Monthly Archives: February 2008

What I used to grow in my Lab…

The place where I worked in has comfortable air conditioning all day long where the air temperature is much cooler (22 to 25 deg C) than our ambient room and outdoor temperatures. For most of us, we are simply not willing to turn on our home air conditioning all day to achieve that – imagine the hefty power bills we need to pay at the end of each month?

Hence I took the opportunity to grow some cooler growing plants there. This is not surprising as I have noticed quite a number of people have realised this and started to buy such plants to grow them in their similarly air conditioned offices.

Because I cannot grow plants inside my biological laboratory where I worked, I have them growing on the sunny window ledge that was located near the pantry. Below is a picture of my flowering pelargoniums. I also had fuchsias, miniature roses and African violets too. All these plants do very well in the air conditioned environment where they flower non-stop!

But, such a colourful sight cannot be witnessed anymore on the same window ledge for more than a year already. As work has caught up with me in the lab daily, I have decided to give gardening in the office a miss!

Green Culture Singapore Feature Articles (Jan 08)

Just uploaded two feature articles for the month of Jan 08 on the Green Culture Singapore website.

We have one article contributed by a fellow member, Ling Ong, who wrote about her visit to the Chelsea Flower Show in 2006:

Visit to the Chelsea Flower Show 2006

It was an unforgettable journey and experience for Ling Ong who visited the Chelsea Flower Show in 2006. Read this mainly pictorial feature article contributed by her where she shared some of the interesting exhibits present at the Show.

URL – http://www.greenculturesg.com/articles/jan08/jan08_chelsea2006.pdf

The second feature article was contributed by me where I wrote about the beautiful rose myrtle plant. Inspired by the peach or plum blossom lookalike flowers it produces, I decided to write about it to let people know that it can potentially be used as the new Lunar New Year festive plant, perhaps for the next one…

Growing the Rose Myrtle for the Lunar New Year

Not a plant that everybody is familiar with, the rose myrtle is a delightful plant that produces peach blossom lookalike flowers that can potentially be used as a peach or plum blossom substitute for heralding the Lunar New Year in the tropics. Besides having ornamental value, this woody shrub also has medicinal properties. Read this article written by Wilson to find out more!

URL – http://www.greenculturesg.com/articles/jan08/jan08_rhodomyrtus.pdf

Root Awakening (9 Feb 08)

Another instalment of the Root Awakening has been published in yesterday’s papers. Hope it helped to shed some light to the questions posted by the readers.

Any suggestions or additions to improve the questions are always welcome. When we share, we also learn from one another. And we also helped others… :)

The Golden Lotus (Musella lasiocarpa)

Let me write about one plant that one may have spotted on sale in local nurseries for the Chinese New Year festive season some time back. 

Referred to as the “Golden Lotus”, it is one plant you either you like it or hate it. Some people think it looks wierd and out of this world. This year, however, there were less of these on sale this year at the festive plant market. 

This plant is not anywhere close in terms of relationship with the lotus we see growing in the pond. In fact, it is a closer relative to the true banana plant. What you saw as the “golden lotus flower” is the inflorescence of this banana ally. Scientifically known as Musella lasiocarpa, it hails from Kunming, the capital of Yunnan, growing up to 2,500 metres above sea level. It is also the only species in the genus Musella.

Sounds temperate and cold isn’t it? But I was quite surprised to read in this article published on AsiaOne.com which was written by my gardening friends from the Singapore Gardening Society, Victor and Gloria. In the article, they detailed their success in growing this banana in Singapore!

This is a piece of good news as this plant would not join the gang of festive plants that you buy-display-and-throw type. If you wanna buy this plant to try out next Chinese New Year, find out more by reading the article penned by Victor and Gloria via this weblink:

http://wineanddine.asiaone.com/Wine%252CDine%2B%2526%2BUnwind/Unwind/Gardening/Plants/Flowering/Story/A1Story20070519-5911.html

Below are two pictures that I took whilst I was walking through the nurseries during the period where plants for Chinese New Year were imported for sale:

 

The plant is often sold stripped of all its banana-like leaves, leaving only the bright yellow lotus-like inflorescence stuck on a thick pseudostem. Look out for suckers emerging from the base of the plant – these can be used as new propagation material.

The bees locally seem to like the true flowers of this banana ally. They can be seen in swarms in the inflorescence!

Chinese New Year Dinner with Cheow Kheng & Family

I was invited over to Cheow Kheng’s house for dinner this evening. This dinner had left a lasting impression on me. It was an unforgettable evening.

I didn’t expect to know Cheow Kheng more than just a collaborator from NParks in our quest to promote gardening. He is now more of a personal friend to me. Today is the first day of Chinese New Year. Frankly, I feel honoured for the invitation because today is often regarded as a day reserved for gatherings with immediate family members and relatives.

I totally enjoyed the spread of food prepared by Mrs Ng – the Bak Kut Teh (Pork Ribs Soup), traditional Heng Hua rice vermicelli and the black glutinous rice dessert… I especially like the vermicelli because it was so smooth and I was told by Cheow Kheng that they were handmade ones brought in from Kuala Lumpur… Besides the food, I had a great time talking to Cheow Kheng, his wife, Swee Imm and his relatives.

