Lichen Glowing

Lichen has always fascinated me. Ever since I was a small child there was something intriguing about lichen, I just couldn’t put my finger on what it was. It comes in a variety of colours and shapes, some look like tiny delicate flowers (they are not flowers), others look like bizarre coral (they are not coral), and others look like an unsightly mess. 

Lichen seems to grow in some of the most inhospitable, unlikely, and sometimes unbelievable places. Lichens are a pioneer species, often colonising a barren rock somewhere, paving the way for moss and eventually higher vascular plants to start growing. 

Different lichens 

When I was younger there were a few hills that were covered in old abandoned mines. Very little grew in these places as the top soil was gone and they were just rocks and sub soil that had been dug up by hand a hundred or so years ago in gold rush times. Some of these places were covered in thick beds of lichen. I used to scrape some of this off and take it home to bury in the vegetable garden. I figured it had probably liberated some of the rock minerals that may be useful for my vegetables. Now I am older I think I was onto something, on the other hand it may have contained high concentrations of heavy metals and other toxins, I will never know either way.

Lichen often slowly dissolves the rock they are growing on and releases minerals that were locked up and other organisms can use them. Some types can also absorb heavy metals and other toxins and can be used in bioremediation. Different types of lichen grow on the trunks of different trees. For years there has been debate among horticulturists whether or not lichen is harmless to apple trees or if after the lichen reaches a certain density that it can cause any issues.

Some types of lichen are extremely slow growing, while others seem to almost grow while you are watching them. Some can take extreme heat and dry, others can be frozen solid for months with no ill effects. Some lichens are simple to grow, some people might say they are almost impossible to kill. They can be hot glued onto surfaces or even mashed up and painted on to colonise a larger area quickly. Some people paint them onto gates and artworks to give a new creation an aged and distinguished look. I have seen some growing in interesting low maintenance terrariums. Yet you won’t often find lichen for sale in garden shops or online.

Another fascinating thing about lichen is that they aren’t one organism, they are two or more. Lichen is a combination of fungi and algae living in symbiosis, with each organism benefitting from the other. The way they reproduce and disperse can be rather bizarre and intricate, but I am not going to talk about any of that in this post.

As I said, lichen is fascinating, but it gets better. So much better, and that is what I want to talk about in this post.

Lichen glows in the dark but it isn't bioluminescent. 

If you turn out the lights lichen won't glow, they are dark just like everything else. Nothing to see here, move on, they are boring, go do something else. Put lichen under an ultraviolet light and it is an entirely different story.

Most lichens will fluoresce under ultra violet light, different types will be different colours and different intensities. Some are pretty uninteresting, they kind of glow a little. 

Others glow bright orange, or bright green, or any number of other incredible intense colours. Some lichens have one part that is one colour and other parts that glow another colour, others will have one part that glows and other parts that do not glow.

My photo didn't work, this was bright orange under UV light

 
Some types glow very bright under UV light and are incredible to see. These lichens tend to fluoresce under UV light alive or dead. This means you can plant out a terrarium with these more impressive lichens and even if the conditions are not to their liking and they all die they will still look unbelievable under a black light. 

The one on the right glows orange but didn't show in the photo

Another fun thing that can be done is to set up an enclosure for something else that glows under UV light, and include different lichens.

Scorpions fluoresce under UV light, they look amazing and I am unable to capture this in a photo. I would not leave a UV light on them the all the time as over time they lose some of their glow and they aren’t really fond of UV light. Putting the UV light on every now and again when you really want to show them off is fine.

If there are lichens that fluoresce bright yellow or orange or green, as well as a scorpion, the enclosure can take on a look that is impossible to describe but is a sight to behold. 

All scorpions have a sting, but none of the Australian scorpions are deadly to people. Some species are certainly grumpier than others, some are more laid back while others are very fast, and some species are far easier to raise than others, so not all are suitable for beginners.

Scorpions are a fascinating animal, they give birth to live young and the female carries the young on her back for some time. Another interesting thing is that adults and young of many species fluoresce different colours under ultra violet light. 

Scorpions shed their skin to grow. I have an exoskeleton from a baby scorpion I had that shed its skin in the year 1999 or 2000, this will still fluoresce when I shine a black light on it. I think that is absolutely remarkable after all this time. If I kept a black light on it all the time it would eventually grow dim and lose its glow, but still glowing after more than twenty years is just incredible.

