Sunday, 10 June 2018

Home Grown Exotics

Grow exotic houseplants from fruit and vegetables bought from the greengrocer

There are many fruit and vegetables we can easily buy at the greengrocer’s or the fruit and veg section of the local supermarket, that can be grown as unusual and exotic houseplants.

Pineapple flower

Homegrown Pineapples

The pineapple (Ananas comosus) is one of the best tropical fruits to try growing at home and with a bit of care it will even produce fruit.

I speak from experience, because many years ago when I was still living in Cardiff, I made the HTV News at Christmas with my homegrown pineapple. I was filmed watering my pineapple plant and talking about how I had cultivated it. I said I used soil from the back garden and water from the tap, and that I repotted it when the plant got too big for the pot it was in, but that was all I did. An expert from the Welsh National Botanical Centre praised my achievement, and I was proclaimed as the first Welsh pineapple grower.



All you need to do to follow my example, is to twist the spiky rosette part off from the top of a pineapple, and then remove the leaves at the base to leave a stump. Leave this to dry for a few days before planting by pushing gently into a pot of damp compost. If you are in luck, there may already be tiny roots sprouting from this stump before you plant it.

Once well-rooted the pineapple will grow into a large rosette of spiky leaves and after a few years, all going well, it will produce a flowering stalk right in the centre. Mine took five years to flower but that was in a house with no central heating in Wales! The tiny flowers are a pretty lavender shade and surrounded by reddish spiky bracts.

After the pineapple has ripened and been removed side shoots will form on the main stem. These can be removed for further pineapple propagation or if left on the original plant long enough, they can flower and produce a second crop. I managed to grow another pineapple like this.



Taro or Inhame

The taro (Colocasia esculenta)  is a root vegetable that is sold as “inhame” in Portugal, and ├▒ame” in Spain and the Canary Islands. The corms are cooked by baking, roasting or boiling, but what many people do not realise is that if planted these corms will produce a most attractive houseplant if given the chance. In fact, the taro is often grown as an ornamental plant known as “elephant’s ears.” It gets this name because it has large heart-shaped leaves.

Elephant's Ears

The taro likes a very damp compost and will grow submerged. You can often see these plants growing in fountains and water gardens. I have grown taro in a pot of compost I stood in a bucket of water.

Kiwifruit

Steve Andrews in the South Wales Echo

You can grow kiwifruit (Actinidia deliciosa) vines from seeds from kiwis you have bought. It takes a long time for the plants to grow big enough to produce flowers and fruit but it can be done. I managed this when I was living in Wales still and followed up my pineapple story in the local media with my success at harvesting kiwifruit in my back garden. I admit it took five years before I had any fruit on my vines but I felt a real sense of achievement when I had my first crop of seven kiwifruit and my picture in the South Wales Echo. If I can grow kiwis in Cardiff, think how much better they would do here in Iberia!

Avocado

Avocado Tree

The avocado (Persea americana) is another fruit that can be easily grown. Just plant the large pits in a pot of compost and wait for them to sprout. Many people think you need special techniques for getting them to germinate but I have never found this to be the case. Simply burying a pit in a pot of damp soil has worked for me.  Your homegrown avocado will make an interesting houseplant when it is young and can be moved outside in Iberia when it gets bigger. Eventually it will form a large tree.

Ginger

Ginger

Another easy plant to grow is ginger (Zingiber officinale). This root vegetable is commonly used as a spice for curries and other hot dishes, and in herbal teas. Fresh ginger roots or rhizomes are easy to find in supermarkets. They will often start sprouting green shoots when in storage, almost as if they are inviting you to plant them!

All you need to do is to break off sections and plant them in a pot of compost. The shoots will take a few weeks to really sprout but will then keep growing into a plant with long narrow leaves. You can harvest your first crop of ginger later the same year, and fresh ginger you have grown yourself is so much fresher than the ginger you can buy.

There are many more fruits and vegetables that will grow from seeds, pips or roots of shop-bought produce.  Why not see what you can get to sprout? It can be a lot of fun finding out what can be grown and what the plants actually look like!

NB: The text for this article was originally published in Mediterranean Gardening & Outdoor Living Magazine, Issue 22, February 2016.

