Rehmanii Superba

The ideal time to plant Calla Lily Rehmanii Superba bulbs is in the spring when soil temperatures rise above 60°F (15°C) and the risk of frost has subsided. Planting in spring allows the bulbs to establish a robust root system and grow healthily before they bloom in the summer months.

The ideal planting time can depend on the climate of your living area. Calla lilies are hardy in USDA hardiness zones 8-10, so within these zones it is safe to plant them early in the season. In these milder climates it is also possible to plant them in the fall, providing the rhizomes with a cool, dormant period before they begin to grow in spring.

If you live in an area with a colder climate, it is important to wait until the last frost has passed. For indoor planting, you can start the bulbs 6-8 weeks before the last expected frost and transplant them outdoors once the weather conditions are favorable.

Maintaining proper moisture levels is crucial for the health of Calla Lily Rehmanii Superba plants. Water your Calla Lilies regularly, aiming to keep the soil consistently moist without causing waterlogging. In general, you should water the plants every 2-3 days during the growing season.

However, this may vary depending on factors such as temperature, humidity, and soil type. Keep an eye on the soil and adjust your watering schedule as needed. In winter, when the plant is dormant, reduce watering to prevent root rot.

Keep the soil consistently moist but not waterlogged. A good thumb rule is to water when the top inch of soil is dry.

Unfortunately, Calla Lily Rehmanii Superba plants are toxic to pets, including cats and dogs. The plants contain calcium oxalate crystals, which can cause irritation and swelling in the mouth, throat, and gastrointestinal tract if ingested.

Symptoms of poisoning include drooling, vomiting, difficulty swallowing, and pawing at the mouth. If you suspect your pet has ingested any part of a Calla Lily, contact your veterinarian immediately. To keep your pets safe, consider placing your Calla Lilies in an area where they cannot access or choose pet-friendly alternatives for your garden or home.

Yes, Calla Lily Rehmanii Superba plants are perennials, which means they come back every year, producing their signature blooms and foliage. In warmer climates (USDA zones 8-10), they can be grown as outdoor perennials, going through a period of dormancy in winter before sprouting again in spring. Just layer them up with some extra mulch.

In colder climates (zones 7 and below), the rhizomes must be dug up and stored indoors during winter to protect them from frost. Replant the rhizomes in spring after the risk of frost has passed, and they should grow and bloom again, providing a beautiful display of flowers each year.