Baby scorpion exoskeleton 

The same scorpion exoskeleton under UV light 

Drosera burmannii

Drosera burmannii is a small annual sundew that is native to warmer parts of Australia.   

This species has snap tentacles, which are longer tentacles on the edge of the leaf which flick prey into the sticky tentacles further in the leaf.  These are meant to be the second fastest snap tentacles of any species, and they can move very fast.

Ever since I saw a picture of these I wanted to grow them.  I think they look really cute, plus I found the concept of snap tentacles to be alluring.  They produce a lot of seed and I am told they are so prolific at self seeding that they can become weeds in carnivorous plant collections.  

Drosera burmannii sending up a flower stalk

One day I bought some seeds of Drosera burmannii.  Like all sundew seeds, they were tiny.  

I grew the seeds, the seedlings looked great.  Then winter came and the seedlings all died.  Apparently this species does not handle cold weather.  Not just frost, but low temperatures above freezing made them die.

The following spring some more seeds in the same pot germinated.  By this time I had planted some tiny venus flytrap offsets in that pot.

This time my plants flowered and produced seed.

Drosera burmannii and venus flytraps

The snap tentacles really can move fast.  They do not have dew, instead when triggered they flick up pretty fast and throw prey into the sticky tentacles.

I have a little trouble growing these.  If they get too hot they die, if they get too cold they die.  They are only annuals so if you wait long enough they die.  I have no idea if I could grown them from cuttings, but assume the cuttings would die from cold before maturing.

D burmanii mature plants

That being said, I really like Drosera burmanii.  They are small and cute, but not too small.  The leaves are nice and round, but not too round.    

D burmannii full size plant

Hopefully one day I work out how to grow these properly and I can have a lot more of them.  Until then I will do my best and hope that they set seed for the following year.

In summer I should have a few extra plants available for swap or sale.  I am not keen on posting these just yet, so would be limited to people who can pick up from the Canberra region.  If I do have any extra plants they will be listed on my for sale page.

Drosera burmanii and venus flytraps

Ultra Violet torch

Recently I bought a small UV torch.  Mostly because I want to look for scorpions, but also because a lot of things look incredible under ultra violet light.  

While I have no way to measure or confirm this for myself (and have to go off what it said on the order spec sheet) this torch emits light in the range of 365nm 395nm.  

Anything below 400nm is often referred to as invisible, but that isn’t strictly true.  In small torches like this there is always a trailing off of light to the edge of the visible spectrum.  The 365 emits a dull bluish light that is almost invisible to the human eye.  The 395 emits a blue purple light that is more easily seen by the human eye.  

If it only emitted invisible light I would not know if my torch was ever working, so I find that the little visible light they produce is a good thing.  This little torch runs off three AAA batteries and can make things glow intensely even from a reasonable distance.

Parts of corn stalks fluoresce under UV light 

There are a bunch of things around the house that glow under UV light.  Some plastics glow, while others do not.  I can't work out by looking at them which will and which won't.  Interestingly some white paper glows intensely, and other white paper does not.  Some fabrics glow, while others do not.  Under UV light my daughters' room looks somewhat like what I imagine a fairy princess rave party would look like.

Some clear plastics glow, some white ones glow, and some of the dark colours glow.  Below are some photos of things under UV light as well as under normal light for comparison.  

I can't take photos that really look the same as the UV light looks, my phone alters some of the photos and makes them less bright, but this gives you a decent idea of what we are seeing.

A plastic jewel

Some plastics glow, but not others

The plastic container on the lower shelf looks the same but did not glow

My little pony under UV light

My little pony under normal light

This glows a lot more in real life

The same bottle 

Some foods also glow under UV light.  Some things I would have guessed, such as milk, while others took me by surprise.

Honey under UV light looks cloudy

The same jar of honey under normal light

Peanut butter under UV light

Peanut butter under normal light

Ripe bananas under UV light - not a great photo

The same bananas under normal light

White sprinkles glow

I took the kids for a quick walk around the yard to see what would glow under UV light.  We found something under a log that glowed which I think was eggs of something.    

One thing I found interesting is that some spider webs glowed.  No other spider webs glowed, so I think this one had an egg sack under it.  Once the weather warms up and more things are active I would like to see if all spider egg sacks glow, or if it just some species.  I have a feeling that most do not glow.

This spider web glowed, most others do not

As we were walking past the guinea pig hutch something glowed brightly.  

