Overview
Syringa 'Andenken an Ludwig Späth' (pronounced "AHN-den-ken ahn LOOD-vig Shpayt") is one of the most beloved and widely planted lilac varieties in gardens worldwide. This classic German cultivar, whose name translates to "In Memory of Ludwig Späth", honours the renowned 19th-century German nurseryman. Known for its exceptional deep purple blooms and reliable performance, this lilac has been a garden favourite for over a century.
Mature Size: 3-4 metres tall and 3-4 metres wide
Growth Rate: Moderate to fast
Flower Colour: Rich wine-purple to deep magenta
Bloom Time: Late spring (May-June in the UK)
Fragrance: Intensely fragrant, classic lilac scent
Foliage: Heart-shaped, medium green leaves
Soil Conditions
This lilac thrives in well-draining, fertile soil with a neutral to slightly alkaline pH (6.5-7.5). It tolerates clay soils reasonably well but performs best in loamy conditions. Avoid waterlogged areas, as lilacs are susceptible to root rot in poorly draining soils.
Light Requirements
Plant in full sun to light shade. Whilst it will tolerate some shade, flowering is significantly reduced without adequate sunlight. Aim for at least 6 hours of direct sunlight daily for optimal bloom production.
Allow 2-3 metres between plants for proper air circulation. This variety makes an excellent specimen plant, hedge, or can be incorporated into mixed shrub borders. Consider placing it near windows or seating areas to enjoy the magnificent fragrance.
Watering
Water regularly during the first growing season to establish roots. Once established, this lilac is reasonably drought tolerant but benefits from consistent moisture during dry spells, particularly in spring before flowering.
Feeding
Apply a balanced, slow-release fertiliser in early spring. Avoid high-nitrogen fertilisers which can promote excessive foliage growth at the expense of flowers. A light application of compost around the base each spring is beneficial.
Pruning
Prune immediately after flowering finishes, as buds for next year's blooms form on new wood. Remove spent flower heads and any dead, damaged, or crossing branches. Older, overgrown specimens can be rejuvenated with selective removal of the oldest stems over several years.
Landscape Applications
Specimen Planting: Outstanding as a focal point in the garden
Mixed Borders: Combines beautifully with roses, peonies, and other spring-flowering shrubs
Informal Hedging: Creates a fragrant boundary when planted in groups
Cottage Gardens: Perfect for traditional English garden styles
Cut Flowers: Excellent for indoor arrangements
Pairs wonderfully with:
White or pink flowering varieties of lilac
Mock orange (Philadelphus)
Weigela
Spring bulbs (daffodils, tulips)
Herbaceous perennials like peonies and iris
Spring
The main attraction arrives in late spring with abundant clusters of richly coloured, intensely fragrant flowers. Each panicle can reach 15-20cm in length, creating a spectacular display that lasts 2-3 weeks.
Summer
Provides a solid green backdrop with attractive heart-shaped foliage that remains healthy throughout the growing season.
Autumn/Winter
Foliage may turn yellow before dropping. The bare branches reveal an attractive, multi-stemmed structure that adds winter interest to the garden.
Climate Tolerance
Hardy to -25°C, this lilac requires a period of winter chill to flower properly, making it perfectly suited to the British climate. It's unsuitable for very mild, frost-free regions.
Poor Flowering: Usually caused by insufficient sunlight, over-fertilising with nitrogen, or incorrect pruning timing
Powdery Mildew: Ensure good air circulation and avoid overhead watering
Scale Insects: Inspect regularly and treat with horticultural oil if necessary
Can be propagated from softwood cuttings in early summer, though this requires some gardening experience. Most gardeners prefer to purchase established plants from reputable nurseries.
This variety stands out for its:
Reliable Performance: Flowers dependably year after year
Intense Colour: Deep purple blooms are among the richest in colour of all lilacs
Outstanding Fragrance: Classic lilac scent that perfumes the entire garden
Low Maintenance: Once established, requires minimal care
Heritage Value: A time-tested variety with over 120 years of garden proven performance
Perfect for gardeners seeking a traditional, fragrant shrub that provides spectacular spring interest with minimal fuss, Syringa 'Andenken an Ludwig Späth' remains one of the finest lilacs available for British gardens.
