Tigridia: The Mexican Shellflower and Its Winter Care
Tigridia, also known as Mexican shellflower, is a vibrant summer-blooming bulb that adds a splash of color to any garden. However, as a native of warmer climates, Tigridia requires special care during the winter months to survive in colder regions.
Hardiness and Growing Conditions
Tigridia is hardy only to zone 8, meaning it cannot withstand freezing temperatures. It thrives in heat, humidity, and full or partial sun. However, it is intolerant of wet soil and freezing temperatures.
Winterizing Tigridia Bulbs
To protect Tigridia bulbs from winter damage, it is essential to dig them up before the first frost. Follow these steps for successful winterizing:
1. Digging Up the Bulbs:
- Once the blooms have faded, allow the foliage to die back naturally to replenish the bulb’s energy.
- Dig up the bulbs gently using a trowel, avoiding damage.
2. Preparing the Bulbs:
- Remove the foliage, leaving about 3 inches (8 cm) attached.
- Shake off excess soil and clean the roots.
- Allow the bulbs to dry out in a shady area for several weeks.
3. Storing the Bulbs:
- Place the bulbs in a cardboard box with air holes.
- Fill the box with peat moss, perlite, vermiculite, or dry sand, ensuring each bulb is surrounded by an inch (2.5 cm.) of the medium.
Winter Storage Conditions
Store the Tigridia bulbs in a cool, dry area, such as a garage or unheated basement. The temperature should remain at least 50 degrees Fahrenheit (10 degrees Celsius) throughout the winter.
Spring Planting
Once spring arrives and the danger of frost has passed, it’s time to replant the Tigridia bulbs. Follow these steps:
1. Preparing the Soil:
- Choose a sunny location with well-drained soil.
- Amend the soil with compost or other organic matter.
2. Planting the Bulbs:
- Plant the bulbs 2-3 inches deep and 6-8 inches apart.
- Water the bulbs thoroughly after planting.
With proper winter care and spring planting, Tigridia bulbs will reward you with their stunning blooms season after season.
Additional Tips
- Tigridia can also be grown in containers, which provides more control over their winter environment.
- If you live in a colder climate, consider starting Tigridia bulbs indoors 6-8 weeks before the last frost date.
- Protect Tigridia plants from slugs and snails, which can damage the bulbs and foliage.
- Enjoy the vibrant colors and unique shape of Tigridia flowers throughout the summer months!