I had a closer look and it was part of a corn stalk.  I wasn't sure if it was due to guinea pig urine, or if corn stalks normally glow under ultra violet light.  

I noticed something in the guinea pig house glowed brightly

This photo does not show the colour, but the corn stalk was bright yellow/green

Glowing corn stalk under ultraviolet light

I still have some corn in the garden that is standing from last season, so we went to have a look at it.  To my surprise, parts of the corn stalks glowed green/yellow, other parts glowed bright blue.  Some of the corn stalks glow intensely under UV light.  I looked on the internet and have not been able to find any other mention of corn stalks glowing under UV light.

To be honest, I thought the corn looked a bit creepy under UV light.  Blair witch style creepy...

I am interested to see if corn stalks glow when they are alive and growing, or if it is only once they are dead.  It may be that there is some fungus or something breaking down the dead stalks that makes them glow.  I don't know yet but I plan to find out in Summer when I have new corn plants growing.  

Corn glowing under ultraviolet light

My photos don't do it justice

I need to look around and see what else glows under ultraviolet light and take some photos.  I really should also put up a blog post of scorpions under ultra violet light because they look incredible.

Heirloom Russian Tomato Varieties

I grow a lot of different varieties of tomatoes.  Some are very old heirloom tomato varieties, while others I am developing myself.  

Some of the tomatoes I grew 

Some of my favourite tasting tomato varieties are old Russian heirloom varieties.  As a generalisation, Russian tomatoes have been bred for rich tastes and high productivity.  There are very few heirloom tomatoes in Australia that can rival the flavour of the old Russian varieties.  

I always used to be under the impression that Russian varieties would be quick to ripen and not mind the cold (unless there is frost) and perform well with short days with only weak sunlight.  From what I understand now, that is not always the case as many Russian tomato varieties were developed for greenhouse culture.  That is ok as they make up for any short comings in having a deep and often complex tomato taste that is hard to beat.  

Unfortunately I have not grown very many heirloom Russian tomato varieties.  I would like to grow a few more of them as their taste is often superb.  Some of the Russian tomatoes I have grown are listed below.

I like tomato season 

Japanese Black Trifele - Yaponskiy Trufel Chernyyi   Японский трюфель

Tomato - Japanese Black Trifele

Japanese Black Trifele is a great Russian heirloom tomato and one of the few varieties that I will grow each and every year.  They produce mahogany brown, pear shaped fruit, that is often green on the shoulders.  The size and shape of the fruits varies a little even on the same truss.  Apparently it was named 'Japanese' to make it sound more exotic, but was developed in Russia and it is a commercially produced tomato in Russia.  These produce a large yield for me every year under different conditions, and they taste incredible.  They are great raw or cooked.  This plant has potato leaf and is indeterminate.

Malakhitovaya Shkatulka - Malachite Box - Малахитовая Шкатулка

Tomato - Malakhitovaya Shkatulka

Tomato - Malakhitovaya Shkatulka

Malakhitovaya Shkatulka is another great Russian tomato.  The size and shape of the fruit lend it to slicing for sandwiches, and it goes well in a salad.  Everyone who tastes this has loved it.  It is difficult to tell when they are ripe from a distance, but you are close enough to touch them it becomes pretty simple.  They tend to have small yield in my garden, I wish that it was higher yielding as they taste so great.  It is often said that Russia does not produce green when ripe tomatoes, often when being sold in Russia it is listed as having yellow skin.  I don't care how you describe it or what colour you want to call it, this variety tastes great.

Giant Siberian Pink - Sibirskiy Velikan Rozovyi - Сибирский Великан Розовый

Tomato - Giant Siberian Pink

Giant Siberian Pink is a good tasting Russian tomato that produces very large, mostly round, pinkish fruits.  This variety produces firm flesh, and has a decent number of seeds which makes seed saving easy.  This plant produced a medium to large yield (medium number of fruit, super large sized fruit) over the season.  Being a large fruited tomato it does not ripen early in my garden.  

Little Oak Like - malenʹkiy dub, kak   маленький дуб, как 

Tomato - Little Oak Like

Little Oak Like is a great tasting heirloom Russian tomato that is far too rare.  It is only a small plant, maybe a foot tall and wide.  The red round tomatoes have green shoulders and taste great.  Little Oak Like tomatoes have the deep, rich, old fashioned tomato taste that people think of when they think of home grown tomatoes.  This is one of the best tasting red tomatoes I have eaten.  This plant has a large yield over a reasonably long season for a short determinate tomato.  It is usually among the first tomatoes to ripen in my garden.  The fruit are a little small, but more than make up for that by tasting great.

