Hi Sven,

I would some information about magnolias and weeping willow trees. Are they too big for an average size garden? How big they do they get and do they need special care? Also, when is the best time to plant them?

Thank you, Gloria

Our Gardens Expert replies:

Hi Gloira,

The main problem with willow trees is that the larger varieties especially the weeping willow (Salix babylonica) have huge invasive root systems. This means that weeping willows should really be reserved for large gardens. It's important not to plant them anywhere near your house or any neighbouring buildings, as they could play havoc with the foundations and drainage system.

However, there are certain willows that can be used in a smaller garden, one of the most common being the 'Kilmarnock Willow'. This is a small 'weeping' tree that only grows to around 1.5 - 2m tall. There is an even smaller variety called Salix repens (creeping willow) which is a small creeping shrub that works brilliantly in gravel gardens and grows to about 40cm tall but has a spread of about 1.5m.

Willows are usually seen growing next to water, as they enjoy deep, moist yet well-drained soil where their roots can venture out freely. The alpine varieties require gritty soil with really good drainage.