Author Archives: Abbie Jury

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About Abbie Jury

jury.co.nz Tikorangi The Jury Garden Taranaki NZ

Flowering this week: Backhousia citriodora

The lemon fragrance from Backhousia citrodora has to be experienced to be believed

I would be the first to admit that the creamy fluffy floral clusters of this small(ish) tree are not showstoppers though they are pretty enough in their own way and make a change for autumn flowering. Nor are the long narrow leaves eye-catching though the red-brown velvety new growth is very tactile. In fact, the visuals of this plant are remarkably modest especially when you consider it is an Australian from the coastal rainforests of Queensland and northern New South Wales. The knock-you-dead aspect is the lemon fragrance when you crush or even brush past a leaf and the flowers also exude wafts of lemon. It has quite the most delicious lemon scent of any plant I know, bar none. This is apparently because Backhousia citriodora, commonly referred to as the lemon myrtle, has higher concentration of citral (lemon oils) than many other plants, including lemon verbena. In fact it is harvested commercially for lemon flavouring. I have to admit that I have not tried it in a culinary context but I will do so. You can apparently use the leaf whole (like a bay leaf) or chopped and it will give a lemon flavour without the problems of curdling, even in milk puddings. So I have read.

While not overly hardy, if given some protection when young, the backhousia should be able to grow throughout most of our area. I have seen it in a protected valley in Canberra Botanic Gardens where apparently it can survive frosts of 8 degrees. It is a member of the myrtle family and it can be clipped. This may be a plant to put alongside a bay tree in the vegetable garden or plant it by a path so you can pluck a leaf to sniff when you pass.

Tried and True – loropetalums

Loropetalums
• Widely available from most garden centres.
• Evergreen shrub.
• Tolerant of a surprisingly wide range of conditions but may need protection from heavy frosts and strong winds.
• Burgundy forms give colour all year round. 

The wine red forms of the loropetalum are a particularly good recent introduction to this country

 

The wine red form of loropetalum (sometimes called the Fringe Flower) is a relatively recent introduction to this country and a particularly good one at that. It builds in layers and left unclipped it can reach two metres by two metres reasonably quickly. It is easily shaped but is rather brittle so will snap off in wind. We grow China Pink but there is a form called Burgundy and several others – all appear to be very similar and equally good with one exception. Shun Razzleberry if you find it on offer. It starts with good colour in spring but then changes quickly to a murky, dull olive green of no merit that I can see. The flowers on the burgundy forms are interesting clusters of shocking pink spidery petals and stamens but discreet, not showy. If you have a Singapore stopover and go to the Chinese gardens there, you will see all sorts of techniques with bonsai, clipping and hedging of the attractive loropetalum shrub.

Getting the best from bananas in marginal conditions – step-by-step with Abbie and Mark Jury

A step by step guide by Abbie and Mark Jury first published in the Taranaki Daily News and reproduced here with permission as a PDF.

New Outdoor Classrooms are uploaded fortnightly.

The Jury Plants – Cordyline Red Fountain

CORDYLINE RED FOUNTAIN (syn. Festival Grass and Festival Burgundy).

A flagship Jury plant, this one, the result of many years of effort which started with two different plant genus altogether. Initially there was the work Felix did with coloured and variegated flaxes (phormium). One of the most successful plants internationally became Phormium Yellow Wave – widely grown to this day in British gardens. We have always joked that had Felix received just one cent royalty for every Yellow Wave sold, we would never have had to earn a living but back in the 1960s, there was no protection of intellectual property rights and no expectation that a breeder be rewarded financially. There were other coloured cultivars (including Misty Sunrise and Pinky) from the breeding flurry but these have not stayed in the marketplace as Yellow Wave has. However, these coloured phormiums perform better in other places than our climate with its high humidity. We struggle to keep good foliage and they look pretty tatty and badly marked by insect and rust damage along with growing too large for a small garden. So Felix moved on to the next plant genus which offered similar clumping habit and pointed leaves without being spiky.

