Siberian squill (Scilla siberica) is a spring-flowering bulb known for its vibrant blue blooms that emerge early in the season. These resilient plants often carpet garden beds or naturalized areas. Growing them from seed offers a unique opportunity for gardeners to establish large drifts.
Understanding Siberian Squill Seeds
Siberian squill seeds develop within small capsules that form after the flowers fade. These capsules begin green and gradually turn brown or purple as they mature, each containing several reddish-brown seeds. When ripe, the capsules burst open, releasing their contents a short distance from the parent plant. Ants also help spread the seeds, contributing to the plant’s naturalization.
Collecting and Planting Siberian Squill Seeds
Collecting Siberian squill seeds requires careful timing, as the capsules burst open once mature. Monitor the seed pods closely after flowering, collecting them when they have turned brown but before they split and release their seeds. Once collected, the seeds can be planted immediately without special stratification, ideally in late summer or early fall.
When planting, select a location with partial shade, such as under deciduous trees, where the plants can receive early spring sun before the tree canopy fills in. The soil should be well-draining and enriched with organic matter, like a two-inch layer of compost. Sow the seeds shallowly, covering them very thinly with compost or grit, or simply scatter them on prepared soil. For a naturalized appearance, space seeds a few inches apart.
Caring for Siberian Squill from Seed
After planting, newly sown Siberian squill seeds typically germinate the following spring, though the process can be slow. Young seedlings may initially appear grass-like. Consistent moisture is beneficial for new plantings. It takes two to three years for plants grown from seed to reach flowering maturity. During this period, ensure the young plants are not outcompeted by weeds.
Once established, Siberian squill requires minimal fertilization, though a bulb fertilizer in early spring can support growth. Allowing the foliage to yellow and die back naturally after blooming is important, as this process helps the bulbs store energy for the next season.
Important Considerations for Siberian Squill
Siberian squill naturalizes and self-seeds readily, creating large colonies over time. This characteristic makes it suitable for mass plantings and groundcover, but it also means it can spread extensively. The plant is deer-resistant due to the presence of certain alkaloids. However, all parts of the Siberian squill plant are toxic if ingested. Exercise caution around pets and small children, as consumption can lead to symptoms.