Monthly Archives: June 2009

Getting involved in the ‘Bear Fruit’ series

The Bear Fruit (B.F.) series 2009 is a collaborative effort between National Parks Board (NParks) and National Library Board (NLB). It is a process-oriented programme that provides a platform for amateurs and enthusiasts to be inspired and turn their gardening passion and interests into reality.

Stretching from June to July, this unique programme bridges participants to subject matter experts and resources to help them fully achieve their aspirations. A diverse group of 25 participants, ranging from CEOs, lecturers to retirees participated in this programme last Saturday. 

At the guided tour around the Terrarium Arcade.

The highlight of the series will be when participants make use of their newly found skills to design and build their very own terrariums. The completed works of the participants will be showcased in an exhibition at the Central Lending Library, and will subsequently be permanently exhibited at the Terrarium Corner at HortPark.

I am proud to represent my division in NParks to be the one who shared with B.F. participants good horticulture know-how. I hope I inspired them to strive to be better gardeners. The participants first gathered around HortPark’s Terrarium Arcade where I shared with them the novelty of a terrarium, how it works, steps they need to take to make one, as well as, maintenance they need to do so that their set-up will be a successful one. I was grateful to one of the participants who handed me some tissue papers that I used to wipe my perspiration (the hot and humid weather then wasn’t too helpful!).

Sharing indoor gardening know-how at the Lifestyle Corner.

After the gathering at the Terrarium Arcade, all of us adjourned to HortPark’s Lifestyle Corner where I brought all participants on another guided tour. There, they got acquainted with various indoor plants, learned ways on how they can grow them at home successfully and introduced to them various vertical gardening concepts.

Basic gardening know-how talk at the Flower Room.

After lunch, the participants sat in the Flower Room for a talk where I gave them an introduction on basic plant care. I went through with everyone the factors that affect plant growth and recommended all to grow the right plant for the right location so that success rate is higher.

I believe there is no such thing such as ‘green’ or ‘black’ fingers. All we need to know is to understand what a plant needs and as their care-taker, we must be able to provide environmental conditions that are conducive for its growth.

Jean’s very well-received talk at Bedok Public Library.

The talk lasted slightly more than an hour and afterwhich, we set off for Bedok Public Library where participants were invited to sit in a sharing session entitled ‘Basic Plant Propagation’ that was conducted by my colleague, Jean Ang.  In the talk, Jean demonstrated the various methods that one can use to make more plants. The methods she introduced include crown division, stem- and leaf-cuttings, propagation via stolons and seed sowing. It was a great talk as Jean ensured the session was straight-forward and presented bite-size information that was easily understood by novices.

Root Awakening (6 Jun 09)

 In the first instalment of the Root Awakening column for June 09, three gardening queries were given answers. The first was about pitcher plants and how to increase the number of pitchers that are produced by the plant. Unlike normal plants, it is important to note that pitcher plants are carnivorous plants that do not require frequent fertilisation like the common plants we encounter.

In fact, overfertilisation can cause plants to stop producing pitchers and lead to the production of extra large and lush green modified petioles (the so-called ’leaves’) without pitchers. Some sensitive species can suffer from burns and die away. In general, pitcher plants do fine without added fertiliser. Humidity and light must be sufficient for them to produce pitchers. Grow only the lowland species as highland ones may not do well here.

The second question was about the growing of orchids and the appearance of white spots on the leaves of the plant. White spots can appear on leaves can be due to fertiliser burn when droplets of overly concentrated fertiliser salt solution get onto them. If one wants to feed plants via foliar feeding, it is best to do so using a diluted dose of the fertiliser solution and spray it on a cool day.

The third and last question was about a caladium that was infested with aphids. Water jets to wash these tiny pests away will only work if the population is small. Larger ones require chemical control. I always recommend the use of neem or white summer oils that can be mixed in water and then sprayed onto the plants. These two pesticides are relatively non-toxic and environmentally friendly compared to synthetic chemicals.

Gardening Talk @ Thomson Reuters

I was invited to Thomson Reuters’ Xtra Louge at Science Park Drive on Friday afternoon to give a gardening talk to its employees. June 5 happens to be World Environment Day and the company took the opportunity to launch their Singapore Green Team. The Green Team is an employee-organised team, which actively looks for new and different ways to help the environment and to inform fellow employees about environmental issues.

