Photo by Melody

PlantFiles: Regal Pelargonium (UK), Martha Washington Geranium (US), Pansy Flowered Geranium
Pelargonium x domesticum

Family: Geraniaceae (jer-ay-nee-AY-see-ee) (Info)
Genus: Pelargonium (pe-lar-GO-nee-um) (Info)
Species: x domesticum (doh-MESS-tik-um) (Info)

» View all varieties of Pelargoniums

One member has or wants this plant for trade.

Tropicals and Tender Perennials

12-18 in. (30-45 cm)
18-24 in. (45-60 cm)

12-15 in. (30-38 cm)

USDA Zone 9b: to -3.8 C (25 F)
USDA Zone 10a: to -1.1 C (30 F)
USDA Zone 10b: to 1.7 C (35 F)
USDA Zone 11: above 4.5 C (40 F)

Sun Exposure:
Full Sun
Sun to Partial Shade


Bloom Color:
Magenta (Pink-Purple)
Fuchsia (Red-Purple)

Bloom Time:
Blooms repeatedly


Other details:
Average Water Needs; Water regularly; do not overwater

Soil pH requirements:
5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)

Patent Information:

Propagation Methods:
From herbaceous stem cuttings
Allow cut surface to callous over before planting
From seed; sow indoors before last frost
By serpentine layering

Seed Collecting:
Bag seedheads to capture ripening seed
Allow seedheads to dry on plants; remove and collect seeds

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There are a total of 30 photos.
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3 positives
3 neutrals
No negatives

Gardeners' Notes:

Positive annlof On Jan 17, 2010, annlof from Camarillo, CA wrote:

Blooms profusely in spring and summer in SoCal. I consider this plant a low-growing shrub. Does fine with half-day sun; benefits from moderate pruning twice a year to keep it from getting leggy. Foliage looks good all year. In my experience this geranium seems to be less susceptible to the budworms which attack the zonal and ivy types.

Positive pforrester On Jun 6, 2006, pforrester from Fallbrook, CA wrote:

Planted in west facing border with star jasmine in front and Indian Hawthorne behind. Beautiful color all year. I live in North San Diego County just inland from the coast.

Positive kooger On May 29, 2004, kooger from Oostburg, WI (Zone 5b) wrote:

Bought mine May 2003, it was pretty all summer, over-wintered it in our cool bedroom (usually 55-65 deg.) and watered infrequently. Took cuttings and rooted them in soilless mix successfully and now, May 2004, have 4-5 containers with Martha Washington 'Raspberry Swirl'. Quite happy with this plant.

Neutral ign On Jun 10, 2003, ign from Hayward, CA (Zone 10a) wrote:

we purchased two of these (Martha Washington) late this winter. They are doing well in containers. I am having some problems with a type of bee that is taking off pieces of the flowers. Any suggestions on how to fix this? Otherwise they are putting on very nice show.

Neutral Ulrich On Jun 1, 2003, Ulrich from Manhattan Beach, CA (Zone 11) wrote:

Where hard frost won't kill them they should be grown in containers to keep them from taking off.

Neutral Baa On Oct 9, 2001, Baa wrote:

Shrubby, evergreen perennial.

Has rounded, slightly toothed, mid green leaves on stout stems. Bears very showy, large, velvety flowers ranging from pink, white, orange, purple and red which can be seen as selfs (single colour), bicolors, light or very deep colours which appear almost black. The flower heads can be up to 5-6 inches across, each flower being about 1.5 inches across. Double flowers are produced but most commonly singles.

Flowers from June-September outside.

Grows in well drained soil (not acid) and Regals prefer partial shade. They need a frost free position and dislike winter wet so best bought indoors until last frost date.


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

Hanceville, Alabama
Camarillo, California
Citrus Heights, California
Duarte, California
Fallbrook, California
Hayward, California
Long Beach, California
Manhattan Beach, California
Martinez, California
San Leandro, California
Temple City, California
Centerville, Iowa
Kent, Washington
Hanna, Wyoming

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