Propagating Lewisia can be done in two ways: by seed in autumn or by removing offsets during early summer. Both methods have their own advantages and can be successful with proper care and attention.
1. Propagation by Seed in Autumn:
– Collecting Seeds: In autumn, wait for the seed capsules of the Lewisia plant to dry and turn brown. Gently shake or tap the capsules to release the small black seeds. Collect the seeds and store them in a cool, dry place until ready to sow.
– Preparing the Soil: Choose a well-draining soil mix for sowing the Lewisia seeds. A combination of peat moss, sand, and perlite works well. Ensure the soil is loose and free from debris.
– Sowing the Seeds: Sprinkle the Lewisia seeds evenly over the prepared soil surface, ensuring they are not too close to each other. Lightly press the seeds into the soil, but avoid burying them too deep.
– Providing Ideal Conditions: Place the seed tray or container in a location with bright, indirect sunlight. Maintain a consistent temperature of around 60-70°F (15-21°C). Keep the soil slightly moist but not waterlogged.
– Germination and Care: Lewisia seeds usually take 2-4 weeks to germinate. Once the seedlings emerge, ensure they receive adequate light to prevent them from becoming leggy. Thin out the seedlings if they are overcrowded, allowing space for growth.
– Transplanting: Once the seedlings have developed a few sets of true leaves, they can be transplanted into individual pots or a prepared garden bed. Handle the seedlings with care to avoid damaging their delicate roots. Provide proper soil and watering to promote healthy growth.
2. Propagation by Removing Offsets in Early Summer:
– Identifying Offsets: In early summer, check the base of the Lewisia plant for small rosettes or offsets that have developed. These offsets are miniature versions of the parent plant and can be separated to grow new plants.
– Preparing the Soil: Choose a well-draining soil mix similar to the one used for seed propagation. Ensure the soil is loose and free from debris.
– Separating Offsets: Gently remove the offsets from the parent plant by carefully separating them at the base. Take care not to damage the roots or leaves during this process.
– Planting the Offsets: Plant the offsets in individual pots or a prepared garden bed, ensuring they are not buried too deep. Lightly press the soil around the base of the offset to secure it.
– Providing Ideal Conditions: Place the newly planted offsets in a location with partial shade to protect them from intense sunlight. Maintain a consistent temperature of around 60-70°F (15-21°C). Water the offsets regularly but avoid overwatering.
– Care and Growth: The offsets will gradually establish their own root systems and begin to grow. Provide them with proper care by monitoring soil moisture, providing occasional fertilization, and protecting them from extreme weather conditions.
– Transplanting: Once the offsets have developed a strong root system and sufficient growth, they can be transplanted into their permanent location in the garden. Choose a spot with well-draining soil and suitable lighting conditions for the specific Lewisia variety.
In my personal experience, I have found both methods of propagating Lewisia to be successful. However, I have noticed that seed propagation can be a bit more time-consuming and requires patience to wait for germination and subsequent growth. On the other hand, removing offsets is a quicker method, and the success rate is generally higher. Whichever method you choose, remember to provide the necessary care and attention to ensure healthy growth and establishment of the new Lewisia plants.