 In my talk, I shared with the employees from Thomson Reuters on how they can bring greenery into their indoor working space. I touched on three most important environmental factors that need to be taken note of to ensure success in gardening indoors. The information that was shared is also applicable to growing plants back at home. As there are requests for my slides, I intend to turn the information into a feature article that will be put up on the Green Culture Singapore and this gardening blog soon.

Before I left, I took the opportunity to have a photograph taken with Ms Gill Murdoch, a Thomson Reuters correspondent who extended the invitation to me. It was nice catching up again to find out how each of us is doing at present. I first met her in 2007 in an interview to write a story on high-rise gardeners for Reuters (then).

A pretty vine to grow

Mexican flame vine is a pretty flowering vine that is still not very widely grown in Singapore at present. Botanically, it is known as Pseudogynoxys chenopodioides currently. It is a member of the daisy family, Asteraceae and was previously referred to via a synonymous botanical name, Senecio confusus.

This tropical vine is valued for the generous bunches of vividly coloured flowers it produces. Daisy-like flowers are produced in a bunch where they first appear bright orange and gradually darken until they are red before they fade away. When fully opened, the ray florets of each flower are reflexed backwards, making each flower look like an umbrella that has been blown inside out on a windy day!

This vine is herbaceous to start with that gradually turns woody with time. Each leaf on the vine is shaped like an arrowhead with serrated edges and as a result, one can mistaken this beautiful vine to be the locally invasive vine, Mile-A-Minute Weed (Mikania micrantha). Dark green in colour, the leaves form a background where the vine’s fiery coloured flowers can be effectively shown off. In some occasions, the leaves are seen to take on a purplish tinge. The reason behind this observation is not clear at present. It maybe due to nutrient deficiency.

After the flowers fade, the plant goes on to produce seeds and expected of a member belonging to the daisy family, the Mexican flame vine’s seedheads that resemble those of a dandelion’s. Each seed has some ‘fluff’ attached on one end which help them to be dispersed by wind.

Such a mode of seed dispersal may ring an alarm in some of us, because it reminds us of how the noxious weed which we call lalang here (Imperata cylindrica) spreads. To date, even though the Mexican flame vine sets seeds in Singapore, it is not observed to spread to new areas via this dispersal method.

HortPark is a good place to visit to see how the Mexican flame vine can be used in a garden landscape. There, it can be found growing on the Carpark Garden’s trellises. In the same way, one can grow this vine up a trellis at home or allow it to climb on a fence or low swing and so on.

In terms of location, grow the Mexican flame vine in a sunny place so that production of flowers is ensured. It is reported to be not particular about soil conditions but it is best to grow it in a well-drained location with moisture-retentive and fertile soil. Do not over-fertilise with plant food that is rich in nitrogen! A plant that has been fed excessively with nitrogen will concentrate on the production of vegetative growth over flowers!

Water newly planted, young vines regularly until they become established. Established vines can take care of themselves as they can be quite drought-tolerant. Plants grow at a manageable pace and can be cut back to check its growth but do note that they flower on new growth. Hence excessive and overly frequent pruning will set back flowering substantially. The Mexican flame vine is most easily propagated by stem-cuttings. Stems that have rooted on the surfaces where they grow on can also be cut and planted separately.

Home Concepts Magazine (June 09)

For this month’s Garden Treats column in the Home Concepts magazine, I contributed an article entitled ‘Plants for the dry season’. Now is the month of June and in Singapore, it is expected to be a dry and hot one. This hot season is expected to persist until August and would entail more work in the garden. More frequent watering is required to keep up with the thirst of our plants and mulching will come in handy now to reduce the rate of water loss and to keep plant roots cool and moist. 

In this month’s article, I took the opportunity to introduce some of the drought-tolerant plants in HortPark’s Silver Garden. They are expected to look their best during this hot and dry period. Many of the plants in this particular theme garden possess leaves that are silver or grey in colour because they are covered with either a dense mat of fine hairs or coated with a waxy substance, which confers plants the ability to withstand short periods of drought. The coating help to reflect solar radiation and reduce moisture loss.  

Look forward to see the pictures and read more about the five plants that are being featured in the article. They include variegated lily turf plant (Ophiopogon jaburan ‘Variegata’), ash plant (Leucophyllum frutescens), bird-of-paradise plant (Strelitzia reginae), Bismarck palm (Bismarckia nobilis) and rose myrtle plant (Rhodomyrtus tomentosa).