Allium - Ostara - Drought Tolerant Once Established - Bulb - 1 pc

The Ostara ornamental allium stands out for its resilience and striking, purple spherical blooms. Developed from a cross between Karatavian and purple alliums, it combines robust growth with lasting leaf appeal throughout its flowering period. This variety is valued by garden enthusiasts for its ability to maintain decorative foliage while in bloom, making it an attractive option for both individual planting and larger displays. Once established, Ostara allium is drought tolerant and reliably withstands challenging weather, offering a low-maintenance addition to perennial borders or containers.

Planting Time

For best results, plant Ostara allium bulbs in autumn, ideally from September to October. Early planting helps the bulbs establish a strong root system before winter, supporting healthy growth and abundant flowering in spring.

Planting Depth

Set the bulb at a depth of around 10 cm in the soil. This depth offers protection from frost and encourages stable root development. Choose a light, well-drained growing medium to prevent waterlogging and promote healthy growth.

Spacing

Allow 10-12 cm between bulbs when planting. This spacing enables each plant to develop fully and display its decorative qualities, ensuring flower heads do not compete for light or nutrients.

Height

Ostara allium typically reaches a height of 30-40 cm. Its sturdy stems support the globe-shaped flower heads without the need for staking, making it suitable for borders as well as larger pots or containers.

Flowering Time

This allium blooms from May to June, producing vibrant purple flowers that last for several weeks. The blooms retain their colour and structure well, making them ideal for fresh or dried arrangements. Flower bulbs like Ostara bring long-lasting seasonal interest to garden displays.

Hardiness & Overwintering

Ostara is fully hardy and does not require lifting for winter. The bulbs overwinter safely in the ground, making care straightforward and reducing the need for extra maintenance.

Uses

This variety suits mixed borders, rock gardens and larger containers. Its bold purple flowers pair well with perennials and ornamental grasses. The long-lasting flower heads are also excellent for cut or dried bouquets, maintaining their decorative appeal after cutting. Ostara is a reliable choice among garden bulbs for adding structure and colour to a range of garden settings.

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Pack Contents

Each pack contains 1 Ostara allium bulb. The label includes essential growing tips to support successful planting and flowering.