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Native Wildflower · Easy

How to Grow Red Trillium

Trillium erectum

Your complete guide to growing Red Trillium.

☀SunPartial shade (4-6 hours)
💧WaterModerate; consistent moisture required, especially in growing season and year one after planting
🗺Zones4–7
📏Height8-18 inches
Red Trillium📷 Wikimedia Commons

When to Plant Red Trillium

Planting windows vary by USDA hardiness zone. Look up yours by ZIP code.

ZoneStart IndoorsDirect SowHarvest
Zone 4 — April – June —
Zone 5 — April – June —
Zone 6 — April – June —
Zone 7 — March – May —

Companion Plants for Red Trillium

✓ Good companions

Bloodroot

Both are spring ephemerals with complementary bloom times and similar soil preferences

Ferns

Create natural windbreak and maintain consistent soil moisture levels

Hepatica

Early spring bloomer that doesn't compete for growing space or nutrients

Jack-in-the-Pulpit

Compatible moisture and shade needs, different root zones prevent competition

Mayapple

Provides natural mulch with large leaves, shares woodland habitat requirements

Violets

Ground cover that helps retain soil moisture and suppress weeds

Wild Columbine

Attracts beneficial pollinators while tolerating similar acidic, humus-rich soil conditions

Wild Ginger

Shares similar shade and moisture requirements, creates ideal understory microclimate

✗ Keep away from

Garlic Mustard

Invasive species that releases allelopathic compounds inhibiting native plant growth

Hostas

Large leaves create excessive shade and compete aggressively for soil nutrients

Japanese Knotweed

Extremely aggressive invasive that outcompetes native plants for space and resources

Norway Maple

Creates dense shade canopy and shallow root system that depletes soil nutrients

Notes from the garden

A greener inbox, occasionally.

Seasonal planting ideas, useful tips and a little inspiration. No weeds.