Mirabilis is a family of flower shrubs that are often amazing when planted in a garden.
Each species is unique but care is often similar.
Mirabilis major facts
Name – Mirabilis species
Family – Nyctaginaceae
Type – annual or perennial
Height – 3 feet (90 cm)
Exposure – full sun
Soil – ordinary, well-drained
Flowering – June to September
Proper care for most of the species is the same. In all cases, Mirabilis tends to spread easily, so carefully check its boundaries or it will turn invasive.
Planting Mirabilis in the garden
Mirabilis plants are often sold for planting in Spring.
- Plant Mirabilis from April to May.
- Space plants by about a foot (30 cm).
Once your Mirabilis is established, it will bear seeds. It’s easy to grow Mirabilis from seed.
- Sow under cover in March to protect the seedlings from freezing.
- If you’d rather plant directly in the ground, start in May.
How to prune and trim Mirabilis flowers
- Mirabilis plants aren’t frost hardy. In case of mild frost, they may start off from the tuber (roots) in spring.
When the blooming starts, you can trigger more blooms by removing dead or wilted flowers.
Since seeds have a high rate of germination, any patch of Mirabilis will quickly start spreading after the first year.
- Simply pull out any seedlings that start sprouting where they shouldn’t.
- Again, if you remove wilted flowers, you’ll reduce the amount of seeds. This reduces risk of Mirabilis turning invasive.
Different types of Mirabilis varieties
The most famous Mirabilis flower is Mirabilis jalapa, also called the four o’clock flower. It is commonly sold in garden stores for its fragrant flowers.
Interesting Mirabilis species include the following:
- Mirabilis jalapa – non-hardy species sold throughout the world. Bears wonderful flowers that open up in the evening.
- Mirabilis rotundifolia – species with round leaves, endemic (native) to Colorado in the United States. Currently threatened. Shale mulch is the perfect growing environment for this species.
- Mirabilis expansa – also called Chago or mauka. Native to the Andes, this was domesticated by the Inca civilization. It was grown for food: tuber and stems can be used for cooking.
- Mirabilis longiflora – commonly called “sweet four o’clock”. Mounding shrub up to 2 feet (60 cm) high, twice as wide. Delicious orange-blossom like scent.
- Mirabilis multiflora – also named “wild four o’clock”. Creates astounding bushes covered in violet flowers.
All Mirabilis plants originated in the Americas.
Learn more about the Mirabilis family
The sun’s heat starts to diminish, which triggers opening of the flowers. More pollinators are active at dusk thanks to the cooler temperatures.
Flowers are fragrant and release a deliciously scented odor during the entire night.
Smart tip about growing Mirabilis
If you’re fond of sleeping with windows open in summer, plant Mirabilis under your room window outside. The fragrance will call on peaceful and restful dreams and lure you to sleep!
Mirabilis on social media
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Credits for images shared to Nature & Garden (all edits by Gaspard Lorthiois):
White Mirabilis (also on social media) by titanium22 under © CC BY-SA 2.0
Violet Mirabilis by Patrick Standish ★ under © CC BY 2.0
Red and yellow mirabilis by Candiru ★ under Public Domain