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Cannas ~ Canna x generalis Plant Care Guide

Canna-Flower-HD-Wallpaper

How to videos in comments till wordpress allows me to publish videos in posts

Canna (or canna lily, although not a true lily) is a genus of nineteen species of flowering plants.[2][3][4] The closest living relations to cannas are the other plant families of the order Zingiberales, that is the Zingiberaceae (gingers), Musaceae (bananas), Marantaceae, Heliconiaceae, Strelitziaceae, etc.[5]

Canna is the only genus in the family Cannaceae. The APG II system of 2003 (unchanged from the APG system, 1998) also recognizes the family, and assigns it to the order Zingiberales in the clade commelinids, in the monocots.

The species have large, attractive foliage and horticulturists have turned it into a large-flowered and bright garden plant. In addition, it is one of the world’s richest starch sources, and is an agricultural plant.[5]

Although a plant of the tropics, most cultivars have been developed in temperate climates and are easy to grow in most countries of the world as long as they can enjoy at least 6–8 hours average sunlight during the summer, and are moved to a warm location for the winter. See the Canna cultivar gallery for photographs of Canna cultivars.

The name Canna originates from the Celtic word for a cane or reed.[6][7]

Species and Cultivars Here

Canna_Flower_At_RHS_Wisley_Garden_Surrey_UK

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Cannas @ Old farmer’s

Botanical name: Canna x generalis

Plant type: Flower

USDA Hardiness Zones: 8, 9, 10, 11

Sun exposure: Full Sun

Soil type: Any, Sandy, Loamy, Clay

Flower color: Red, Pink, Orange, Yellow, White

Bloom time: Summer, Fall

Cannas are among the most colorful summer bulbs—as flamboyant as their tropical American ancestry—with ruffled spikes tapering to refined buds.

These perennials come in a vast variety of color and boast immense, often-veined, paddle-shaped leaves and sheathing leafstalks in shades of green or bronze.

With their great reedy canes and palmy foliage, cannas would be magnificent even if they never bloomed. However, they keep blossoming from late spring or early summer to frost.

Turn-of-the-century gardeners so loved cannas that they grew them from seed but this isn’t easy; better to leave propagation to experts and buy the tubers.

Planting

  • Exotic, tropical creatures, cannas need lots of sunshine and fertile, moist soil but you don’t have to pamper them.
  • Cannas can be started in the house in small pots if your gardening season is short.
  • Where not hardy, plant outdoors in early summer—around the same time you’d put in tomato plants.
  • To plant, loosen the soil to a depth of 12 to 15 inches, then mix in a 2- to 4-inch layer of compost.
  • Dig a hole 2 to 3 inches deep and set the rhizome in the hole, eyes up.
  • Cover with soil and tamp firmly. Water thoroughly.
  • Space rhizomes 1 to 4 feet apart.
  • If you grow from seed, note that the germination rate is low and the seeds need to be filed or given an acid bath to break down their hard coat.

Care

  • Cannas do best with a good supply of water, so water the plants during the summer if the rainfall is less than 1 inch per week. Water freely in a dry spell.
  • Keep a thin layer of mulch around cannas to help retain moisture as well.
  • Stake tall varieties if needed.
  • As flowers fade, deadhead to promote continued flowering.
  • After autumn frost blackens the foliage, remove the stems and leaves, and lift the rhizomes for winter storage. Store in barely-moist peat or leaf mold in frost-free conditions. Space rhizomes so that they are not touching.
  • In the lower South, let cannas grow without moving them, until the clumps grow very matted. Every 3 to 4 years in the winter, dig up the clumps, separate the roots, and plant them in well-enriched soil.

Pests

  • Slugs, snails, spider mites, and caterpillars may be problems.
  • Rust, fungal leaf spot, and bacterial blight are common.
  • Bean yellow mosaic and tomato spotted wilt viruses can occur.

Harvest/Storage

  • Store cannas over the winter in a dry place at 45 to 50 degrees F. Don’t let them dry out; sprinkle the sand or soil around them, if necessary.
  • In the spring, cut the tubers apart with a sharp knife so that each piece contains one eye on a substantial piece of rootstock.

Recommended Varieties

  • Dwarf cannas stay under 3 feet tall and are easy to fit into our downsized modern gardens. The 2-1/2-foot-tall ‘Picasso’ is a yellow-flowered dwarf peppered with freckles.
  • Standard varieties grow 4 to 6 feet tall and need a 20- to 24-inch circle for each hand-size rhizome. ‘The President’ is is red, ‘Yellow King Humbert’ spotless, ‘Rosamond Cole’ orange-edged gold, and ‘City of Portland’ salmon pink.
  • Many gardeners love the spectacular, drought-tolerant varieties that reach heights of over 6 feet. One gem is the rich, deep pink ‘Los Angeles’, which has a large floret and opens out so that you can see the face.
  • ‘Bengal Tiger’ is stunning even when it’s not blooming with green-and-yellow-striped, maroon-edged leaves and bright-orange flowers.

Wit & Wisdom

Flowers are words which even a babe may understand.
–Arthur Cleveland Coxe, American poet (1818-96)

cannasred

9 responses

  1. great i have no idea why wordpress won’t show videos, at least on my end here, i have done this post at least a dozen times

    July 23, 2013 at 3:33 pm

  2. hopefully i can correct this later and add videos to post as originally planned and posted

    July 23, 2013 at 3:35 pm

  3. Not sure I agree with you on the “need lots of moist soil” as most of the specimens that I have seen here in Northern Tas are out in the road verges being used as mass plantings and never get watered. Northern Tas has an extended dry period over summer where rain is almost a non-event. We only had 3 rain events over the last 4 months of summer. It might be something to do with us having lots of clay here in Tassie though. Whatever they need, they appear to be hardy enough to cope with the conditions here on Serendipity Farm and nothing appears to eat them so I will be finding a source (free of course 😉 ) ASAP to plant out 🙂

    July 23, 2013 at 5:31 pm

    • thank you again, good to know 🙂

      July 23, 2013 at 5:37 pm

    • Narf77, THESE BEAUTIES ARE VERY VERY HARDY I KNOW, I HAVE THEM IN THE WESTERN SIDE FENCE IN THE BACK YARD, THE COLOUR FROM SECOND BOTTOM PICTURE (Yellow with red spots ) . I must admit that in the summer, they need a drink once a month tho at least, just to keep the trunk up …I dig lots of them every year out and take them to the green recycling council tip together with other green cuthings , as they multiply too fast….Some red varieties grows up to 2 M tall….CHEAP FENCE for hoby farmers like you ? 😀

      July 24, 2013 at 3:26 am

      • Yup…and when mixed with canna lilies, agapanthus, arums, stink lilies (we have lots of the smelly buggers) and Jerusalem artichokes I am going to end up with a wonderful riot of colour, ground covers to keep the moisture in (might not have to water if I do 😉 ) and edibles mixed in with pollinators…BONUS! 🙂 Maybe the canna’s don’t need extra H2O here because Tassie isn’t as hot as the mainland? (yet…)

        July 24, 2013 at 5:47 am

  4. Laughing here…Talk about Jerusalem artichokes ??…I just started to harvest my crops …I can send you few foam boxes 😀 ..I know, quarantine for Tassie

    July 24, 2013 at 12:13 pm

  5. Pingback: All About the Canna Bloom Cycle | small house/BIG GARDEN

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