Tag Archives: Frost Hardy

Pollinating a rare Cycad: First phase, collecting the pollen from the male

Male cone of Cycas multifrondis Canarius | Sunday July 22nd, 2018 |

A male cone is ready!

We grow different species of cycads as mother plants in order to obtain seeds for propagation. Here we show the mountain form of Cycas diannanensis. In february 2018, as our plants are about 8 years old, the first specimen achieved maturity and it is a male. Once the tall cone is fully exposed and developed it starts to shed yellow pollen.

Here in Tenerife, February is cool and wet. No females are ready, but one of the adjoining plants is now showing the tip of a female cone, which is much shorter and wider. It will be ready later, probably in mid-summer when the hot weather will make it grow faster.

So we collect the pollen from the male Cycas diannanensis ‘Mountain Form’ and store it for a later use. The pollen is put in a paper envelope and gently dried. It has to be refrigerated in order to last for months. Once the female cone will be ready we will try to inject the pollen inside to make the pollination happen. Our goal is to produce seeds and seedlings for our website www.canarius.com

Pollinating a rare cycad:

What is Cycas diannanensis ‘Mountain Form’ ?

rare male Cycad

Cold-hardy cycad from high elevation, with broad leaflets. Leaf margins are flat or undulate, not twisted on the rachis. It is a widespread species in China, distributed through central and eastern Yunnan, often found on steep slopes high on ridges, between about 600 and 1800 m. This species was described in the 1990′s. Leaves are bright green or deep green, highly glossy, 140-330 cm long. Cycas diannanensis is another frost hardy species.

This particular form of Cycas diannanensis was formerly named by Chinese botanists Cycas parvulus, known from the material collected around Mengdian village.


The cold-hardy Gomera-1 Mango Tree

Canarius | Sunday May 29th, 2011 |

Gomera-1 is a hardy variety of Mango suited to a coastal Mediterranean climate. It is used as a rootstock for grafting other cultivars of mango, because the roots of Gomera-1 grow better in colder or dryer areas and improve the cold-hardiness of the plant.

Two Mango Gomera-1 trees in a poorly irrigated terrace in Southern Anaga, Tenerife.

This variety of mango is well adapted to the environment of the Canary Islands. It can be seen thriving in windy areas with rocky soils. It is unscathed by cool and wet winters and fruits very well and regularly. It is found on many islands and it was probably, initially brought from Cuba. The name Gomera refers to the island of La Gomera, one of the seven islands of our archipelago. This is where Canarian agronomists collected the first samples to study this mango which is quite common in the rural areas of the islands.  Fruits are yellow, small to average size (250 g average), with  very good flavour, sweet, aromatic, with a high content in fibres.

Yellow fruits of the Cold Hardy Canarian Mango named Gomera – 1

Cultivation

It needs just the same conditions of any other mango trees. It is reproduced from seed. As a polyembrionic Mango, 90% of the seedlings are true to type. Adult trees are able to flower up to 3 times a year. If it is too cold or wet, they will loose the inflorescences and flower again, about 2 months later, until the right season for fruit set is matched. In order to achieve larger fruits sizes, it is good to remove by hand 1/3 of the fruits from the bunch. Gomera-1 fruits outdoors in coastal Mediterranean climates and it needs little or no protection in coastal Portugal, Spain, Italy and Greece and also in the French Riviera.

Use as Root Stock for Grafting

Mango Gomera is regularly used as a rootstock for grafting throughout the Canary Islands and also in Andalusia. The use of the Canarian Hardy Mango as a rootstock permitted to push the commercial production of Mango in the Mediterranean basin, because the roots are hardier to cold and wet soil. All the different varieties of mango trees that we offer for sale are grafted on Gomera-1 rootstocks, so our customers in Europe will get the benefit of some added cold resistance from the roots.

