Alsace (Nerium oleander ‘Alsace’)

Grow Nerium oleander 'Alsace' in full sun, well-drained soil, and water regularly while it establishes. Once established, it is drought tolerant, but flowering is usually better when the soil has some deep moisture.

Yes, Nerium oleander 'Alsace' is generally evergreen in warm, frost-free climates. Cold damage or severe drought can cause leaf drop, especially on young plants.

Nerium oleander 'Alsace' is a vigorous, relatively fast-growing shrub under warm, sunny conditions. Its mature size can reach roughly 15 to 20 feet tall and 10 to 15 feet wide if it is not pruned.

Give Nerium oleander 'Alsace' full sun, ideally at least 6 hours of direct light daily. Less light can produce a lankier plant and fewer flowers.

Nerium oleander 'Alsace' is best suited to warm USDA Zones 9 through 11, although protected plants may survive brief colder events. The cultivar is frost-tender and should be protected below about 18°F.

Yes, established Nerium oleander 'Alsace' tolerates drought well. Water it deeply during prolonged heat or drought if you want stronger growth and more sustained flowering.

Yes, Nerium oleander 'Alsace' tolerates salt spray, wind, and coastal conditions when planted in well-drained soil. It still needs full sun and protection from unusually hard freezes.

Use well-drained loam, sandy loam, or calcareous soil for Nerium oleander 'Alsace'. It tolerates poor soil, but waterlogged ground can damage the roots.

Water Nerium oleander 'Alsace' deeply when the soil has partly dried, with more frequent watering during its first two growing seasons. After establishment, reduce irrigation during normal weather but do not let container plants become completely dry for long periods.

Insufficient sunlight, excessive shade, drought stress, cold damage, or heavy pruning can reduce flowering on Nerium oleander 'Alsace'. Move container plants to full sun and avoid cutting off most of the young flowering wood.

Common pests include scale insects, mealybugs, spider mites, and oleander aphids. Inspect new growth and leaf undersides regularly, especially when plants are stressed by heat, drought, or indoor overwintering.

Nerium oleander 'Alsace' is generally low-maintenance, but poor drainage, cold injury, and prolonged wet foliage can contribute to problems. Good air circulation, careful watering, and removal of damaged tissue help reduce stress.

It may survive a brief light freeze, but temperatures below about 18°F can cause serious damage or kill stems. Protect young plants before freezing weather and move container plants indoors or into a frost-free shelter.

Plant Nerium oleander 'Alsace' in spring after frost danger has passed in cooler areas, or in early fall where winters are mild. Avoid planting immediately before a forecast freeze or during waterlogged conditions.

Yes, Nerium oleander 'Alsace' grows well in a large container with drainage holes and a fast-draining potting mix. Container plants need more frequent watering in summer and should be moved to a bright, frost-free location in cold climates.

Space Nerium oleander 'Alsace' about 8 to 15 feet apart, depending on whether you want a hedge or individual shrubs. Allow additional room for mature plants that are not routinely pruned.

Yes, apply a moderate mulch layer around Nerium oleander 'Alsace' to conserve soil moisture and protect roots. Keep mulch away from the stems and avoid materials that retain excessive moisture against the crown.

Propagate Nerium oleander 'Alsace' most reliably from semi-hardwood or softwood cuttings. Root cuttings in a sterile, well-drained medium while keeping them warm and lightly moist.

Prune Nerium oleander 'Alsace' lightly after flowering or in early spring before strong new growth begins. Remove dead, damaged, or crossing stems and avoid cutting back every flowering branch at once.

You can rejuvenate Nerium oleander 'Alsace' by removing selected old stems, but severe pruning may eliminate flowers for a season. Make major cuts gradually and wear protective clothing because the sap is toxic.

Yes, all parts of Nerium oleander 'Alsace' are highly toxic if ingested. Keep leaves, flowers, stems, and fallen plant material away from children, pets, and livestock, and seek urgent medical or veterinary advice after ingestion.

Contact with the sap of Nerium oleander 'Alsace' may irritate the skin, particularly through cuts or prolonged exposure. Wear gloves and long sleeves when pruning, wash exposed skin afterward, and avoid touching your eyes or mouth.

Yes, Nerium oleander 'Alsace' is toxic to dogs and cats, as well as horses and people. Prevent pets from chewing the plant and remove fallen leaves or pruned material from accessible areas.

Nerium oleander 'Alsace' usually blooms from early summer into fall, often from June through September in temperate climates. In warm regions with adequate moisture, flowering may continue for longer.

The flowers of Nerium oleander 'Alsace' are single and mostly white to rosy white, with a subtle pink flush and a darker marking in the throat. They are borne in clusters near the branch tips.

Nerium oleander 'Alsace' flowers are generally described as lightly or slightly fragrant. Fragrance intensity can vary with temperature, time of day, and growing conditions.

Yes, the flowers of Nerium oleander 'Alsace' can attract insects, including bees and other flower visitors. Do not handle the plant casually, because its ornamental value does not reduce its toxicity.