Buying Shrubs from Jacksons Nurseries
At Jacksons Nurseries we sell a variety of shrubs both evergreen and deciduous with a variety of flowering times throughout the year. At certain times of the year our shrubs you buy from us may not look like the images shown on our website when deciduous leaves have fallen, the shrub has finished flowering or has been trimmed back.
Some leaves on evergreen shrubs can be damaged in winter by frost or harsh winds but in spring new leaves will readily replace those damaged. This is quite normal on many evergreen varieties and is preferable to plants grown with excessive protection that show cold shock once planted out and establish less satisfactory initially.
Availability: Stock availability figures are provided as a guide only. There is a delay between orders being placed and the plants being gathered by our pulling team. During this time it may be possible for a member of the public to purchase these plants from our Garden Centre, while this is rare it is a possibility and we will notify you of any problems as soon as possible. This figure may also include plants that have not yet be flagged as unsaleable.
Pre-order: Pre-order times are given as a guide only and may vary dependent on the growing season. Orders containing Pre-ordered products will be shipped as a single order when all items become available. Large orders may be part shipped, please contact us on 01782 502741 or email sales@jacksonsnurseries.co.uk.
* Please Note: Shrubs in 20 litre pots and above might require a pallet delivery starting at £79.99 per pallet. Depending on the exact pot size and height it may be possible to get approximately 5 plants per pallet at no extra cost. The maximum height we can dispatch on a pallet is 2.0m, this includes the height of the pallet and pot.
Shrubs are deciduous or evergreen woody plants, and often provide fragrant flowers, berries and foliage. They are good for structural framework, and they can provide a wonderful shelter and food source for wildlife.
Planting and Conditions
Container grown shrubs can be grown at any time of year. It is a little known fact that shrubs planted in the autumn and winter will be easier to look after than those planted in the spring and summer, because they will have time to establish and become hardy in the cooler months.
Plant the shrub at the same depth as it was in its original pot. Planting too deeply can result in root and stem rot.
One of the biggest causes of death in new shrubs is drought stress, so keep it well watered until it’s established.
Make sure you loosen the soil prior to planting. Most shrubs are tolerant of most soil types as long as it is fairly well draining.
Most shrubs will grow happily in containers, but they will be much more demanding on feeding and watering than shrubs in the ground would be. They will also need potting on every couple of years so that they don’t suffocate or become stunted in their pot.
Aftercare and Pruning
Once established, shrubs generally do not require much water. However, at first they need careful, frequent watering and should not be left to dry out.
Shrubs in the ground are generally not demanding and in most cases, annual feeding with general purpose fertilizer will suffice. Shrubs in containers may need more feeding; usually from early spring until late summer.
Shrubs also benefit from mulching in order to supress weeds, conserve moisture and provide vital nutrients. Mulch also greatly improves soil conditions. Shrubs can be mulched in late winter, after fertiliser has been applied, but it can be mulched through autumn to late spring as long as the ground is damp.
All shrubs benefit from dead-heading once spent flowers become apparent. Rhododendrons and Lilac especially benefit from the removal of dead flowers.
Some shrubs may show signs of reverted growth or ‘sporting’. This is where random shoots of different leaves associated with the plant’s parentage begin to appear. Most commonly this is where plants with variegated leaves sprout pure green growths instead of variegated ones.
To control reversion, remove reverted shoots promptly to discourage them. Reverted shoots are usually much more vigorous than the variegated ones, and thus should be completely pruned out and cut back into wood containing variegated foliage.
Potential Issues
Although shrubs are usually very robust garden plants, they can sometimes start to decline with no apparent or obvious reason.
This will start with browning leaves, which could indicate plant stress due to lack of water or waterlogging, an establishment failure or, in the worst case scenario, honey fungus. Another cause of leaf browning is a high salt content in the soil. This could be a natural occurrence, especially if you live near the ocean, or it could be from over fertilisation.
To remedy a high salt content, cut back on fertiliser and step up your watering regime for the next few weeks. If you live by the ocean, this will be harder to remedy—but stepping up your watering will help to wash some of the salt away all the same.