The Cacti of Iberia

Cacti of Spain and Portugal 

Prickly Pears (Opuntia dillenii)

You will see cacti growing in many parts of Iberia, mainly types of prickly pear cactus, and in some places, such as the Canary Islands, they are so common that it is easy to assume they are part of the native species. They look just right for the semi-desert landscapes. But in fact, there are no endemic cacti in Spain or Portugal, though some species from the Opuntia and Cylindropuntia genera have become widely naturalised. There are actually as many as 20 different types of Opuntia recorded as growing wild in Europe and the Mediterranean, but we are looking at the ones found in Iberia, and the ones you are most likely to see.

Prickly Pears

Harvested Prickly Pears

Cacti in the Opuntia genus are commonly and collectively known as prickly pears. The name refers to their edible fruit, which are found budding from the large and very prickly pads. These cacti have large numbers of tiny spines or glochids that project and will detach easily from the small bumps on the cactus skin that hold them, and which are technically known as aeroles.



There are two main species of prickly pear seen in Iberia: O. ficus-indica and O. dillenii. The first of these is known in English as the Indian fig Opuntia and the Barbary fig. The plant is referred to as “nopal” in Mexican Spanish, and its fruit is a “tuna.” The flowers are red, yellow or white, and the fruits are green, turning yellow or reddish as they ripen. It has been historically grown as a food crop for thousands of years in Mexico. You need to carefully remove the spines on the tunas by rubbing in an abrasive material and also peeling the fruit. They are usually eaten chilled and resemble watermelon in flavour. The fruit are also used to make jams and jellies, and have been used in the production of alcoholic drinks too. You will often see them for sale on fruit and vegetable counters.

The green pads, or nopales, can be eaten too. Again, you must carefully remove the spines, and the sliced pads can be fried or boiled.
Prickly Pear Flowers

The species O. dillenii is also known as O. stricta, and in English it is called the erect prickly pear. It has lemon-yellow flowers followed by purplish-red fruit with smooth skins, though, once again they are protected by spines. I used to eat a lot of these fresh when I lived in Tenerife, and used to manage to safely peel them using my thumb and finger-nails, but it is a tricky procedure so cannot be recommended. The tiny spines are notoriously difficult to get out of you and they hurt! This cactus is actually regarded as an invasive weed in many parts of the world where it has invaded the land. All species of prickly pear spread easily from pads which have broken off from the parent plant but which then root where they have fallen.

Cholla cacti

A very prickly Cholla

Speaking of cacti that spread easily from pieces that have become detached brings me to the cholla cacti in the Cylindropuntia genus. In Spain and Portugal there are two species that are commonly encountered: C. spinosior and C. imbricata. The first of these is known as the walkingstick cactus or the spiny cholla, and the latter species is called cane cholla or chain-link cactus. Both species are well-protected with large numbers of the most vicious spines imaginable all over the sections of the plants. The spines will easily break off, and the sections of cactus can also be readily detached. My advice is be very careful with these plants, because the spines are really painful. Fall accidentally into one of these and you will regret it!

The cholla cacti come from Mexico and the southern states of America but have spread to many parts of the world, where like the prickly pears, they have become invasive weeds.  Although these cacti can be problem plants, they also make formidable fences. Anyone caring to ignore them is asking for trouble!



Peruvian Apples


In addition to the cacti in the Opuntia and Cylindropuntia genera, you may see the Peruvian apple cactus (Cereus repandus/peruvianus) growing in gardens, and also on waste ground in Iberia. This cactus is very tall and produces columns that can easily reach as much as 10 metres in height. It comes from South America but stands up to cold periods in Spain and Portugal well. This cactus produces spectacular cream-coloured flowers that open at night and are only open for the one night. The flowers turn into edible fruit, known as Peruvian apples or pitaya.

Besides all these cacti that might be encountered in Iberia, many gardeners introduce other species into community-used ground near their homes, and cacti often root when they have been thrown out, so you can at times find all sorts of surprises but none are native plants. Gardeners in Portugal and Spain often grow many cacti outside that in the UK are strictly houseplants. The hot summers and mild winters give us an advantage when it comes to cactus growing.

NB: This article was intended as my last contribution to Mediterranean Gardening & Outdoor Living Magazine but due to the co-editor's health, the publication has very sadly had to close down earlier than was hoped and has failed to find anyone to take over running it.