Photo by Melody

PlantFiles: Hairy Four O'Clock, White Four O'Clock, Mountain Four O'Clock, Pale Umbrella-Wort
Mirabilis albida

Family: Nyctaginaceae (nyk-taj-i-NAY-see-ee) (Info)
Genus: Mirabilis (mih-RAB-ih-liss) (Info)
Species: albida (AL-bi-da) (Info)

Synonym:Allionia albida
Synonym:Oxybaphus albidus
Synonym:Mirabilis oblongifolia
Synonym:Mirabilis ciliata
Synonym:Mirabilis coahuilensis

2 members have or want this plant for trade.


36-48 in. (90-120 cm)
4-6 ft. (1.2-1.8 m)

18-24 in. (45-60 cm)

USDA Zone 3a: to -39.9 C (-40 F)
USDA Zone 3b: to -37.2 C (-35 F)
USDA Zone 4a: to -34.4 C (-30 F)
USDA Zone 4b: to -31.6 C (-25 F)
USDA Zone 5a: to -28.8 C (-20 F)
USDA Zone 5b: to -26.1 C (-15 F)
USDA Zone 6a: to -23.3 C (-10 F)
USDA Zone 6b: to -20.5 C (-5 F)
USDA Zone 7a: to -17.7 C (0 F)
USDA Zone 7b: to -14.9 C (5 F)
USDA Zone 8a: to -12.2 C (10 F)
USDA Zone 8b: to -9.4 C (15 F)
USDA Zone 9a: to -6.6 C (20 F)
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

Parts of plant are poisonous if ingested

Bloom Color:

Bloom Time:
Late Spring/Early Summer
Mid Summer
Late Summer/Early Fall
Mid Fall


Other details:
This plant is attractive to bees, butterflies and/or birds
Flowers are fragrant
Average Water Needs; Water regularly; do not overwater
This plant may be considered a protected species; check before digging or gathering seeds

Soil pH requirements:
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)

Patent Information:

Propagation Methods:
From seed; direct sow outdoors in fall
From seed; winter sow in vented containers, coldframe or unheated greenhouse
From seed; sow indoors before last frost
From seed; direct sow after last frost

Seed Collecting:
Collect seedhead/pod when flowers fade; allow to dry
Properly cleaned, seed can be successfully stored

Click thumbnail
to view:

By BajaBlue
Thumbnail #1 of Mirabilis albida by BajaBlue


No positives
1 neutral
No negatives

Gardeners' Notes:

Neutral Xenomorf On May 8, 2011, Xenomorf from Valley of the Sun, AZ (Zone 9b) wrote:

More synonyms of this plant are: Allionia aggregata var. hirsuta, Allionia ciliata, Allionia coahuilensis, Allionia comata, Allionia grayana, Allionia hirsuta, Allionia lanceolata, Allionia pumila, Mirabilis comata, Mirabilis eutricha, Mirabilis grayana, Mirabilis lanceolata, Mirabilis pauciflora, Mirabilis pseudaggregata, Mirabilis pumila, Oxybaphus coahuilensis, Oxybaphus comatus, Oxybaphus grayanus, Oxybaphus hirsutus, Oxybaphus lanceolatus, Oxybaphus pauciflorus, Oxybaphus pseudaggregatus & Oxybaphus pumilus.


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

New Port Richey, Florida
Marlborough, Massachusetts
Farmersville, Texas
Rice, Texas

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