Gomera mango trees used as a rootstock to graft different varieties

Gomera mango trees used as a rootstock to graft different varieties

Scientific Literature in Spanish about Mango Gomera

Mejora del Mango en Canarias

Gomera-1 en el programa de mejora del Mango

Buy cold hardy mango trees in our Shop

In our shop you can purchase small trees of Gomera mangos and also a wide selection of mango trees of different varieties. All trees are grafted by hand, with specific cultivars. We ship them directly to your home. Try also our delicious Mango jam with or without sugar, in the honeys & jams section, produced with the mangoes of the Canary Islands.

Video – Trachycarpus fortunei & Trachycarpus takil in Habitat

Canarius | Tuesday February 22nd, 2011 |

A lovely video with pictures by Alexander Nijman and Asian music, published in Youtube by Innes54. The title is:

Himalayan Windmill Palms in the Wild

Trachycarpus is a genus of cold-hardy palms native to Asia. The video shows them in habitat in the steepest hills of the world. The beautiful pictures show two species: Trachycarpus fortunei and Trachycarpus takil.

The description in youtube says:

“Himalayan Windmill palms grow in a disconnected grove across the Himalayan orogeny in a transect of the Ganges, Brahmaputra, Irrawaddy, Mekong and Chang rivers, on almost inaccessible slopes and ridges of four of the deepest, wildest canyons on earth. Some of the region remains unknown to the hands and feet of man. This is a rare look at some of these palms in the wild.

Music: Snow Wears Down the Mountain, scored for Indian and Chinese traditional instruments and string orchestra, based on two pentatonic scales. “

The shop at www.canarius.com offers more than 100 palm species, including these two trachycarpus species. Visit the PALM SECTION of our SHOP!

Trachycarpus takil vs m12

Aechmea triangularis survives to -6 C (21 F) and blooms

Canarius | Monday February 14th, 2011 |

Aechmea triangularis grows very well in mediterranean climate and warm temperate climates. It is an attractive bromeliad with golden-green leaves and brow-black spines. It produces a long lasting inflorescence in late spring, with red bracts and blue flowers. Before blooming, tips of leaves fold back forming a triangle, enhanced by dark red markings. Grow it in bright sun conditions, with little or no fertilizer, to achieve more compact and colurful plants.

Charlie Dill’s picture of Aechmea triangularis, blooming after a freeze

Aechmea triangularis can take low temperatures with little or no damage at -6 C (18 F) for several hours. About its cold tolerance, there is an interesting report written by Charlie Dill about different bromeliads surviving to -6 C (21 F) in California has texts and pictures of this species.

LINK TO CHARLIE DILL’S FROST DAMAGE REPORT OF AECHMEA TRIANGULARIS AND OTHER BROMELIADS

Charlie Dill’s picture of an unscathed Aechmea triangularis

Our Shop

Please visit the Bromeliad Section of our Shop and check back often, because we offerent different bromeliads at different times of the year. We ship bromeliads to anywhere in Europe. Our bromeliads are already growing in many European countries, such as Spain, Ireland, Italy, Poland, and Germany. All bromeliads in catalogue are sold as bare-rooted “pups”, which are the robust basal suckers produced after blooming. Our pups are very easy to root – some will already show some roots when you open the box.

Aechmea triangularis with dark leaf tips before blooming

Aechmea triangularis with dark leaf tips before blooming

A Palm from Tenerife growing outdoors in the UK for 16 years

Canarius | Tuesday January 18th, 2011 |

This video by HTUKDave shows the life History of a Washingtonia Palm,  from seed collection in 1992 to November 2009: 16 years.

Seeds came from the Canary Islands. They were collected by a hotel in South Tenerife in 1992. This Washingtonia robusta palm has grown in Chalk, Kent for 16 years, and survived various snowstorms and even a blizzard in Feb 2009. Although badly damaged the palmtree has recovered fully over the following summer.

Not all palms are tropical plants. Many palm species can resist snow and frost. Come and visit our shop at www.canarius.com . We offer above 100 palm species and will ship to your home.

A shop for Cycas and Cycad plants in Europe. Some good reasons to choose Canarius.

