Product Field NotesCompanion Plants
Night Owl Mangave: A Nearly Black Rosette for Sunny Containers
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Night Owl mangave is about as dark as a succulent gets. Its wide, thick leaves are so densely covered in purple-black spots that they look nearly black, with hints of olive green showing through. The leaf edges ripple gently to show small dark spines, and the low, open rosette has an almost velvety finish.
It loves lavender's kind of conditions, hot sun and sharp drainage, but it is hardy only in zones 9 to 11. In the Great Lakes region it is a summer container that spends winter indoors.
Quick answer: Grow Night Owl in a pot of gritty, fast-draining soil or cactus mix in full sun, and water when the soil is dry. Set it among lavender for summer and bring it indoors to a bright window before frost.
Night Owl at a glance
| Trait | What to expect |
|---|---|
| Botanical name | × Mangave 'Night Owl' |
| Foliage | Near black from heavy dark spotting; leaves about 2 inches wide with rippled edges |
| Flowers | Rarely flowers |
| Size | 6 to 8 inches tall, 16 to 18 inches wide |
| Hardiness | USDA zones 9 to 11 |
| Light | Full sun |
| Deer | Resistant |
Dark drama beside silver lavender
Nothing makes silver foliage look brighter than something nearly black beside it. A low bowl of Night Owl set at the front of a lavender bed, on a sunny stone step or on a gravel patio turns the lavender's gray-green into a highlight. Its color deepens in full sun, so the spot that suits the lavender suits Night Owl too.
At only 6 to 8 inches tall, it is a good tabletop or step plant, and it fits shallow containers well. For a striking trio, group it with a pale, cream-edged mangave and a pot of white lavender. Plan pot placements in the Companion Plant Planner.
Summer care
- Light: full sun for the darkest color. In shade it looks more olive.
- Mix: gritty, fast-draining soil or cactus mix in a pot with a drainage hole.
- Water: water deeply when the mix is dry, then let it dry out again.
- Placement: the marginal and tip spines are small but sharp. Keep it away from busy walkways.
Winter indoors
Before the first frost, bring Night Owl indoors to your brightest window. The Frost Date Estimator helps you time the move. Water sparingly in winter; a dry, bright rest is better than a wet one. Indoors the color may lighten a bit in lower light, and it darkens again after it goes back outside. In spring, once frost danger has passed, ease it back into full sun over several days.
The plug tray format
Night Owl is offered as a full 72-cell plug tray, a good fit for growers and anyone potting up mangaves for summer containers. See the product page for current availability, or the Wholesale Hub for tray orders.
Frequently asked questions
Is it really black?
It is green underneath, but the spotting is so dense that the leaves look nearly black, especially in full sun.
Can I plant it in the ground for summer?
You can, but lifting it before frost disturbs the roots. A pot set among the lavender is simpler.

































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