Also known as Blue Umber-Lily · Blue-Lily · Douglas' Brodiaea
Triteleia grandiflora, the large-flowered triteleia, is a bulbous perennial native to western North America, producing attractive clusters of star-shaped blue-violet flow
At-a-glance light, water, soil, and growing conditions from plant data
Full sun to partial shade
75% intensity
Prefers at least 6 hours of direct sunlight daily for best flowering, but tolerates some shade.
Moderate during growth, low during dormancy
50% intensity
Allow soil to dry slightly between waterings when actively growing. Reduce drastically as foliage yellows.
Well-drained, sandy loam
50% intensity
Hardy
50% intensity
Tolerates a wide range of temperatures and requires a cold period for vernalization to bloom well.
Low
25% intensity
A light feeding of balanced fertilizer in spring is usually sufficient. Avoid over-fertilization.
Safety information from plant toxicity data
| Attribute | Value |
|---|---|
| Toxic for humans | No 0/5 intensity |
| Toxic for pets | No 0/5 intensity |
Key traits and growing stats from plant data
Watering, pruning, propagation, and repotting details from plant data
Water consistently during the active growing season, typically spring and early summer, when the plant is producing foliage and flowers. Allow the soil to dry slightly between waterings.
Reduce watering significantly as the foliage begins to yellow and die back, entering dormancy in late summer or fall.
Deadheading spent flowers can improve the plant's appearance and prevent seed formation, though it's not strictly necessary for the plant's health.
Allow the foliage to naturally yellow and die back completely before removing it. This ensures the corm has stored enough energy for the next season.
Triteleia grandiflora can be propagated by dividing the corms in late summer or early fall when the plant is dormant. Alternatively, seeds can be collected after flowering and sown fresh, though this method is slower and may take several years to produce blooms.
Repot corms every 2-4 years, or when the clump becomes overcrowded. The best time to repot is during the dormant period in late summer or early fall.
Use a well-draining potting mix and plant the corms at a depth of about 5-10 cm.
Identify plants like this with ePlant AI
Snap a photo to get care tips and match similar species on the go.
Monthly activity intensity for bloom and fruit across both hemispheres.
Flowering & fruiting calendar
Flowering & fruiting calendar
Photos of Large-Flowered Triteleia (Triteleia grandiflora)
Common names and botanical synonyms
Botanical classification
| Rank | Name |
|---|---|
| Kingdom | Plantae |
| Division | Tracheophyta |
| Class | Liliopsida |
| Order | Asparagales |
| Family | Asparagaceae |
| Genus | Triteleia |
| Species | Triteleia grandiflora |
Similar in genus Triteleia
Answers based on plant encyclopedia data
