Idaho trillium (Trillium petiolatum)

Idaho trillium

Idaho trillium flaunts a three-petaled floral display atop a solitary stem, a hallmark among its woodland kin. Each petal, broad and ovate, often sports a bolder hue at the base. Its mottled leaves gather in a whorl beneath, capturing dappled sunlight in moist, shaded habitats. This undergrowth denizen blooms with quiet grandeur, a testament to resilience in nature's serene recesses.

Scientific classification

Species

Idaho trillium (Trillium petiolatum)

Lilies, supplejacks and allies

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10 cm to 69 cm

Plant Height

5 - 32 ℃

Ideal Temperature

Images of Idaho trillium

Care Guide for Idaho trillium

Every week

Water

Partial sun

Sunlight

5 - 32 ℃

Ideal Temperature

Water: Newly-planted idaho trillium requires frequent watering to prevent soil dryness during adaptation. Once established, watering can be reduced. Maintain soil moisture without overwatering to ensure healthy growth.

Fertilize: Idaho trillium requires minimal fertilization. Apply organic fertilizers at planting and a small amount of manure compost after frost in spring. A low-nitrogen fertilizer (5-10-10 NPK) can be used to support blooming, avoiding contact with flowers or leaves.

Pruning: Idaho trillium has distinct three-petaled flowers and prefers shaded woodland settings. Pruning in early spring is essential, focusing on removing dead leaves and thinning stems for better air circulation. Minimal pruning maintains the plant's natural form, promoting overall health and flowering potential.

Propagation: Idaho trillium can propagate by sowing, requiring 5-7 years to bloom, or through plant division after flowering. For division, dig and split rhizomes with 2 buds each, burying 6 cm deep and spacing 25 cm apart. Caution is needed as this method may risk plant survival.

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