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Flax Blueberry is an evergreen perennial with narrow green leaves, small blue flowers, and blue berries. Ideal for borders and Southwest Florida garden beds.
| Mature Height: | 2'-3' |
|---|---|
| Mature Width: | 3-5 ft. |
| Sunlight: | Part Sun to Part Shade (3-6 Hours) |
| Water Needs: | Moderate |
| Growth Rate: | Moderate |
| Botanical Name: | Dianella tasmanica |
| Grows Well In Zones: | USDA Zones: 8-11 |
Flax Blueberry – Evergreen Foliage for Landscape Borders and Garden Beds
Produces small blue flowers followed by decorative blue berries. Suitable for foundation plantings, palm beds, and grouped landscape plantings.
Flax Blueberry, also known as Blueberry Flax Lily, is an evergreen perennial commonly associated with Dianella species. It typically grows 1–3 feet tall and 1–3 feet wide, depending on the variety. Its narrow, arching green leaves form clumps suitable for landscape borders, foundation beds, and grouped plantings in Southwest Florida.
This plant grows best in partial shade to bright, filtered sunlight and prefers well-drained soil. Morning sun is suitable, while afternoon shade helps protect the leaves during hot weather. Some varieties can tolerate more direct sunlight with adequate moisture.
For landscape planting, space Flax Blueberry approximately 18–24 inches apart, depending on the starting size and desired coverage. It can be planted beneath palms, along garden edges, or in front of taller shrubs.
Newly planted Flax Blueberry needs regular watering while its roots become established. Mature plants tolerate short dry periods but benefit from additional watering during extended drought. Allow the upper layer of soil to begin drying between waterings and avoid standing water.
Small blue to violet flowers may develop on slender stalks, sometimes followed by bright blue berries. Flowering and fruit production vary by variety and growing conditions. The berries are ornamental and should not be assumed edible. Flax Blueberry grows at a moderate rate and requires little pruning. Remove older or damaged leaves near the base as needed. Established clumps can be divided to manage their size. Some varieties spread through underground stems and may need occasional control near garden borders.
Why You'll Love It
Blue Flowers and Berries: Produces small blue to violet flowers that may develop into bright blue ornamental berries.
Compact, Grass-Like Foliage: Long, narrow green leaves provide the appearance of ornamental grass while growing as an evergreen perennial.
Low-Growing Coverage: Forms clumps that help fill open planting spaces beneath taller shrubs and palms.
Partial Shade Tolerance: Grows in filtered sunlight and partially shaded areas where many full-sun flowering plants may struggle.
Sun Requirements: Performs best in partial shade to bright, filtered sunlight, with some afternoon protection beneficial in exposed locations.
Water Needs: Requires regular watering during establishment and supplemental irrigation during extended dry periods once mature.
Mature Size: Approximately 1–3 feet tall and 1–3 feet wide, depending on the variety and growing conditions.
Best Uses: Partially shaded foundation beds, landscape borders, palm planting areas, grouped foliage plantings, mixed tropical gardens, and protected patio beds.
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