Safety note: This plant may be toxic to humans and pets. See toxicity details.
Desert unicorn-plant (Proboscidea althaeifolia) is a unique annual herb native to arid regions, known for its distinctive hooked fruit resembling a unicorn's horn.
At-a-glance light, water, soil, and growing conditions from plant data
Full Sun
100% intensity
Prefers bright, direct sunlight for at least 6 hours daily.
Infrequent
25% intensity
Allow soil to dry out completely between waterings.
Sandy, Well-drained
50% intensity
Warm
75% intensity
Thrives in warm temperatures, but can tolerate cooler conditions if dry.
Low
25% intensity
Requires infrequent feeding, if any.
Safety information from plant toxicity data
| Attribute | Value |
|---|---|
| Toxic for humans | Yes 5/5 intensity |
| Toxic for pets | Yes 5/5 intensity |
| Edible | No |
Contains saponins. Can cause gastrointestinal upset if ingested.
Key traits and growing stats from plant data
Watering, pruning, propagation, and repotting details from plant data
Allow the soil to dry out completely between waterings. Overwatering is a common cause of root rot. Water thoroughly when the top few centimeters of soil are dry, ensuring good drainage.
Reduce watering significantly during cooler months when the plant is less active.
Pruning is generally not required for aesthetic reasons. If necessary, prune to remove dead or damaged stems. Pinching back young plants can encourage bushier growth. Avoid heavy pruning as it can stress the plant.
Propagate from seed, which requires scarification or soaking before sowing. Seeds can be sown in spring or early summer. Germination can be slow and erratic. Cuttings are not a common or reliable method for this species.
Repot only when the plant becomes root-bound, typically every 2-3 years. Use a well-draining potting mix, such as a cactus or succulent blend. Choose a pot that is only slightly larger than the current one.
Repot in spring before active growth begins.
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Monthly activity intensity for bloom and fruit across both hemispheres.
Flowering & fruiting calendar
Flowering & fruiting calendar
Photos of Desert Unicorn-Plant (Proboscidea althaeifolia)
Common names and botanical synonyms
Botanical classification
| Rank | Name |
|---|---|
| Kingdom | Plantae |
| Division | Tracheophyta |
| Class | Magnoliopsida |
| Order | Lamiales |
| Family | Martyniaceae |
| Genus | Proboscidea |
| Species | Proboscidea althaeifolia |
Similar in genus Proboscidea
Answers based on plant encyclopedia data
