Foxtail restharrow: complete guide

Overview

Foxtail restharrow, botanically known as Ononis alopecuroides, is a low-growing shrubby plant from the Fabaceae family (legume family), native to the Mediterranean region, particularly from Spain, Italy, Morocco, and Tunisia. This plant is celebrated for its small, attractive pink to red-pink flowers appearing in dense, foxtail-like spikes, hence the name. For gardeners seeking a characterful, low-maintenance shrub for Mediterranean or dry gardens, Ononis alopecuroides is an excellent choice.

This plant is extremely drought-tolerant, hardy, and requires minimal care. On gardenworld.app, you can integrate this Mediterranean treasure into rustic, Southern European garden designs.

Appearance & Bloom

Foxtail restharrow typically grows 30 to 60 cm tall with a spread of 40 to 80 cm, forming a low, compact undergrowth. The plant develops a dense shrub with fine, linear foliage that is gray-green. The leaves are small and tightly packed, creating a compact, tough appearance. In summer (May to July, sometimes extending to September), dense, foxtail-like spikes of small pink to red-pink flowers appear. These flowers are highly insect-friendly and attract bees.

The flowering period is long, with the plant producing flowers for many months. The seed pods that follow are interesting and persist for extended periods.

Ideal Location: Full Sun

Foxtail restharrow thrives best in full sun, requiring a minimum of 6-8 hours of direct sunlight daily. In shade, the plant blooms far less and will become leggy. This is a plant for sunny, hot spots. Ensure an open, unshaded location. South-facing or west-facing locations are ideal.

The plant thrives on hot, dry slopes and other challenging, hot microclimates. It is highly suited to Mediterranean and xeroscape gardens.

Soil & Drainage Requirements

Foxtail restharrow prefers very well-draining, dry to moderately moist conditions. Heavy clay or constantly wet soils must be absolutely avoided. Sandy or gravel-based soils are ideal. Add sand to heavier soils to improve drainage.

The plant tolerates various pH values (slightly acidic to neutral, even slightly alkaline). Minimal nutrition is desired; nutrient-rich soils lead to lush growth at the expense of flowers. Lean soils are fine.

Watering: Extremely Drought-Tolerant

Once established, Foxtail restharrow is extremely drought-tolerant and requires minimal watering. Water only during exceptionally dry periods (months without rain). The plant will decline in very wet summers. In container culture, water moderately, only when the mix becomes completely dry.

Excessive water can lead to root rot; this is the primary cause of failure with this plant.

Maintenance & Pruning

Foxtail restharrow requires minimal pruning. Deadheading can be done if desired, but best practice is to allow seed setting. In late winter (March), cut back yellowed, dead growth to approximately 10-15 cm. This helps keep the plant compact and dense.

The plant will not self-seed like many other garden plants, meaning you maintain control over expansion.

Maintenance Calendar

• January - March: Remove dead growth in March. Plant begins emerging.
• April - May: First flowers appear. No water needed unless extremely dry.
• June - August: Peak of bloom. Regularly enjoy pink flowers. No water needed.
• September - October: Blooming continues. Seed pods create interest.
• November - December: Plant goes to rest. No care needed.

Winter Hardiness

Foxtail restharrow is winter hardy to USDA zone 6-7, with temperatures down to approximately -15 to -20 degrees Celsius. In temperate regions, it can overwinter outdoors in most areas provided good drainage and protection from very wet winters. In extremely wet winters, protection with gravel or grit can help.

Companion Plants

Foxtail restharrow combines beautifully with:

• Lavandula: Purple lavender contrasts nicely.
• Santolina: Gray foliage with yellow.
• Cistus: White or pink flowers.
• Phlox subulata: Pink-red with low-growing form.
• Sedum: Yellow-green or purple foliage.

Available at garden centres with Mediterranean plant selections.

Conclusion

Foxtail restharrow is a versatile, highly maintenance-friendly plant for Mediterranean and dry gardens. Its pink flowers and compact growth make it ideal for rock gardens, gravel gardens, and other dry locations. For those wanting a true Southern European garden, this is an indispensable plant.