Tag Archives: cypress canker

Plants that disappoint

Four years ago

Four years ago, I wrote of this roadside shelter belt:

“Finally, coming home, I stopped to record the effective trimming of this Cupressus x Leylandii down the road. It was just an ordinary shelter belt until the lower canopy was recently lifted, exposing the trunks. The fact the branches have been trimmed reasonably flush helps but it adds a whole new dimension, being able to look through. It has turned an unmemorable shelter belt into something much more graceful and distinctive.”

And today. Cypress canker.

Sadly, it did not stay that way. Now it is a prime example of canker, a common problem in cypress and why the quick growing Leylandii has fallen from favour.  Canker is a fungus (two forms of seridium, in NZ at least), incurable and untreatable. It may or not be related to the limbing up carried out earlier, but it is all a bit academic now. Taking out the dying hedge is going to be a major operation for the property owner at some stage in the future.

Cypress canker

Some cupressus species and named varieties are much more susceptible than others and if you are thinking of planting any, it would pay to do an online search. There is a handy reference here from Agriculture Victoria. The names many of us know like ‘Leighton Green’, ‘Castwellan Gold’, ‘Naylors Blue’ and ‘Swanes Golden’ are all particularly susceptible. Best not to plant them in the first place, would be my advice. The cost of removal is going to be hugely greater than the cost of initial purchase.

The sparrows are stripping the flower stems bare as they open

While on disappointing plants, it is the pesky sparrows that are making me think there is no point in growing Stipa gigantea. I have used it quite extensively in the new grass garden and I will give it another year to see if sheer quantity can defeat the sparrow population. But the signs are not looking good and I may have to replace it with something else. The flower spikes are barely forming before being stripped by sparrows and bare stalks don’t do a whole lot for the garden aesthetic.

This is how I envisaged my Stipa gigantea would look

The whole point of Stipa gigantea is the gentle waving flower and seedhead which is very tall and golden – hence its common name of golden oats or giant feather grass. It appears to be compulsory in every modern British garden which is where we first saw it. And my friend Robyn Kilty praises its virtues in her little garden in Christchurch. It is a tidy grass with attractive glaucous foliage, easy to multiply by division and appears to be sterile so doesn’t set seed like many of the grasses.

I will be disappointed if I don’t get my sea of ethereal, waving golden orbs. I blame the early settlers. Could they not have left the sparrows (and blackbirds, many common slugs and snails, rabbits, ferrets, stoats and a host of other bothersome introductions) back in Old Blighty?

Look at the stipa in the background. I wanted that height and gentle movement

Postscript: while on disappointing plants, my Stachys Bella Grigio died completely. As predicted by a number of people who had a similar experience with this new release a few years back.