergreen shrub with a more or less rounded form. Its average texture blends into the landscape, but can be balanced by one or two finer or coarser trees or shrubs for an effective composition.

This shrub will require occasional maintenance and upkeep, and can be pruned at anytime. It has no significant negative characteristics.

Thryallis is recommended for the following landscape applications;

  • Mass Planting
  • Hedges/Screening
  • General Garden Use
  • Groundcover
  • Naturalizing And Woodland Gardens

Planting & Growing

Thryallis will grow to be about 6 feet tall at maturity, with a spread of 6 feet. It has a low canopy, and is suitable for planting under power lines. It grows at a medium rate, and under ideal conditions can be expected to live for 40 years or more.

This shrub does best in full sun to partial shade. It is very adaptable to both dry and moist growing conditions, but will not tolerate any standing water. It is not particular as to soil pH, but grows best in sandy soils. It is somewhat tolerant of urban pollution. Consider applying a thick mulch around the root zone in winter to protect it in exposed locations or colder microclimates. This species is not originally from North America.

This plant is NOT RELIABLY WINTER HARDY and considered "TROPICAL" in our region. It must be over-wintered inside with supplemental heat or used as a 1-season annual plant. The plant's desirable characteristics make it a good choice for growing in patio containers or flower gardens. Contact the store for care and over-wintering information.

 

* This is a "special order" plant - contact store for details

 
 
Hardiness Zone Plant Height Minimum Sunlight
Characteristics
Massing  Screening  Garden  Groundcover  Naturalizing 
Applications
Flowers  Fruit  Foliage Color  Bark 
Ornamental Features

This Plant Finder tool is an online catalog representing many of the varieties that we carry over the course of the season, and is intended for informational purposes only. Inventory varies seasonally, so we cannot guarantee that every plant will be in stock at all times - please contact the store directly for availability. It does not include our entire inventory of plants, so be sure to visit our store to see varieties that may not be represented on this list.