Lupinus truncatus is a species of lupine known by the common name collared annual lupine. It is native to the coastal mountain ranges and canyons of Baja California and California as far north as the San Francisco Bay Area. It grows in slope habitat such as chaparral and woodland, including areas that have recently burned.
Collared annual lupine is fairly disease-resistant and generally not prone to illnesses. Nevertheless, it can be affected by pests and diseases present in its surroundings. These problems are usually mild. For care, the plant needs moderate maintenance. It should be pruned regularly to keep a neat appearance and support healthy growth. Fertilizing can also encourage more flowering. The collared annual lupine is suitable for anyone with outdoor space, such as a garden or patio, and does not require extensive care experience. It may need more attention when grown indoors.
How to keep Lupinus Truncatus.
Light
Collared annual lupine comes from bright, open habitats where it performs best in full sun. It can tolerate some shade but favors direct sunlight for optimal growth. This plant, which can be annual or biennial, is recognized for its preference for sunny conditions.
Temperature
Collared annual lupine can adapt to a wide range of temperature conditions, but its distribution may still be limited by different combinations of water and heat. It does best in warm summer climates with sufficient rainfall or watering. Extended periods of cloudy, rainy weather or prolonged high temperatures can increase the likelihood that Collared annual lupine will die. In winter, protecting it from cold can improve the plant’s survival rate.
Fertilizer
When Collared annual lupine has opened most of its blooms to full size, begin fertilizing again. Around the peak flowering period, apply fertilizer every three to four weeks, as weather allows. Then, once Collared annual lupine starts producing fewer new blooms, stop fertilizing; there’s no reason to feed the plant when it can no longer produce additional blooms.
Botanical profile.
- Plant Type
- Herb
- Life Cycle
- Annual
- Genus
- Lupinus
- Family
- Fabaceae
- Hardiness Zone
- 8-10
- Mature Height
- 30 cm to 61 cm
- Mature Spread
- 20 cm to 40 cm
- Leaf Color
- Green, Dark Green
- Leaf Type
- Deciduous
- Flower Color
- Purple, Blue
- Flower Size
- 1.02 cm to 1.52 cm
- Bloom Time
- Mid spring, Late spring
- Planting Time
- Spring, Summer, Autumn
- Harvest Time
- Early summer, Mid summer
- Native Area
- Mexico
Other names.
