Unicorn Plant
Proboscidea altheaefolia
Family: Martyniaceae
Unicorn Plant grows in full sun and prefers dry, sandy soil. Water needs: Low.
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How to Grow Unicorn Plant
Unicorn Plant growing information includes sunlight requirements of Full sun, soil conditions listed as Dry, sandy soil with a soil pH of 6.0-8.5, and Low water needs. The listed hardiness zones are 8-11. For propagation reference, the database lists germination or establishment information for Unicorn Plant as 7-21 days, with planting or establishment depth listed as 1/2 inch. Days to maturity are listed as 120-180 days.
Plant Overview
Unicorn Plant (Proboscidea altheaefolia) is listed in the Martyniaceae family and categorized as a flower with a perennial life cycle. This profile summarizes growing information for hardiness, light, soil, water, seed starting, maturity, and other available cultivation details. Difficulty is listed as Moderate.
- Plant ID
- PLT-4304
- Family
- Martyniaceae
- Plant type
- Flower
- Life cycle
- Perennial
- Difficulty
- Moderate
Growing Conditions
Unicorn Plant is listed for full sun conditions. Water needs are listed as low. The database soil reference is Dry, sandy soil. The listed soil pH range is 6.0-8.5, and the listed hardiness range is 8-11.
- Hardiness zones
- 8-11
- Sunlight
- Full sun
- Soil
- Dry, sandy soil
- Soil pH
- 6.0-8.5
- Water needs
- Low
Seed & Germination
For seed starting, the listed germination time is 7-21 days and the seed depth is 1/2 inch. The listed time to maturity is 120-180 days. Use these values as general reference points and adjust for local climate, seed source, and growing conditions.
- Germination
- 7-21 days
- Seed depth
- 1/2 inch
Harvest & Propagation
- Days to maturity
- 120-180 days
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Growing Reference Note
Plant performance can vary with climate, soil, weather, cultivar, seed quality, and gardening methods. The values on this page are general database reference ranges rather than a substitute for local extension guidance or seed-packet instructions.