Over 30 years ago, Felix and Mark were both fascinated by the habit and appearance of our native Astelia chathamica (often sold under a cultivar name of Silver Spear). There was little that needed improving in the pointed silver leaves of this clump forming plant, but both father and son saw the potential in trying to create a different colour-way with red foliage. So began a twenty year effort before Mark pulled the plug and decided that his red astelias were simply too difficult and too unreliable to market widely. We still have them in cultivation in the garden here and a few of the selected clone were released by us onto the market. Other seedlings found their way onto the market by devious means on the part of a third party (that is a story best kept in-house) but clearly others found the plant just as difficult to build up – and indeed to keep alive at all – because it has never been a huge commercial hit despite the demand. Sometimes breeding directions are more blind alley than interesting path and Mark reluctantly abandoned the red astelia.

Undeterred, Felix looked to the cordyline genus where he crossed two lesser known NZ forms – banksii and pumilio. In this country where Cordyline australis is by far and away the most common form around (called cabbage trees and an icon of our country), cordylines are expected to have trunks and grow several metres tall. When Mark raised the seed from this cross, there was the lucky break which came to be called Red Fountain in the first instance (but also marketed in the US as Festival Grass and Festival Burgundy).

It is clumping, rarely putting up a trunk much above 10cm with exceptionally good colouring in shiny burgundy red which lasts all year round. The narrow strappy leaves are relatively soft and fountain out around the base. In early summer, the tall, arching flower spikes are in pale lilac and highly fragrant.

Cordyline Red Fountain – one of our flagship plants here

We have been delighted at the success of this cultivar on the international market, thanks to the efforts of Anthony Tesselaar International in the capacity of our agent. Less delighted, one might say with the efforts of competitors to come in behind it with ring-ins and substitutes, some even raised from Red Fountain (how we wish they would show some originality and come up with their own ideas) but we are confident that nothing has yet appeared that is the equal of Red Fountain.

Mark has continued with the cordyline breeding, but with the market being flooded with different cordylines from other sources, many proving difficult and unreliable, he has put any further releases on hold.

A Worm's Tale

Presumably called tiger worms because of their stripes, not their size or ferocity

Mark has been having fun with tiger worm jokes. Tiger worms are what you commonly have in your worm farm and they are voracious devourers of vegetative waste. But we found in Radio New Zealand’s archives an interview from last year where Kim Hill interrogated her gardening guest on a range of topics including aforementioned tiger worms. Said guest was badly out of her depth although she knew a smidgen more than Kim (who is clearly no gardener) so she survived on a degree of bluff. But the suggestion that you want to try and keep your tiger worms in your worm farm and that if they escape to your garden they may eat your root vegetables (as in, they may have eaten Kim’s missing radishes) had us snortling in derision. Yes snortling – that is a combination of snorting and chortling.

Mark has taken to issuing warnings. Round up your tiger worms now and corral them back to the worm farm. Tiger worms are so-called because they have jaws with sharp teeth. The reason why you should never put meat in your compost is because the tiger worms develop a taste for it. Haven’t you heard about the elderly gardener who tripped and fell by her worm farm and all they found was a skeleton after the tiger worms had finished? Licences are about to be issued before you are allowed to have tiger worms on your premises and an inspector will ensure that you have them suitably housed and restrained.

The bottom lines are that while tiger worms are entirely suited to worm farms, they can be found elsewhere in the garden. Worms only process dead and decaying matter, not living plants. They have no teeth and jaws to chomp into your root vegetables. Slugs, snails and weevils will attack your plants but the faithful garden worm will not. There are many different types of worms and some, like the tiger worm or Eisenia foetida, are designed to accelerate the process of composting. Others prefer to live deeper in garden soils and these are the ones who help to aerate the ground by burrowing. A garden full of worms is a sign of good soil health and to be valued. If you spot the somewhat striped tiger worm in your garden soils, it is more likely to be an indication that you have a humus-rich layer of mulch on top.

I am sure it is a hard enough life being a worm without being accused of eating the vegetable crop. It is, by the way, apparently a myth that if you cut a worm in half, both halves will survive. They merely wriggle and die. While a worm can survive losing a bit off the end of its tail, it is not quite as resilient as many of us were brought up to believe. Oh dear, I wonder how many humble earth worms we gardeners sever in their prime or are we liberating them from life’s mortal coils?