Earlier in the evening, I also got to meet Dr Easaw Thomas who won the top award for the last Community in Bloom competition for the Private Homes category, which was co-awarded to AsiaOne.com’s Editor, Irene Ngoo.

Dr Thomas is an inspirational man and his love for forest trees, which he shared, really made me think differently as to the use of trees in home landscaping. In addition, his ‘natural’ approach towards gardening, namely, the need to improve the quality of our local soil the natural way as well as to introduce beneficial wildlife and predators to the garden is something that I agree with. I have also managed to also take a picture with this great man.

Serangoon Newsletter (Jan 08 issue)

The bimonthly issue of the Serangoon newsletter for Jan 08 was delivered into my mailbox when I opened it this afternoon.

On the second page was the article which I wrote about the Recycling Garden found inside HortPark. The Recycling Garden in HortPark is, in my opinion, quite tastefully done.

This article in the Serangoon newsletter is more of a pictorial nature as you can see. Went down specially to HortPark one afternoon and took those pictures under the sweltering hot weather. But what matters is that the pictures turned out quite well.

Hope the residents of Serangoon can get some ideas of recycling their household items for gardening rather than dumping out into the bins during their annual spring cleaning… Reduce and recycle!

For those who are reading this current post during the Chinese New Year period, let me wish all of you a Happy Lunar New Year. May the Year of the Rat bring good luck and health to you and all at home!

Pendent Heliconias for Chinese New Year?

The Lunar or Chinese New Year is around the corner and the colours red and yellow (resembling gold) are highly regarded as the lucky colours by the Chinese. While many individuals are rushing to the nurseries to buy all kinds of potted festive plants such as various citrus and chrysanthemums and cut-flowers such as pussy willow that hail from temperate regions, why not try something different this year?

After having introduced to heliconias and after some ‘psycho-ing’, I have acquired a liking for these plants that hail from the tropical Americas. Heliconias can bear inflorescences that can be erect, pendent or contorted.

Those species and hybrids that produce hanging pendent inflorescences are especially graceful and beautiful. Because most are coloured in the hues of red or orange, these hanging pendents carry the Chinese’s auspicious colour for the Lunar New Year.

Take a look at the pictures I posted below and you should be able to understand what I mean… Some of the pictures have been taken quite some time back at Ang Mo Kio Landscape and Nursery which is well known to stock some exotic heliconias. Some others are taken at the Singapore Botanic Gardens.

Heliconia longissima

Because the bracts of Heliconia longissima are like almost perpendicular to the ground, don’t the inflorescence of this heliconia look like a string of fire-crackers?

 

Heliconia ‘Dinosaur’ (hybrid between H. pogonantha and H. mariae)

You either like this or hate the inflorescence of this hybrid heliconia. Some people think its awful looking. Some people think it resembles a piece of roasted meat (or pork).

Heliconia vellerigera

Ah…. The inflorescence of H. vellerigera is one of my favourites. It is unique because it is really furry to touch!

These first three heliconias are considered collector’s items and you don’t see them being planted in Singapore’s streetscape. It is also quite hard to buy cut inflorescences of these heliconias. You are not able likely to just get it at just any nursery. At most, what you get is a rhizome at quite a high price and you gotta wait a number of years (at least two) before you get a mature plant that will flower for you.  

Furthermore, for these heliconias, they are quite large-growing, especially H. longissima and H. ‘Dinosaur’ and hence you need a large garden to grow them. Their size and stature will surely command some attention. Fortunately, they are non-running heliconias. Incidentally, many of the more ‘high class’ heliconias don’t really ‘run’ all over the place.

Now, let me introduce another three heliconias that are slightly more common, but still as beautiful. For the first two, ‘Sexy Pink’ and ‘Temptress’, you can buy the cut their inflorescences from the florist. I don’t think they will go out of trend and people will like to grow them in their gardens.  

Heliconia ‘Temptress’ (hybrid between between H. chartacea and H. platystachys)

Quite a tall grower, H. ‘Temptress’ is a clumping heliconia that doesn’t really run all over the place. The only thing that some people don’t like about this plant is its naturally lacerated leaves. Still somewhat quite hard to find this hybrid in local nurseries.

 
 Heliconia chartacea ‘Sexy Pink’

Some like a sister to H. ‘Temptress’, ‘Sexy Pink’ produces pink, pendent inflorescences, a rather rare colour in heliconias. It is also a clumping heliconia and has naturally lacerated leaves. ‘Sexy Pink’ can be found for sale in local nurseries.

Heliconia rostrata

Last but not least, H. rostrata is something that we, Singaporeans, are all too familiar with. Its omni-presence in our local streetscape has earned this heliconia a ‘roadside’ status and people don’t really want it to be in their gardens. It can be found in flowering size on sale in local nurseries and is perhaps the most readily available pendent heliconia anyone can buy.

I have been told that there are running and non-running rostratas but I cannot be sure of that. There are several different varieties of H. rostrata and recently, an all yellow variety (oooo… a golden lobster claw eh?) has been found and not easily available and therefore, a collector’s item.

