Sphaeralcea munroana

Munro's Globe Mallow

Orange Globe Mallow (Sphaeralcea munroana) brings a blast of bright orange to the mid-summer garden. A xeric perennial native to the Great Basin of the Western US, this rugged plant thrives in the most challenging hot, sunny dry garden conditions. Drought resistant/drought tolerant plant (xeric).
Zones4 - 9
Advantages
Native
Light Requirements
Full Sun
Annual Rainfall
Less than 10"
10 to 20"
Mature Height36-42" tall
Mature Spread24" wide
Bloom TimeMid to late summer
ShippingNo longer available this season. Learn More…
SizeNo
SKUHC016220

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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SKU
HC016220

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Orange Globe Mallow (Sphaeralcea munroana) is a welcome sight in midsummer when the heat has driven most other flowers out of bloom. Sphaeralcea's long wands of orange flowers resemble miniature hollyhocks. A deep-rooted wildflower native to the western U.S., Orange Globe Mallow is not the least bit picky about its soil and thrives in heavy clay. Cut last year's stems back to ground level each spring for best appearance. Plant amongst Callirhoe, another clay lover, for a great summer color combination. 36-42" tall x 24" wide (seed propagated).

Flat of 18 plants will cover 36 square feet when planted together

More Information
Associated SKUsHC016220
Common Name
Munro's Globe Mallow
Botanical Name
Sphaeralcea munroana
Zones
4, 5, 6, 7, 8, 9
Light Requirements
Full Sun
Flower Color
Orange
Mature Height
36-42" tall
Mature Spread
24" wide
Bloom Time
Mid to late summer
Ships As
Potted Plant
Soil Type
Clay Soil, Low Fertility Soil, Well-Drained Soil
Soil Moisture
Very Drought Resistant / Very Waterwise
Amount Of Rain
Less than 10", 10 to 20"
Advantages
Native
Ideal Region
West, Western Only, Southwest, Hot Desert
Planting Time
Spring / Summer, Fall
Neonicotinoid Free
Native To
North America
Item Unit Of Measure
Tray
Ships To Canada
No
Planting Guides
Sphaeralcea munroana (Orange Globe Mallow) - native to arid areas of the Great Basin in western North America. Very resistant to browsing deer and rabbits.

Preferred growing conditions
  • Plant in most soil types, including dry clay. Position in a full sun location.
  • Mulch with gravel.
  • Water regularly the first growing season to establish the plant. Thereafter, only occasional deep watering is needed when conditions are dry in the heat of summer.
  • Deadheading will not extend flowering. But, Sphaeralcea likes to re-seed itself, so deadheading will reduce unwanted seedling volunteers.
  • Fertilize lightly in the fall with Yum Yum
  • Special comments
  • Leave standing over the winter. Cut back to just above ground level in mid-spring. Pinch the tips of new stem growth to thicken the plant with more stems and flowers later in the growing season.
  • Plants will sometimes sucker and spread too widely for their space. Dig suckers in early to mid-spring and discard.
  • Some people are sensitive to minute, prickly hairs on stems and leaves; if so, use gloves when working with these plants.

  • 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.
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No longer available this season.

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