Water
Water consistently, allowing the top inch of soil to dry out between waterings. Reduce watering in cooler months.
Also known as Heart-Leaf Four-O'clock · Heart-Leaf Umbrella-Wort · Heart-Leaved Four O'clock
Heartleaf Four O'clock (Mirabilis nyctaginea) is a perennial wildflower native to North America, known for its attractive foliage and late-blooming flowers.
At-a-glance light, water, soil, and growing conditions from plant data
Prefers full sun to partial shade for best flowering.
80% intensity
Tolerates a range of light.
Water regularly, allowing soil to dry slightly between waterings.
60% intensity
Reduce in cooler months.
Adaptable to various soil types, but prefers well-drained soil. Tolerates poor soils.
50% intensity
Thrives in average room temperatures.
70% intensity
Ideal growing range 18-24 °C.
Outdoor
50% intensity
Fertilize sparingly in spring with a balanced fertilizer.
30% intensity
Avoid over-fertilization.
Safety information from plant toxicity data
| Attribute | Value |
|---|---|
| Toxic for humans | No 0/5 intensity |
| Toxic for pets | No 0/5 intensity |
| Edible | No |
Key traits and growing stats from plant data
Watering, pruning, propagation, and repotting details from plant data
Water consistently, allowing the top inch of soil to dry out between waterings. Reduce watering in cooler months.
Cut back dead foliage in late fall or early spring. Deadheading spent flowers can encourage reblooming and maintain a tidy appearance.
Easily propagated by seed sown in spring or by division of the rootstock in early spring or fall.
Not typically grown in pots, but if so, repot in spring every 2-3 years when root-bound, using a well-draining potting mix.
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Monthly activity intensity for bloom and fruit across both hemispheres.
Flowering & fruiting calendar
Flowering & fruiting calendar
Photos of Heartleaf Four O'clock (Mirabilis nyctaginea)
Where Heartleaf Four O'clock (Mirabilis nyctaginea) is found
Density
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Common names and botanical synonyms
Botanical classification
| Rank | Name |
|---|---|
| Kingdom | Plantae |
| Division | Tracheophyta |
| Class | Magnoliopsida |
| Order | Caryophyllales |
| Family | Nyctaginaceae |
| Genus | Mirabilis |
| Species | Mirabilis nyctaginea |
Similar in genus Mirabilis
Answers based on plant encyclopedia data
