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  • Syringa vulgaris 'Souvenir de Louis Spaeth' Tree
  • Syringa vulgaris 'Souvenir de Louis Spaeth' Tree
Carefully Packaged UK Grown Trees

Syringa vulgaris 'Souvenir de Louis Spaeth' Tree

'Souvenir de Louis Spaeth' Lilac Tree

from From £44.99 (ex. VAT)
( £53.99 (ex. VAT) inc. VAT)

Syringa vulgaris 'Souvenir de Louis Spaeth' is a lovely, large Lilac tree that can grow into a large bush that is 7 metres tall by 7 metres wide in 20 years. It produces a profusion of highly fragrant purple flowers that stand out well against the back-drop of mid-green, heart shaped foliage.

'Souvenir de Louis Spaeth' is a hardy deciduous tree that does well in full sun or partial shade. It prefers a well-drained soil with a neutral to alkaline acidity.

Click here to see all Lilac trees and bushes.

AKA Syringa vulgaris 'Andenken an Ludwig Späth', 'Souvenir de Louis Spaeth' lilac tree, Purple lilac tree more ›
Variety Root Type Height Now Form ? Price Qty Basket
Syringa vulgaris 'Souvenir de Louis Spaeth' Syringa vulgaris 'Souvenir de Louis Spaeth'
10L pot 110-130cm Bush £44.99 (ex. VAT)
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Please note: Sunday 17th December is the last order date for Christmas delivery (excludes pleached and mature trees which have an earlier deadline).

Delivery Timescales

All trees are carefully packed by our experienced team. Most deliveries are made within a week of placing the order, with many being despatched to our tried and tested couriers within 24 hours. To be on the safe side allow up to 10 working days for despatch. These trees are sent on a 'no signature required' basis, so there's no need to be in to receive your delivery. You can give instructions on where to leave it via the checkout or send us an email (

There is a slightly longer timescale on pleached and mature trees (trees over 2.5m in height) because we group orders together by geographic area for specialist delivery - we will contact these customers to notify them of the delivery date and whether the delivery driver needs help unloading the trees.

Gift trees and other trees required for arrival on a specific date can be accommodated with pleasure at no extra charge, although we accept no legal responsibility for late deliveries.

Our nursery is a busy despatch centre and therefore customers need to make an appointment to collect or view trees.  For collections, despatch charges will be refunded.


Delivery Costs

1 small tree (most trees with a height under 1.5 metres) : £7.95 + vat

1 medium tree (most trees with a height of 1.5-2 metres) or 2-4 small trees: £9.95 + vat

2+ medium trees or 5+ small trees: £12.95 + vat

1-4 large trees (trees too large to fit in a box): £19.95 + vat

Mature trees, pleached trees or 5+ large trees: Cost is calculated in the checkout process and varies by postcode. You can buy as many trees as you want for the same delivery cost and so it can work out to be economical.

The above prices exclude the Scottish Highlands, where delivery starts from £24.95 + vat and is calculated in the checkout process.


Northern Ireland, Channel Islands and Non Mainland UK

Our courier charges are not viable for just one or two trees, but if you have a larger requirement then please do speak to us and we'll see if we can find a solution.

Planting Advice for Syringa vulgaris 'Souvenir de Louis Spaeth' Trees

'Souvenir de Louis Spaeth' is a large Lilac tree so ensure there is enough space where you plan to plant it. When planting, it is important to prepare the planting area well. Pot grown Lilac trees can be planted at any time of the year. You will need to carry out the following to prepare your planting site.

Firstly, remove all weeds and grass within a metre of your desired planting hole then dig a hole as deep as your root mass and approximately 2x as wide. We recommend digging a square hole as this encourages the roots to grow straight as opposed to around inside the hole. To help your tree establish more effectively, we advise applying root grow (sprinkle in the hole for pot grown trees), especially if you have poor soil.

Before planting your lilac tree, soak the roots in tepid water for 10-15 minutes, then gently tease the roots. If you have poor soil mix 50% of your original soil with 50% high quality compost. Fill in the hole and firm around gently. Make sure not to bank the soil up around the collar of the tree as this can cause problems. To see how to use a tree stake and tie, watch our informational how to videos.

Aftercare Advice for Syringa vulgaris 'Souvenir de Louis Spaeth' Trees

If you’re planting in dry weather, water well and regularly for the first few months. The same goes for spring and summer planting. Make sure to keep an eye on your young tree and increase watering if there are extended periods of hot or dry weather. If you’re planting in autumn, you may only need to water your tree a little. We also stock a range of irrigation kits, suitable for a variety of planting schemes.

Once planted, it is important to keep the area free of competing weeds for the first couple of growing seasons. Using a glyphosate based weed killer or installing mulch matting and bark chips will aid in this. Do not simply mow the grass surrounding your tree as this will only encourage growth. If you know your area is prone to rabbits, we would advise using a rabbit guard.

Pruning Advice for Syringa vulgaris 'Souvenir de Louis Spaeth' Trees

Unlike some ornamental trees, pruning is encouraged when it comes to Lilac trees. The only question is how much and when. The aim of a Lilac tree owner is to create a full not bushy effect. If you wish to maintain a bush rather than a tree, allow the side growth to flourish and simply prune after flowering. For a tree effect, prune the longest, oldest branches that lie closest to the ground.

If your Lilac tree begins to look overcrowded remove inner branches to allow more light and air inside the canopy. Always prune dead flowers and damaged or diseased branches.

Mature Lilac trees that have become overgrown can be hard pruned back to their former glory, but it will take time. Never prune a Lilac tree back by more than a third of its size. Do this one season at a time, allowing the tree to recover in between pruning. Apply a fertiliser each autumn and again in spring, just before flowering.

Syringa vulgaris 'Souvenir de Louis Spaeth' Tree ('Souvenir de Louis Spaeth' Lilac Tree) Description

  • Common name: 'Souvenir de Louis Spaeth' lilac tree
  • Height and spread in 20 years: 7 x 7 metres
  • Seasons of interest: Spring, Summer
  • Foliage: Mid-green, heart-shaped leaves in spring and summer
  • Flowers: Highly fragrant, purple flowers
  • Soil: Prefers a well-drained site with neutral to alkaline soil acidity