Woodland Sage Ostfriesland

Salvia 'Ostfriesland' is an absolute classic as a companion plant for roses, with which it shares flowering time and loves the sun. However, it also looks beautiful in modern perennial beds in combination with:

• Ornamental grasses
• Coneflowers (Echinacea)
• Stonecrops
• Lavender

Its dark violet-blue flowers create an amazing contrast to the yellow or pink flowers of neighbors.

This sage thrives best in full sun. It loves heat and needs well-drained soil. It is an ideal plant for south-facing beds, rock gardens, or steppe plantings. If you have heavy clay soil in the garden, it is necessary to improve it with sand or gravel before planting so the roots do not stand in water.

Yes, the 'Ostfriesland' cultivar grows to a height of 40–60 cm and forms compact clumps, so it is also suitable for containers. It is important to:

• Use a container with a drainage hole.
• Put a drainage layer (stones, expanded clay) at the bottom.
• Place it in a sunny spot.
• Monitor watering more frequently in a container than in a flowerbed so the substrate doesn't dry out completely.

To create a dense stand, we recommend planting 7 to 9 plants per m². Spacing between individual seedlings should be 35–40 cm. Plant the plants as deep as they grew in the container. In beds, it looks best when planted in larger groups, where its purple color truly stands out.

Woodland sage is relatively drought resistant after rooting. It requires watering:

• After planting: Until the plant establishes, keep the soil slightly moist.
• In hot summer: During prolonged drought, water it occasionally to support flowering.
• Important: The plant cannot tolerate waterlogging; roots could rot. Better less than more.

Yes, that's an excellent trick! As soon as the sage finishes blooming for the first time in June or July, cut it back low above the ground. The plant will very quickly sprout new leaves and delight you with a second wave of flowers at the turn of August and September. This cut also helps keep the plant compact and dense.

Quite the opposite. Woodland sage prefers poorer soils. Over-fertilizing (especially with nitrogen) can cause the plant to become leggy, sparse, and bloom less. It is enough to add a little compost in the spring, but in fertile soil, it can do without fertilization entirely.

Yes, woodland sage is not poisonous. On the contrary, it belongs to the Lamiaceae (mint) family just like herbs and is edible, although it is grown primarily for ornamentation and not for culinary use like common sage. So you don't have to worry if you have a dog, cat, or small children in the garden.

You don't have to worry about Salvia 'Ostfriesland' in winter. It is fully frost-hardy down to -28 °C (zone 5a). It does not require any winter protection or covering with evergreen boughs. In spring, simply remove the dry above-ground parts from last year and the plant will sprout again.

The main flowering time begins in June and lasts through July. If you cut the plant back after flowering, it will bloom again with lower intensity in August and September. You can thus enjoy the beautiful violet-blue color all season long.

Definitely! Woodland sage is a magnet for pollinators. Its tiny but numerous flowers are rich in nectar and provide excellent forage for bees, bumblebees, and butterflies throughout the summer. If you want a garden full of life, this is a great choice.

Heavy clay soil that retains water is enemy No. 1 for sage – roots suffocate in it. If you have such soil, you have two options:

1. Dig a larger hole during planting and mix the soil with a large amount of sand or fine gravel (drainage).
2. Plant sage in a raised bed where water drains better.

Yes, salvia is suitable for cutting. Its sturdy, upright stems with purple spikes look beautiful in a vase, whether alone or in bouquets with other summer flowers. They stay fresh in water for approximately 7 days.

Since it is a perennial, the easiest way to propagate it is by dividing clumps. You can do this early in the spring (before the plant starts growing vigorously) or in the autumn after flowering. It is even advisable to divide and replant older clumps once every 3–4 years to rejuvenate the plant and maintain its vitality.

Generally, 'Ostfriesland' salvia is a very healthy and hardy perennial that pests and diseases avoid. The only exception are slugs, which like to feast on young, freshly sprouting shoots in the spring. It pays to check the plants during this period and protect them if necessary.