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Description

Achillea 'Moonshine' is a robust and colorful perennial yarrow that grows to 2 ft. tall and 2-3 ft. wide. It produces bright yellow flower heads from mid spring into summer that contrast nicely against gray-green feather shaped foliage. Flowers are used in both fresh and dried floral arrangements; butterflies are attracted to their nectar.

This is one of the most popular and vigorous of the yarrow cultivars that is widely planted as a foliage and flowering accent plant in Mediterranean and southwestern style gardens. It is combined with other flowering perennials and planted around rocks and dry stream beds. It grows best in full sun, on well-drained soils and with low amounts of supplemental water during summer. Deadheading in the summer helps maintain good appearance.

Water Needs

The Moonshine yarrow is one of the easiest plants to grow in Inland Empire gardens in areas of full sun and when sustained with low amounts of summer water. The chart shown below provides a recommended baseline guide to the monthly irrigation schedule and volume of supplemental water needed to maintain healthy growth throughout the average year. It should be noted there are several months marked by an asterisk (*) when winter rains can provide sufficient moisture and irrigation is not needed. The high and low range of moisture indicates it can grow with varying amounts of water and you should make irrigation adjustments based of field observations of growth and character.

Irrigation Schedule and Graph

Low Water Use Plants

Irrigation Schedule 2

  Jan* Feb* Mar* Apr May Jun Jul Aug Sep Oct Nov* Dec*
Runs per Month 0x to 2x 0x to 2x 0x to 2x 1x to 2x 1x to 2x 1x to 2x 1x to 2x 1x to 2x 1x to 2x 1x to 2x 0x to 2x 0x to 2x
Inches per Run 1" 1" 1" 1" 1" 1" 1" 1" 1" 1" 1" 1"
 
Inches per Month 0" to 2" 0" to 2" 0" to 2" 1" to 2" 1" to 2" 1" to 2" 1" to 2" 1" to 2" 1" to 2" 1" to 2" 0" to 2" 0" to 2"

Range of supplemental summer water: 7"-14"
Range of supplemental winter water: 0"-10"

 
0"-2"
0"-2"
0"-2"
1"-2"
1"-2"
1"-2"
1"-2"
1"-2"
1"-2"
1"-2"
0"-2"
0"-2"
  Jan* Feb* Mar* Apr May Jun Jul Aug Sep Oct Nov* Dec*
For more information on how to use this Irrigation Schedule and Graph, click here.

Plant Properties

Plant Type: Perennial
Foliage Character: Evergreen
Habit: Clumping
Growth Rate: Moderate
Height: 2 ft.
Width: 2 ft. - 3 ft.
Water Needs: Low 2
Foliage Color: Gray green
Flower Color: Yellow
Flower Season: Spring
Soil Adaptations: Well-draining soil
Exposure Adaptations: All day sun
Function: Rock gardens, Residential spaces, Raised planters, Grouped, Flowering accent plant, Container plant, Borders, Attracts butterflies, Small spaces

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