Calceolaria integrifolia

Calceolaria integrifolia: A Vibrant Perennial with Slipper-shaped Flowers

Background: Calceolaria integrifolia, commonly known as Bush Slipperwort, belongs to the Calceolariaceae family and is native to Chile and Peru. It is also referred to by other names such as Pocketbook Plants, Pouch Flowers, Slipper Flowers, and Slipperwort – Sunshine. The Calceolariaceae family encompasses the genus Calceolaria, which includes over 300 species native to South America. Calceolaria integrifolia is a popular species within this genus and is commonly found in gardens and landscaped areas.

Characteristics: Calceolaria integrifolia is an herbaceous perennial that typically grows to a height of 6-12 inches and a width of 12-18 inches. It features opposite, oval leaves measuring 1-2 inches in length. The flowers of Calceolaria integrifolia are vibrant yellow, orange, or red and are borne in clusters of 2-3. These slipper-shaped flowers, approximately 1 inch long, emit a pleasant fragrance and attract bees and butterflies. The flowering period occurs during spring and summer.

How to grow Calceolaria integrifolia:

Planting: Calceolaria integrifolia thrives in full sun or partial shade. When planting, ensure a spacing of 6-8 inches between plants. Spring is the ideal time to plant Calceolaria integrifolia in well-drained soil.

Watering: While Calceolaria integrifolia is drought-tolerant, regular watering is essential, particularly during the first year after planting. Once established, the plants can withstand some drought; however, they will flourish with regular watering, especially during hot and dry weather conditions.

Fertilizer: Calceolaria integrifolia does not require excessive fertilization. However, a light application of a balanced fertilizer every few weeks can be beneficial. A recommended option is a 10-10-10 fertilizer. Apply the fertilizer to the soil around the plants, ensuring it is watered in well.

Pests and Diseases: Calceolaria integrifolia is relatively resistant to pests and diseases. However, it can be susceptible to mealybugs, spider mites, and whiteflies. Promptly treat any signs of pests with appropriate insecticides.

Deadheading: Deadheading, the removal of spent flowers, encourages the plant to produce more blooms. To deadhead Calceolaria integrifolia, simply pinch off the faded flower heads.

Pruning: Regular pruning is not necessary for Calceolaria integrifolia. However, trimming the plant back in spring can help stimulate new growth.

Calceolaria integrifolia
Bright yellow flowers of Calceolaria integrifolia

Winter Protection:

Calceolaria integrifolia is not hardy in colder climates. In such regions, it is advisable to bring the plants indoors for winter protection.

Calceolaria integrifolia with its bright yellow flowers in clusters adds a vibrant touch to gardens. By providing suitable growing conditions, including sunlight, watering, fertilization, and addressing any pests, you can enjoy the beauty of these slipper-shaped flowers. Remember to bring the plants indoors in colder climates to protect them during winter. Incorporate the stunning Calceolaria integrifolia into your garden and relish its charming presence throughout the blooming season.

Calceolaria integrifolia
Bush Slipperwort or Calceolaria integrifolia
Calceolaria integrifolia
Calceolaria integrifolia at Hyde Park in London, UK.

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