Sunday, June 2, 2019

Observations at HortPark (and Elsewhere) on May 2019

I am taking the Certified Practising Horticulturist course that stretches over a few weeks (taking a few days each week) over at HortPark. When I say Hyderabad Road no-one knows it, but everyone knows HortPark.

A mistletoe attached to a (once) living brach of a tree. This is showing the cross section, and the haustoria seemed to have formed a "broad-head arrow" to penetrate into its host. Note the darker cells of the mistletoe, and the lighter cells of its host.

A look from the outside. Darker bark belonged to the mistletoe, and lighter bark its host.

I was exploring on mistletoes attaching themselves onto tree earlier here.

Kerriodoxa elegans (White-backed palm), a single species endemic to Thailand. It grows as an understory palm, and thus more suitable in shade.

Butterfly gardens attract bees as well. The lesson here is not to expect one type of insect (most people prefer butterflies) and reject the presence of the other.


The Hort Lawn, where event rentals and wedding photo shoots take place. They have installed the automated mower that I mentioned earlier here.

Note that the tenant (behind the fence on the left) has moved out and there does not seem to be a new one moving in. In 2015, the Hort Lawn was overhauled (which I imagine to some inconvenience to the tenant back then). And in 2017 when I attended a Kombucha making class there, NĂ“NG was the tenant.

 Floating islands that was on the irrigation pond were removed. They were overgrown with Cyperus papyrus and crowding the other species out.

Floating islands at Pang Sua Pond, Bukit Panjang. No Cyperus papyrus were used here, but mostly Cyperus prolifer.


 Chonemorpha fragrans (Frangipani vine), which is a great alternative as a native climber besides Tristellateia australasiae (Maiden's Jealousy). The origin stated on the label should have read "Singapore, India, and a whole lot of other countries". The leaves looked like that of Beaumontia grandiflora (Easter Lily Vine), but its flowers looked like that of a... Frangipani.




On the way to city centre, and I saw these tree containers along the centre divider at Esplanade Drive. Plumeria rubra and Tecoma stans - great choices as they are both drought tolerant. Diagram from NParks CUGE RTN 01-2017, showing a "downsized version" of the tree container that has an inner diameter of 1.3m and height of 1m.

Containerized Technology: Long Term Observation of the Growth Potential of Container Trees, Centre for Urban Greenery and Ecology, Research Technical Note RTN 01-2017.
There was only one RTN in the year 2017, and no more thereafter.

 Palms that are usually solidary could be nice as a "cluster" palm as well.
Shown here is Bismarckia nobilis 'Silver'

 A self-sown Bismarckia nobilis 'Silver' "cluster" at a plant nursery in Muar, Malaysia. I haven't seen them self-sown in Singapore, and this might be a thing to come.

Livistona chinensis (Chinese fan palm), which is usually solidary has three "branches" here.

 
Strelitzia nicolai (White Bird of paradise) and Tacca chantrieri (Devil flower), both flowering.

Felling of Eucalyptus alba and E. camaldulensis using the "Spider" cherry picker, excavator for grubbing, and Avant loader for hauling of logs.

 
 Tamarindus indicus (Asam tree) that I had wrote about earlier here, which is replaced by a younger specimen.

Hope that the trunk collar is not buried this time.

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