Cycas sp silver leaf Canarius | Friday January 7th, 2011 |
  1. Cycas sp silver leafWe offer the largest selection in Europe of the genus Cycas. Even more species will be added in the next months and years. You can buy them in the Cycad Shop, at www.canarius.com.
  2. All our plants are at least 2,5 years old. We ship no seeds, no two-leaf seedlings, no bare-root plants. Our cycads are solidly rooted in the pot. Many of them have coralloid roots: a good sign of health and age.
  3. We sprout our seeds. We do not import and re-sell cycads. Our plants have no stress from a past importation from a remote county with a different climate. They are ethically correct and suppose no environmental damage.
  4. We use no greenhouse, except for seed sprouting. Our cycads are robust plants grown outdoors, with mere summer shading. They have shorter, stiffer leaves with better caudexes.
  5. We are not in a tropical climate. The Canary Islands have a mediterranean climate with a bit warmer temperatures. Plants will stop in winter. They grow in the right way thanks to this rest.
  6. Our plants are all LEGAL. All species are protected by CITES regulations. All our plants have been started from seeds with official papers. If you are not in the European Union, we will prepare a special CITES Export Document when we ship these plants.
  7. We ship to anywhere in the world. We ship our plants worldwide, with all the necessary documents: CLICK HERE, and read about our worldwide shipping.

How is the exact look of the plants we offer?

Click HERE and you will see pictures of many of our plants just before packing.

How do we wrap and pack the plants?

See some pictures of our packing system.

Read more and see HOW WE PACK and WHAT WE PACK.

Dioon Holmgreenii

Dioon holmgreenii

Click HERE if you want to know about shipping costs.

Growing Acerola Fruits in Cold Climates

Canarius | Tuesday November 30th, 2010 |

Acerola is a cherry like fruit native to tropical America. The fruit is extremely high in vitamine C. It grows from a small tree  which is also ornamental. The scientific name is Malpighia glabra. It is usually grown in tropical and subtropical countries but it can be tried further North.

Can Malpighia glabra grow out of the tropics?

  • Acerola is hardy to-2 C (28 F). It grows and fruits outdoors in coastal Mediterranean climates. Malpighia glabra needs no protection in warmer Southern Portugal, Spain, Italy and Greece and also in the French Riviera.

    Fruit of Acerola

    Fruit of Acerola

  • Malpighia glabra has a fast fruiting cycle. It goes from flower to fruit in just 3-4 weeks.  Acerola does not need a long summer. One or two crops of acerolas can be expected in northern latitudes.

    Flower of Malpighia glabra

    Flower of Malpighia glabra

  • Malpighia glabra grows well in pots. It can be kept as a small shrub and it will still fruit freely.  In colder areas, potted plants can be moved to a warmer site in winter, and can be placed in full sun during the warmer months.

    These are the plants of Acerola that we sell at www.canarius.com

    These are the plants of Acerola that we sell at www.canarius.com

  • Acerola stands drought and can do a winter rest. Potted shrubs can be kept on the dry side during the winter months. It will drop some leaves and will come back with leaves and new flowers when warmth and water are provided.

Hardy Bromeliads for Outdoor Conditions

Canarius | Tuesday October 19th, 2010 |

Bromeliads, or Bromeliaceae, are highly appreciated plants because of their incredible colours and inflorescences, and their ease of growth in pots.

  • Garden Centers througout the world sell floppy-leaved hybrids with green leaves.
  • Canarius on the internet offers tough-leaved species with colourful leaves, grown in the Canary Islands.

Neoregelia chlorosticta blooming with yellow and red leaves

Floppy leaved, green bromeliads

  • Taxonomy: These plants often belong to the genera Guzmania and Vriesea
  • Conditions: They come from humid forest environments. They grow well in low light, sheltered conditions. They are sensitive to wind, drought, sunlight and temperature shocks. They are good for the terrarium.
  • Where: in the greenhouse, terrarium, sheltered patio.