The Pigeon Orchid is flowering again…

Today, as I was walking from NUS through the Dover estate to take a public bus to go back home, I witnessed the many Dendrobium crumenatum plants that were in full bloom.

Commonly known as the pigeon orchid, it is perhaps the most commonest epiphytic orchid seen perching on the trees in Singapore. I reckon most of these have been ‘planted’ or so-called ‘re-introduced’ by the National Parks Board (NParks) into Singapore’s landscape.  

This orchid, unfortunately, because of its presence in most of the streetscape trees in Singapore, locals here have regarded it as an ‘roadside orchid’ and hardly anyone grows it in their gardens. This orchid isn’t particularly showy when not in bloom and looks like a big mess of pseudostems and leaves perched on tree branches.

Aunties prefer those colourful, gawdy cut-flower Dendrobium hybrids. Orchid enthusiasts, instead, grow what we call ‘collector’s orchids’ which mainly feature orchid species from other countries, which may well be ‘roadside’ orchids in their native countries where they may be seen just anywhere…

It has almost become common knowledge that the flowers of the pigeon orchid develop after prolonged wet weather. One saying was that the flowering was triggered by the sudden drop in temperature of 5.5 oC or more caused by a heavy downpour. The buds appear nine days after such a time. Such drastic temperature drops may only occur in one small area and hence it is not unusual to witness gregarious flowering of this orchid that cannot be seen anywhere else.

At the time of posting this blog entry, I have not been able to find any scientific study that have been done to understand the mechanism behind it. My scientific question – is it the drop in temperature or the rainfall that causes this sudden burst of blooms?

The small, white, dainty flowers of the pigeon orchid, unfortunately, do not last long and they look good only or a day or two. I was told that the flowers are strongly fragrant but while I was taking the pictures, I wasn’t able to detect any scent.

Distinguishing between Lemon Grass & Citronella

For a period of time, citronella was quite a difficult plant to find locally. Only lately, if I am not wrong did this plant become more commonly available in local nurseries. I may be wrong here since it was only recently did I attempt to find more about this plant, as it could have been ‘hanging around’ for a long time?

Anyway, I noticed some of the retail nurseries selling the citronella and it was wrongly labelled as ‘lemon grass’ instead. Oh well, I must admit that the two plants look very identical, only those into cooking or aromatherapy will know that this ‘lemon grass’ on sale is not real thing since the smell emitted after crushing the leaves is vastly different.

Citronella and lemon grass are both closely related species belong to the genus Cymbopogon and are members of the Poaceae, family of the grasses. The scientific names of the lemon grass which is used in cooking is C. citratus while the citronella that has uses as an insect repellent and fragrance industry is C. nardus. Citronella oil extracted from the leaves are used to make mosquito repellents, in fact.

So how can one tell them apart? One of the most obvious tell-tale signs is that citronella has red pseudostems while those of the lemon grass are green. The citronella also have slightly wider leaf blades compared to those of the lemon grass.

These two plants are the ‘must-haves’ in any medicinal or fragrant gardens.

Citronella (Cymbopogon nardus)

 

Lemon Grass (Cymbopogon citratus)

Cape Gooseberry is back…

Physalis species are members of the tomato family, Solanaceae, and most of us should be familiar with the bright orange, exotic-looking fruits that are used to decorate some types of cakes. They can also be found on sale in the chillers in some supermarkets too.

Fruits produced by this genus of plants are known by a large number of names. The name I find most suitable is cape gooseberry because fruits (which are technically a berry) of the Physalis are produced in  paper-like covers as if they are wearing capes on them! Morphologically, the cape is actually the calyx! 

In Singapore, I have been told that the larger fruiting Physalis species cannot be grown well here due to our much hotter tropical climate. However, there is one Physalis species, P. minima, that grows quite well here. It produces much smaller fruits and this probably how the specific name comes about. 

Physalis minima is considered a weed here because it can found growing in wastelands and no one really deliberates cultivates it. Sometimes it can find its way into the garden. I have seen this plant being offered for sale in some nurseries occasionally and the older folks who have lived in the kampong before often react in awe, wondering why a weed is being offered for sale! Singapore is now highly urbanised and many plants have been wiped out after development. I feel P. minima is one of them as it cannot be easily found growing in the urbanised areas of Singapore anymore.

Just recently, I noticed some new seedlings of this plant appearing in my community garden again. Below are some pictures which I took quite some time back. The new seedlings are growing in the same garden bed where some plants used to grow. They probably came from the seeds that were left over from the previous batch of plants. Birds have been reported to be able to help in the dispersal of the seeds of this species of Physalis after they have consumed the fruit elsewhere.

When ripe, the ripe fruits of this Physalis species are actually quite tasty as they are sweet on the tongue. I believe children will love it. More so, if they are fun to play because the fruits with their capes on can be squeezed a bit to cause it to burst like a balloon.

Unfortunately, this plant doesn’t seem to last too long and behaves much like an annual. After some time, the plant actually dies down. The branches are actually quite brittle and the plant definitely needs staking when it grows tall.