Black Russian - Chernyy Russkiy - черный русский

Tomato - Black Russian

Tomato - Black Russian

Black Russian is probably the most famous variety of heirloom tomato in Australia even though it is one of the worst.  Black Russian tomato is by far the worst Russian tomato I have ever grown!  Crops are small, the fruit cracks often, and it lack any real depth of flavour that you expect from home grown tomatoes.  If you disagree with this I dare say you are either comparing it to the ethylene ripened cold stored garbage from the shops, or with other home grown insipid varieties such as 'Roma'.  Let's face it, a home grown Roma will always taste bland compared to a home grown flavoursome variety.  The colour of the black Russian tomato fruit is amazing inside and out, and they are a good size, unfortunately the taste, yield, and time it takes to mature always let it down severely in my garden.

Various tomatoes I grow

I often sell seeds saved from my open pollinated organically grown plants through my for sale page.  If you are interested please have a look.  

If you are Russian or have a Slavic background, and know about some other traditional vegetable varieties I would love to hear from you.  I would be interested to grow some more Russian vegetable varieties, not just tomatoes but other vegetables as well.  I would love to grow an old Russian beetroot variety but seem unable to find the names of any.  

If you grow some other Russian tomato or other Russian vegetable varieties and would like to swap some seeds or sell me some seeds please also let me know.  Either leave a comment on this blog post or my email address can be found on my for sale page.  

Daffodil breeding - first attempt

I have done a lot of vegetable breeding over the years.  I have developed some excellent new varieties of tomatoes, potato, corn, berries, herbs, and other edible things.  To a far lesser extent I have dabbled in breeding of ornamental plants.  

One of my first efforts at breeding daffodils is below.  Unlike vegetables, growing from seed is tricky, but breeding spring flowering bulbs does not take too long.  

To create a new variety of daffodils you do not have to spend years and produce/cull many generations (usually 7 to 10) to stabilise the line.  On the other hand, once you have a new variety of daffodil that you like, the bulbs are divided, bulbs produce exact genetic clones, and you have new variety.  The hardest part is getting daffodil seeds, and germinating them into seedlings.

My new daffodil

Seed grown daffodil

This daffodil variety produces small flowers that are highly fragrant.  The numbers of flowers per stem vary a bit with 8 or 9 being most common.  They seem rather vigorous, and happily divide in my garden.  Which I like!

Not every bulb produces a flower stem every year, I think that is pretty normal for daffodils.  Larger bulbs produce flowers, smaller bulbs don't.  I think if I gave them better soil and less competition I would probably get more flowers and more bulb division, but I don't have the space for such things.  Even with poor soil and a lot of competition they are performing well.

This daffodil makes an excellent cut flower.  They have multiple fragrant blooms per stem.  Each cluster lasts a long time in a vase.  Each flower is small, around 3cm, the stems grow to around 40cm tall, they could probably be taller or shorter depending on the conditions.

They produce flowers early this year, opening the first few days of August.  This year winter has been mild, so they may open a little later on a cold year.  Even if they open later they are still one of the first daffodils to bloom in my garden.

Each flower is about 3cm

Stems are about 40cm long

The bulbs do divide quickly so it should not take too long to build up numbers of these daffodils.  

Being seed grown they are genetically different from any other variety around.  I need to look around and see if they are noticeably different from other varieties.  If they are I need to name them.

If I ever have enough to sell I will list them on my for sale page when the bulbs are dormant.

Purple asparagus spears

I grow a few different varieties of asparagus, most I grew from seed.  Asparagus is a perennial vegetable that can produce for decades.

By far my favourite tasting asparagus variety is an old heirloom variety called Precoce D'Argentuil.  It has spears that are mostly green with a little bit of purple.  It is a large vigorous variety, which is great for home gardeners.  It is far better than anything you will ever buy from the markets.

I also like purple asparagus.  It is often sweeter than the green varieties.  For me they usually produce fat and high quality spears.  I do find purple asparagus to be less productive than the green varieties, so it is a bit of a trade off.  I grow several varieties of green and purple asparagus, so get to eat the ones I like best.