Tough-leaved, colourful bromeliads

  • Taxonomy: Most of them belong to the genera Aechmea, Billbergia and Neoregelia.
  • Conditions: They grow well in non-tropical climates. They like temperature changes and can better stand outdoors conditions in general. They seldom burn in the hottest sun, they stand wind very well. Many of the tough-leaved Bromeliaceae are resistant to occasional frosts, without any damage. They will always tolerate drought for days or even weeks. Most of our species will thrive outdoors in mediterranean climates, with minimal protection.
  • Where: In the garden, sunny patio, balcony or terrace, being Subtropical and Mediterranean to Warm Temperate. They can be kept in your home during the colder months.

Aechmea lueddemanniana is a stiff-leaved bromeliaceae with long lasting flowes and fruits.

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Our Shop

Please visit the Bromeliad Section of our Shop and check back often, because we offerent different bromeliads at different times of the year. We ship bromeliads to anywhere in Europe. Our bromeliads are already growing in many European countries, such as Spain, Ireland, Italy, Poland, and Germany. All bromeliads in catalogue are sold as bare-rooted “pups”, which are the robust basal suckers produced after blooming. Our pups are very easy to root – some will already show some roots when you open the box.

Aechmea triangularis with dark leaf tips before blooming

All bromeliads in catalogue are sold as bare-rooted “pups”, which are the robust basal suckers produced after blooming. Our pups are very easy to root – some will already show some roots when you open the box.

Bromeliad Shop – From the Canary Islands to your home

Canarius | Friday June 11th, 2010 |

Bromeliads, or Bromeliaceae, are highly appreciated plants because of their incredible colours and inflorescences, and their ease of growth in pots. Canarius.com  offers on the internet tough-leaved species with colourful leaves, grown in the Canary Islands. Our bromeliad nursery was expanded in 2012 so our offer is continuously growing with new products. We ship worldwide !

Neoregelia chlorosticta

Neoregelia chlorosticta is a colourful bromeliad


Our Selection of Bromeliads

Billbergia elegans

Delicate flowers of Billbergia

Our shop offers a fine selection of tough-leaved bromeliads that are never available through garden centres.

Most of them belong to the genera Aechmea, Billbergia and Neoregelia. In the Bromeliad Section of our Shop you can buy the most unusual bromeliads with the thickest and most colourful leaves, better adapted to hot and cold conditions of outdoor life. We also offer a selection of “classic” hybrids that have succeeded throughout the years.  Our species grow well in non-tropical climates. Here they are grown outdoors because they like temperature changes and stand outdoors conditions in general. Our bromeliads will better tolerate:

  • Hot direct sun
  • Wind
  • Occasional frosts
  • Drought for weeks

Different light intensities will give plants with different growth and different colours. We grow our plants outdoors, with little or no shade, in order to achieve robust growth and bright colours.

We ship bare rooted plants and “pups”

Aechmea nudicaulis - Bare-root pups

Bare-root pups of Aechmea nudicaulis, ready to be packed.

All bromeliads in catalogue are sold as large pups, which are the robust basal suckers produced after blooming. This type of cutting is the safest way to reproduce bromeliads, because all pups are identical to the mother plant with no unwanted crossings. Futhermore, pups are much stronger than seedlings.

We pre-root the pups for weeks so most of our “pups” will already show some roots when you open the box. Most of these plants are more than pups will reach flowering size in about one year.

In some cases, especially for larger species, pups will be collected shortly after you place the order. They will show few or no roots. Bromeliads can resist for weeks and months without any root because they rely on the water they keep in the leaves. They will quickly set new roots when put in a draining soil at warm temperatures.

Aechmea pectinata pups

Aechmea pectinata pups produced in the Canary Island

  • Large species give large pups: We select and ship to your home cuttings of 35-50 cm for large species such as  Aechmea blanchetiana, A. callichroma and Neoregelia joannis. Their weight is 300-600 grams. Pups of large species will often lack roots. The largest species are can take 2 – 3 years to reach maturity.
  • Small species give small pups. Plants like Neoregelia maculata, Aechmea gamosepala and Billbergia elegans can measure 18-30 cm and weight just 150-250 grams. Pups of small species will often have roots. They will probably bloom in one year or less.

