Giant Four o'clock

Mirabilisgigantea

Family
Nyctaginaceae (nyk-taj-i-NAY-see-ee)
Genus
Mirabilis (mih-RAB-ih-liss)
Species
gigantea (jy-GAN-tee-uh)
Synonym
Allionia gigantea
Oxybaphus giganteus
Sun Exposure
Full Sun
Sun to Partial Shade
Foliage
Deciduous
Smooth
Height
36-48 in. (90-120 cm)
4-6 ft. (1.2-1.8 m)
Spacing
18-24 in. (45-60 cm)
24-36 in. (60-90 cm)
Hardiness
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)
Danger
Seed is poisonous if ingested
Bloom Color
Pale Pink
Pink
Rose/Mauve
Bloom Time
Mid Spring
Late Spring/Early Summer
Other Details
Category
Herbs
Perennials
Water Requirements
Drought-tolerant; suitable for xeriscaping
Foliage Color
Blue-Green
Where to Grow
Bloom Characteristics
Flowers are fragrant
Bloom Size
Other details
Soil pH requirements
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)
Patent Information
Non-patented
Propagation Methods
By dividing rhizomes, tubers, corms or bulbs (including offsets)
From seed; direct sow after last frost
Self-sows freely; deadhead if you do not want volunteer seedlings next season
Seed Collecting
Collect seedhead/pod when flowers fade; allow to dry
Regional

This plant is said to grow outdoors in the following regions:

Mesilla Park, New Mexico

Clarksville, Tennessee

Arlington, Texas

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Gardener's Notes:

1
positive
0
neutral
0
negative
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Josephine, Arlington, TX (Zone 8a) | June 2007 | positive

Giant four o'clock, Mirabilis gigantea is a perennial Native to Texas and Oklahoma. I found this plant at Pappy Elkins park which is a wi...Read More

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