Saturday, 22 March 2008

Alocasia Macrorrhizos



This is one impressive beastie which will have your neighbours peering over the fence all Summer. There are many variations of Alocasia and you should make sure you get the right species as a lot of places label any of them how they please.

I have experimented with this plant somewhat and can safely say that it hates full sun. It does like it hot however, but sweaty hot rather than dry hot. Plant it out in the Summer and bring it in for the Winter.

I subjected mine to an unheated greenhouse 2 Winters ago that went down to -4c inside. The foliage melted (as expected) and I was left with a stump. I left it in the greenhouse over Summer and it shot back through the same stump. So it looks like it is pretty hardy to low minus figures at least !!!!

It likes to be fed and watered a lot in the Summer. One of it's funky features is the way it can shrug off water. Mist it, spray it, throw a bucket of water over it... this plant sheds every drop... it is awesome to watch :D

Thursday, 20 March 2008

Things about Rhapis Humilis



Some things which you may be interested in about this rare plant which I have discovered through experimentation would suggest that it isn't as easy to care for as the general consensus stipulates.

It does not like tap water. It does not like rainwater (NW England rain anyhow). These turn the leaves brown very quickly. It took me a while to figure this out, but the only water it does like is bottled water, especially French - Evian or Volvic :D

It does not like the wind. Wind destroys the new leaves while they are still soft. These new leaves then go brown and look very tatty.

It does not like direct sunlight, whether it is outside or behind a window. The outer leaves scorch very easily!

It does not like to be in too big a pot. Despite being a clumping palm it would seem that if you put it in too big a pot it will go on strike and stop growing.

It's main growth is in the early spring. New shoots pop up and existing shoots will put out 2 or 3 leaves. Throughout the Summer it's growth will be slow. This would suggest temperate preference.

I have found it a tough battle to care for this palm and if i had the chance to buy it again i would probably pass.

Beware B&Q

OK, we all know that as exotic gardening becomes more popular the superstores like B&Q are going to want to cash in on it. Last year I noticed them selling Phoenix Roebelenii as an outdoor palm. They have been doing this for some years now. While these guys can sustain some frost they really do not like it at all. Fleece will help out a little, but take things below -4c and you will have some real trouble. Although they look nice with their light feathery fronds you are well advised to avoid them unless you keep them in a pot and bring them undercover for the Winter.

Now, what's even worse is last year I noticed, to my horror, that B&Q were trying to pass of the very tender Bismarckia Nobilis as a hardy palm !?!?!?!! They were the silver forms (which are the toughest), but they will defoliate at 0c easily !!!! DON'T BE CONNED !!! B&Q were selling these at a HUGE 50 quid each too !!!! It was a complete laugh reading the pointless info cards they stick to their plants... "Needs protection from heavy frosts"... more like needs protection period!

Growing Patterns of Palms in the Winter

This Winter has pretty much passed by now. I monitored the growing behaviour of my palms during the Winter. I noted a low of -6c and about a dozen nights of -4 or below. Not bad really! However out of the various palms I have I can only say that there were 3 which continued to push out new leaves.

Nope, it wasn't the Trachys, not the Butias... it was the two Brahea (Armata and Edulis) and the New Zealand palms Rhopalostylis Sapida. I kind of expected R. Sapida to grow as they originate from temperate rain forest areas. I was surprised by the Brahea continuing to grow however!!!

Brahea are dry climate palms, used to hot dry conditions. NW Winters are very wet and very cool. The Armata pushed out 2 new leaves during Winter and the Edulis gave me 4 !!! It would therefore seem that these guys don't go dormant like most palms. The more I see the what the Brahea can do the more I like them. Waaaaay better than Butia and Trachys it would seem !!!!

Tuesday, 5 February 2008

Washingtonia Filifera – Doesn’t like getting wet !!!


It seems that suppliers of the palm don’t seem to care whether they give you a Filifera, Robusta or a mongrel of the two. It can be very confusing as at first sight they look almost identical to each other. However, from my own experiences with these palms they are very temperamental to the British weather conditions. Filifera can quite happily shrug off -7c so long as it doesn’t get wet. If you have rain followed by a measly -5c then it will defoliate... old leaves, new leaves, the lot will wilt, go brown and hang there looking very sorry for itself.

The year before I kept one inside the house for the Winter. Despite being ‘dry’ atmosphere lovers it decided to shrivel all of its leaves up into brown paper. I was really surprised by this behaviour?

This is a real pity as I think this is one of the more attractive fan palms with its dark orange trunk and light green leaves. On a good note though, it will return when the weather warms up. It will initially push out a mass of small leaves and then give you one or two big ones again. It can take it 2 years to start growing proper size leaves again.

This palm is a fast grower in the UK, as fast as the Trachycarpus family. However, I would not recommend it for the NW of England as we always get wash-out Winters which means this palm will not really thrive and seeing as bringing them indoors or leaving them outdoors during the Winter defoliates them unless you are a fan of totem poles I would not bother..

Strange baby Cycad growing behaviour!

During the Summer of 2007 I decided to give some newly hatched cycads a good soaking of heat in the greenhouse to try and encourage them to grow a new leaf. Some decided to respond. However mealy bugs decided they liked the taste of a particular species – Cycas Panzihuaensis – they quickly consumed the new emerging leaf before i even noticed they were there. The mealies didn’t bother the other cycads for some reason? Anyway, about 5 days later i saw that the same cycad had decided to put another leaf out!!!! Well this was a real surprise to me. I checked it for mealies and none seemed to be around. Well, within the next couple of days i went in there and saw the leaf had been chewed up yet again. This time however I thought to myself... “hmmm maybe it will grow another one?”... guess what... about 5 or so days later a third attempt emerged. This time the Cycad stayed with me wherever I went :D

This little escapade did get me thinking though... what would happen if i chopped emerging leaves off? I intend to try it out this Summer. I guess it will either stress the cycad out or... hopefully... make it grow faster. I know i can encourage new leaf production by defoliating grown cycads, but it never occurred to me that perhaps the same is true for baby ones too??? I’ll keep you posted.

Saturday, 2 February 2008

Clivia Miniata


Another awesome underplanter to tree ferns is the Clivia species. There are a few variations, but the C. Miniata is the most commonly available.
This can be planted out during the Spring, Summer and Autumn and brought back in for the Winter. You can plant it direct or sink it in pots.
The dark, thick foliage is very rich and contrasts very well with the brown trunks or light green fronds of ferns. During the growing season it likes to be kept moist and shaded. If the Summer sun hits this plants leaves then they will fry and never recover.
Clivia flower in the Spring, red, yellow or orange clumps. They spread mainly through suckers which can be separated into new plants, though I think they look nicer as a huge clump. They prefer to be on the dry side for Winter, so bring them in and forget about them.