If you want to see more pictures of the plants we sell, then visit THIS LINK and see our plants on the packing desk and learn more about what we ship.

Neoregelia burlemarxii

Neoregelia burlemarxii becomes purple during the blooming months

Our Shop

Please visit the Bromeliad Section of our Shop and check back often, because we offer different bromeliads at different times of the year. We ship plants to anywhere in Europe and soon to the rest of the world. Our bromeliads are already growing in most European countries. In 2013 we start shipping worldwide our products !

Aechmea blanchetiana grows

Aechmea blanchetiana grows in full sun and takes light frosts

BACK TO THE BROMELIAD SHOP

In the garden, sunny patio, balcony or terrace, being Subtropical and Mediterranean to Warm

Cold-Resistant Palms for Europe

Canarius | Tuesday January 5th, 2010 |

Some palms can take frost and snow. Some grow very well in central Europe. The palm family includes about 2.400 species, mostly distributed in tropical and subtropical regions. Most species need warm temperatures but few exceptions occur in the cooler areas of the globe, at higher altitudes or higher latitudes. Hardy palms come from Chile, New Zealand, Morocco, Northern Mexico or China.

Copernicia alba from Argentina is moderately hardy, to about - 8 C

Copernicia alba from Argentina is moderately hardy, to about – 8 C

Most hardy palms bear palmate (fan-shaped) leaves. Fewer have pinnate leaves, and the hardiest are Jubaea and Butia. Most are solitary (single trunked) palms, some are clumping. Collectors will love the frost-hardy genus Butia with about 14 species, and Trachycarpus with nine species and a number of forms and varieties.If you are in a cold area, you might be restricted to use less than ten palm species. Just learn all you can about them and use them well in your landscape. After all, the average tropical garden has less than ten palm species! Plant palms in groups, in lines, in large pots, on the slope, by the pond. Just chose your palm species and enjoy the tropical effect in your garden.Hardiness is given for adult palms. Young plants are often less resistant to cold. If you are purchasing young palms, give them some protection in winter during a few years. Grow well your palms. In northern climates most palms will benefit of exposure to full sun and protection from northerly winds. Check our tips to grow Tropical plants in Cold Europe.

Canarius offers many species able to resist snow and frost.Come and visit the Palm Section of our Shop. We ship to anywhere in Europe.

Some cold-hardy species, according to hardiness:

-18 to -21 C (-0.5 to -6 F):

The hardiest of all palms are two North American species. Rhapidophyllum hystrix and Sabal minor. They are both small fan-leaved palms that can fit in any garden. Rhapidophyllum has long black needles, Sabal minor has a short underground stem. They can be tried virtually anywhere in Europe, as they have been grown successfully from Greece to Scandinavia. Rhapidophyllum can be too slow if summers are not warm enough.

A leaf of the fully hardy Sabal minor. This palm can take about - 21 C.

A leaf of the fully hardy Sabal minor. This palm can take about – 21 C.

-12 C to -18 C (-10.5 to -0.5 F):

Jubea chilensis is the most majestic of all hardy palms. It is all about size, because Jubea has the largest trunk of all palms. It is a pinnate (feather-leaved) palm native to high elevations in Chile. Palm collectors in the tropics dream of having one Jubaea, but it needs some cold to thrive. Fruits are edible nuts and taste much like coconut.Various Trachycarpus species, can take hard frosts, such as T. fortunei, T. nanus, T. takil, T. princeps, T. wagnerianus. Different plants in the N American genus Sabal are hardy, like S. uresana and Sabal x texensis, which the natural cross between Sabal minor and Sabal palmetto. Some more species resist to only – 14 C (6.8 F): Trachycarpus oreophilus and T. geminisectus and the beautiful Trithrinax campestris from Argentina, with silvery stiff, thick, leaves. Nannorrhops can take hard frosts if it is well drained.