Below are some photos of my purple asparagus.  I have put a green spear next to them for comparison.

Purple asparagus next to a green one for comparison

The spears do get much deeper purple colour than this, but I didn't pick them until a bit late so they started to get a bit long and get a bit more green.  As purple asparagus spears open out they turn green just like any other variety.

I normally stop picking when they spears get a bit thin so the plant can gather energy for the next year.  Some years I keep picking a bit too long.  The spears in these phots are a bit thinner than I would normally pick, but as long as I don't pick this hard the following year the plants don't seem to mind.

You can also blanch the spears and force purple asparagus to produce white spears.  This is very tender, and not hard to do.

Purple asparagus 

Purple asparagus spears

I have a few different purple asparagus plants.  Some are male, others are female.  I prefer female plants as the spears are fatter, better quality, and the plants more productive.  Male plants are good too as they do not produce berries and you don't have to remove seedlings to prevent them from crowding the bed.  As my plants are seed grown I just have a mix of both male and female, for most home gardeners this is not an issue.  

I do sometimes sell asparagus crowns of different heirloom varieties.  I normally sell dormant crowns of one or two year old plants late winter or early spring.  I do not know which are male and which are female.  I tried to tag them while they were in flower but by the time they are dormant I tend to lose track of which is which.  When I do have them for sale they are listed on my for sale page.

Vietnamese coriander flowering

Vietnamese coriander (Persicaria odorata) is an edible perennial herb from south east Asia.  I wrote an earlier post with Vietnamese coriander growing notes.  This is a very simple to grow, productive, and great tasting edible herb.  This is not related to coriander in any way, but can often be used in a similar way.

Vietnamese coriander loves heat, humidity, water, yet strangely does not appear to like full sun all day (although this may just be in my climate where humidity is too low).  For me leaf production is best when it gets part shade.  This is easy to provide by growing it next to something taller.  

I often grow it in a container with no drainage holes, I have soil or leaf litter in the bottom, and a few cm of water on top of the soil.  I have grown it in a pot of soil, where it does well.  I have also seen people grow this in their vegetable garden.

I have always been told that this plant will not flower outside the tropics, but that is not true.

I first got Vietnamese coriander when I lived in semi-arid central west NSW, and it flowered there.  Now that I live near Canberra with its hot dry summers and cold winters (cold by Australian standards) it still flowers.  Most years I don't get many flowers from this plant.

This past year the weather was odd, it was mild and wet all summer.  My Vietnamese coriander flowered more than it ever has before!

Vietnamese coriander flowers

The flowers appear at the end of the growing stalks.  Many flowers are on each stem, they open sequentially from the base up to the tip.  The flowers don't really smell, or if they do I could not smell them over the foliage.  Flowers last a few days before dropping off.

Unlike many other herbs, the leaves do not appear to turn bitter or have any off flavours when flowering.  I haven't tried eating the flowers so don't know what they taste like.

Vietnamese coriander flowering

I have never seen any seed set.  I m not sure if it needs another clone to be able to cross pollinate, or if it in unable to set seed, or if my climate is all wrong for seed production, or if we do not have the right pollinators, or if there is some other issue at play.

I have had this plant for many years now, it grows so easily from cuttings.  Vietnamese coriander always grows prolifically for me, and produces many large leaves.  As such I don't need any true seed to be formed.

For me these grow best in spring, summer, and autumn.  My plants don't love frost, and growth slows during cold weather.  

I am growing some outside where it gets lighter frosts, these plants have reddish leaves over winter that are small, bitter, and not really worth eating until the warmer weather returns.  Once the weather warms they grow greener leaves that have no bitterness.

I grow some in my unheated greenhouse, the leaves of these are green and lush all winter and all year.   At this time of year they lose the arrow shaped markings on their leaves as the sun is not strong enough.  That doesn't bother me, they still taste great.

I also have some growing outside in my goldfish barrelponics, this is lush productive all year long.  The ones in the barrelponics has by far the most explosive growth and is not even slightly bothered by winter as the barrel water must keep it slightly warmer.  Over summer it can suffer slightly from direct sun, but there is always some that gets enough shade that it is still fast growing and great to eat.  Between this and water cress the goldfish water stays clear and clean.

If you don't grow Vietnamese coriander you should.  Sometimes plant nurseries carry them, but it seems to be a bit hit and miss.  I also sell organically grown plants of these through my for sale page.