A Complete Planting Guide for Canadian Gardeners
Eremurus, commonly known as Foxtail Lily, are bold, architectural perennials famous for their tall flower spikes and dramatic summer blooms. When planted correctly, they create striking vertical interest in sunny borders and return year after year.
This guide explains when, where, and how to plant Eremurus tubers for the best results.
When to Plant Eremurus Tubers
Plant Eremurus tubers in fall, ideally in mid to late autumn, before the ground freezes. If planting eremurus in spring, plant after the last frost.
- Fall planting allows roots to establish before winter
- Tubers remain dormant through winter
- Shoots emerge in spring followed by summer blooms
Plant as soon as possible after receiving your tubers for best performance.
Where to Plant Foxtail Lilies
Choose a sunny, sheltered location with excellent drainage.
Ideal planting locations include:
- Back of garden borders
- Sunny beds with free-draining soil
- Areas protected from strong wind
Eremurus do not tolerate wet soil, especially in winter, so drainage is critical for long-term success.
Soil Requirements
- Well-drained soil is essential
- Improve heavy or clay soil with compost and grit or sand
- Avoid low-lying or waterlogged areas
Loose, well-aerated soil supports healthy root development and tall flower spikes.
Preparing Eremurus Tubers Before Planting
Before planting:
- Soak tubers in water for 2 to 3 hours to rehydrate them
- Handle carefully, as the long roots are fragile and can break easily
Soaking helps encourage quicker establishment once planted.
How to Plant Eremurus Tubers
- Dig a hole 15 to 20 cm deep, wider than the tuber
- Create a small mound of loose soil or sand in the center
- Place the tuber on the mound with roots spread downward
- Position the crown just below the soil surface
- Make sure any visible shoots or “eyes” face upward
- Backfill gently and firm the soil lightly
Do not plant too deeply. Shallow planting helps the plant establish more easily.
Spacing Eremurus Tubers
Space tubers 15 to 20 cm apart.
Proper spacing:
- Allows roots to spread naturally
- Supports upright flower stems
- Reduces competition for nutrients
Planting in groups creates a more dramatic visual effect.
Watering After Planting
After planting:
- Water thoroughly to settle the soil
- Do not water again during winter dormancy unless conditions are unusually dry
In spring, water lightly during dry periods as growth resumes.
Eremurus Care and Maintenance
Eremurus are low maintenance once established.
- Minimal watering required after establishment
- Avoid disturbing the roots in future seasons
- Allow foliage to die back naturally after flowering
Letting foliage fade feeds the tuber and supports blooms the following year.
When Do Eremurus Bloom
Eremurus typically bloom in early to mid summer.
- Tall flower spikes rise above surrounding plants
- Blooms open from the bottom upward
- Flowers last several weeks under good conditions
They pair well with perennials, roses, and spring bulbs that finish later in the season.
Why Grow Eremurus in Your Garden
- Dramatic height and structure
- Long-lasting summer blooms
- Excellent focal point for sunny borders
- Hardy and reliable when planted correctly
Foxtail Lilies add a bold, architectural look that few other plants can match.
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