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The Daily Insight

Why has my Laburnum tree died?

Author

Emily Sparks

Published May 28, 2026

Why has my Laburnum tree died?

ANSWER: The main disease problem with Laburnum trees is root rot. The tree will begin to look sickly and eventually die. The cause is generally a waterlogged soil.

What is eating my Laburnum leaves?

The caterpillars of laburnum leaf mining moth feed within the leaves of laburnum and occasionally lupins. This results in brown circular blotches on the leaves.

Why has my Laburnum stopped flowering?

Laburnums won’t always flower in successive years. They have a tendency to drain themselves of their energy reserves whenever they put on a good show and can take another season to stabilise again. Give them a high Potash feed and leave them to their own devices.

When can I cut back my Laburnum?

Laburnums are best pruned during late summer because they are prone to bleeding if pruned in spring or early summer. However, you can also prune them anytime up until Christmas.

How poisonous is a laburnum tree?

All parts of Common laburnum are extremely poisonous, but the pea-like seeds are particularly attractive to children. If ingested, they can cause nausea and vomiting, and can be lethal in large doses (15 seeds or more).

Are laburnum trees poisonous to dogs?

Laburnum: (Cytisus alpinus) All parts of this plant are poisonous, but especially the seeds. Even chewing laburnum bark or twigs can affect a dog.

Is laburnum poisonous to dogs?

How much laburnum is poisonous?

How poisonous is a Laburnum tree?

Is laburnum poisonous to touch?

You are quite right to be concerned about Laburnum as all parts of the plant are poisonous and children should be warned never to touch the black seeds contained within the pods as they contain an alkaloid poison. However, as the seeds have a bitter taste, they are appealing to children in appearance rather than taste.

Is laburnum fast growing?

It’s a fast-growing tree with dark green leaves, and very long flower racemes. It has been given the prestigious RHS Award of Garden Merit. Laburnum alpinum ‘Pendulum’ – this is a weeping cultivar of the Scotch Laburnum.

What happens when you plant a laburnum tree?

You might not want to put in the time and effort to grow the tree for such a short period of bloom. The foliage does not turn a different colour in the autumn and drops off the tree. The fruit has no ornamental value and, along with the foliage, often creates a large amount of litter.

Where is the Laburnum Arch in Bodnant Garden?

The laburnum arch at The National Trust’s Bodnant Garden in North Wales is world-famous. It inspired the late Rosemary Verey to create her own mini version at Barnsley House in Gloucestershire.

Can our Laburnum tree poison our son?

Or should we just have the tree removed? You are quite right to be concerned about Laburnum as all parts of the plant are poisonous and children should be warned never to touch the black seeds contained within the pods as they contain an alkaloid poison.

Which is the most common laburnum tree in the UK?

The most common Laburnum in the UK, by a huge margin, is the common Laburnum (laburnum anagyroides) and the hybrid Laburnum x watereri ‘Vossii’. Another common generic name is the Golden Chain tree. There are other types but for most gardeners these are the ones that grow best in most parts of the UK.

What does a laburnum plant look like after it dies?

It does look like the picture a bit. The bark is orangey and has stripped off in some places leaving it silver. Interested in Buddyboy’s comments on root-rot. My 20 year old Laburnum started dying last year.

Is it dangerous to eat part of a laburnum tree?

Although eating any part of the laburnum tree can cause very unpleasant side-effects, the risks of death are minimal. Compare that that to the estimated 6 children which were killed in bicycle accidents in 2015 ( ROSPA) and it’s clear that there are far more dangerous things in life than laburnum trees.

Why are the leaves on my Laburnum tree turning brown?

I have a laburnum tree in my front garden. It is about 20 years old. Today I noticed that all the leaves have gone brown and died. It seems green when I broke off a twig. Does anyone know what has happened? Yep, me too. I was convinced that some sort of airborne pollution was to blame.

Is there any way to remove Laburnum die back?

If this was indeed root-rot, does whatever cause the problem stay in the soil (if indeed it is in the soil and not airborne) and is it wise to replace it? Finally, is there any way to cleanse the soil?