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Sphaeralcea munroana (Munro’s Globemallow)

Munro's Globemallow, White-stem Globe-mallow, Orange Globemallow, Desert Mallow, Whitestem Globemallow, Malva munroana, Nuttallia munroana, Malvastrum munroana, Malveopsis munroana

Sphaeralcea munroana, Munro's Globemallow, White-stem Globe-mallow, Orange Globemallow, Desert Mallow, Whitestem Globemallow, Malva munroana, Nuttallia munroana, Malvastrum munroana, Malveopsis munroana, Orange Flowers
Sphaeralcea munroana, Munro's Globemallow, White-stem Globe-mallow, Orange Globemallow, Desert Mallow, Whitestem Globemallow, Malva munroana, Nuttallia munroana, Malvastrum munroana, Malveopsis munroana, Orange Flowers
Sphaeralcea munroana, Munro's Globemallow, White-stem Globe-mallow, Orange Globemallow, Desert Mallow, Whitestem Globemallow, Malva munroana, Nuttallia munroana, Malvastrum munroana, Malveopsis munroana, Orange Flowers

One of the gems of the arid western United States, Sphaeralcea munroana (Munro’s Globemallow) is an attractive multi-branched perennial sub-shrub boasting a profusion of brilliant pale orange to brick-red, cup-shaped flowers, 0.75 in. across (2 cm), from late spring to mid-summer. Borne in showy clusters along the upright stems, the flowers provide a rich source of pollen and nectar to butterflies and many species of bees. The stems and small, silvery green, 3-5 lobed leaves, 2.5 in. long (6 cm), are covered with fine white hairs, giving them a slightly rough texture. An effortless plant in the garden, Munro’s Globemallow is adapted to dry areas with open exposure. Drought tolerant, it is often found growing in rocky, sandy soil. It is perfect for water-wise borders, rock gardens, banks, desert shrub areas, along driveways and walkways, and is also suitable for container planting. 

  • Grows up to 24-36 in. tall (60-90 cm) and 18-24 in. wide (45-60 cm).
  • Thrives in full sun in sandy or loamy, well-drained soils. Does not grow well in clay soils. Drought tolerant once established.
  • It is a great candidate for beds and borders, rock gardens, or Mediterranean gardens.
  • No serious pest or disease issues. Keep an eye out for a fungal rust pathogen (Puccinia sherardiana).
  • Sphaeralcea plants are important forage sources for a number of rodents, rabbits, deer, and antelope. Browsing deer will often consume all the foliage and leave only the woody base.
  • Cut back after flowering to rejuvenate the plant.
  • Propagate by seed. The seed has an impermeable seed coat and should be scarified using boiling water or other treatment prior to planting if a high initial germination rate is desired.
  • Native to western North America. It is found throughout British Columbia and the western states of Washington, Idaho, Montana, Wyoming, Colorado, Utah, Nevada, Oregon, and California.

Requirements

Hardiness 4 - 10
Heat Zones 8 - 12
Climate Zones 1, 1A, 1B, 2, 2A, 2B, 3, 3A, 3B, 7, 8, 9, 10, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Plant Type Perennials, Shrubs
Plant Family Malvaceae
Common names Globemallow
Exposure Full Sun
Season of Interest Spring (Late)
Summer (Early, Mid)
Height 2' - 3'
(60cm - 90cm)
Spread 1' - 2'
(30cm - 60cm)
Spacing 18" - 24"
(50cm - 60cm)
Maintenance Low
Water Needs Low
Soil Type Loam, Sand
Soil pH Acid, Alkaline, Neutral
Soil Drainage Well-Drained
Characteristics Showy, Semi-Evergreen
Native Plants United States, Southwest, Rocky Mountains, Pacific Northwest, California, Washington, Idaho, Oregon, Nevada, Utah, Montana, Wyoming
Tolerance Drought, Dry Soil, Rocky Soil
Attracts Bees, Butterflies
Garden Uses Banks And Slopes, Beds And Borders, Patio And Containers, Wall-Side Borders
Garden Styles Mediterranean Garden, Informal and Cottage, Gravel and Rock Garden
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Recommended Companion Plants

Antennaria dioica (Pussy Toes)
Sphaeralcea ambigua (Desert Mallow)
Gaura lindheimeri (White Gaura)
Penstemon eatonii (Firecracker Penstemon)
Sedum rupestre ‘Angelina’ (Stonecrop)
Festuca glauca ‘Blaufuchs’ (Blue Fescue)
While every effort has been made to describe these plants accurately, please keep in mind that height, bloom time, and color may differ in various climates. The description of these plants has been written based on numerous outside resources.
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Requirements

Hardiness 4 - 10
Heat Zones 8 - 12
Climate Zones 1, 1A, 1B, 2, 2A, 2B, 3, 3A, 3B, 7, 8, 9, 10, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Plant Type Perennials, Shrubs
Plant Family Malvaceae
Common names Globemallow
Exposure Full Sun
Season of Interest Spring (Late)
Summer (Early, Mid)
Height 2' - 3'
(60cm - 90cm)
Spread 1' - 2'
(30cm - 60cm)
Spacing 18" - 24"
(50cm - 60cm)
Maintenance Low
Water Needs Low
Soil Type Loam, Sand
Soil pH Acid, Alkaline, Neutral
Soil Drainage Well-Drained
Characteristics Showy, Semi-Evergreen
Native Plants United States, Southwest, Rocky Mountains, Pacific Northwest, California, Washington, Idaho, Oregon, Nevada, Utah, Montana, Wyoming
Tolerance Drought, Dry Soil, Rocky Soil
Attracts Bees, Butterflies
Garden Uses Banks And Slopes, Beds And Borders, Patio And Containers, Wall-Side Borders
Garden Styles Mediterranean Garden, Informal and Cottage, Gravel and Rock Garden
How Many Plants
Do I Need?

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