Juvenile Trithrinax campestris with silvery leaves

Trithrinax campestris is hardy to about -15 C

Juvenile Trithrinax campestris with silvery leaves

Juvenile Trithrinax campestris with silvery leaves

-9 to -12 C (-15.5 to -10.5 F):

More and more species can be grown where temperatures do not fall too hard. Braheas are blue leaved desert fan palms from Mexico. The most popular are the stately Brahea armata and the low, trunkless B. decumbens. Another desert palm from the Middle East is Nannorrhops ritchiana. Canarius offers different forms originating in different countries. Some forms show incredible grey-white leaves.The exciting genus Butia, has elegant, arching pinnate leaves. About 14 species can take hard frosts, some of the most desirable are Butia eriospatha, B. capitata, B. odorata, B. paraguayensis, B. purpurascens, B. yatay. Some butias bear delicious sweet fruits, juicy and aromatic.Few rainforest palms tolerate hard frosts. Some Mexican Chamaedorea species are hardy, such as Chamaedorea microspadix and Chamaedorea radicalis. Their fine foliage adds a delicate touch to any garden, patio or conservatory. A strong, hardy palm is the Mediterranean fan palm, Chamaerops humilis. It is a clumping fan palm native to SW Europe and Morocco. The moroccan form is known as Chamaerops humilis cerifera. It has beautiful waxy-blue foliage and it is very hardy as it comes from the higher Atlas Mountains. More species of Trachycarpus can be planted outdoors if temperatures never go below 12 C : T. latisectus, T. martianus, T. oreophilus and T. princeps.The genus Phoenix includes the famous date palm, Phoenix dactylifera and the Canary Island palm, Phoenix canariensis. They do take frost, like some other members of the genus: P. loureiroi, P. humilis, P. sylvestris, P. theoprastii. More and more Sabal species can be grown if frosts are not too hard. The following species can take about – 10 C: Sabal domingensis, S. etonia, S. maritima, S. mexicana, S. palmetto, S. rosei. Hardy palms from North America are the dwarf Serenoa repens and the tall, stately whashingtonias, with two species: Washingtonia filifera and W. robusta. A different fan palm is Trithrinax brasiliensis, with large, round, flat fan leaves and beautiful, tropical-looking, yellow flowers.

Frost hardy Chamaerops humilis cerifera from the mountains of Morocco

Frost hardy Chamaerops humilis cerifera from the mountains of Morocco

-2 to -9 C (-28.5 to -15.5 F):

Lots of new genera and species can be tried in milder areas: Arenga engleri and A. micrantha resist to about – 7 C. Different species of Livistona, Parajubaea, Syagrus, Acrocomia aculeata, Copernicia alba. If it really never goes below -4 C, Rhopalostylis from New Zealand, some Caryota species from Asia the wax palms from the Andes, Ceroxylon, such as C. andinum and C. amazonicum, a number of Chamaedorea species, some of the high-elevation Dypsis from Madagascar, the showy, large, grey leaved Bismarckia nobilis, or the fabulous red-leaf palm, Chambeyronia macrocarpa.

Arenga engleri can take frost at - 9 C

Arenga engleri can take frost at – 9 C

Never below -2 C (never below -28.5 F):

The list is just too long. 200 or more palm species can be grown outdoors in lucky climates. If you are in located in the coastal Mediterranean, many of the palms offered by Canarius will grow for you.

You can buy all these palms and many more in the Palm Section of our Shop – We ship to anywhere in Europe.

This is our Parajubaea torallyi torallyi in a 12x14 cm pot

This is our Parajubaea torallyi torallyi in a 12×14 cm pot

Our Trachycarpus takil in a 12 cm pot, ready to be shipped

Our Trachycarpus takil in a 12 cm pot, ready to be shipped