• Enter your email address to follow this blog and receive notifications of new posts by email.

  • March garden tips & tasks

    If your fescue lawn looks a little skimpy, overseed early this month. Fescue grows best when the weather is still cool.

    Clip dead stems from perennial herbs – thyme, sage, lavender, rosemary. Pruning encourages vigorous new growth.

    Prune nandinas, flowering quince and other airy shrubs by reaching in and removing about a third of the branches at ground level.

    Remove mulch or leaves that may be covering perennials in garden beds.

    Prepare a new garden bed: Have the soil tested (check with your county’s Extension service). Remove grass and dig or till soil 8 to 10 inches deep and mix with soil amendments and organic matter to improve drainage.

    Add fertilizer lightly to perennials as soon as you see new growth. Too much fertilizer may result in lanky growth.

    Herb transplants that don’t mind cool weather -- parsley, cilantro, sage, oregano – can go in the ground now.

    When you cut daffodils to bring inside, cut the stems at an angle and place them in water right away. Change the water in the vase daily to keep them fresh longer.

    Save the date - Middle Tennessee garden events

    The Perennial Plant Society's annual Plant Sale will be April 8, opening at 9 a.m. at The Fairgrounds Nashville. The sale offers newly released and hard-to-find perennials from top local nurseries -- more than 450 varieties of perennials, vines, grasses, shrubs and annuals. The event supports local scholarships for Tennessee horticulture students and monthly gardening programs, open to the public, at Cheekwood Botanical Gardens. For information visit www.ppsmtn.org.

    The Herb Society of Nashville's annual Herb Sale will be April 29, 9 a.m. - 2 p.m. at The Fairgrounds Nashville. The sale will offer heirloom vegetables, rare varieties of perennial and annual herbs, handmade pottery herb markers and more. To learn more, visit herbsocietynashville.org.

  • Categories

  • Archives

Cannas multiply, time to divide

Question: I planted cannas several years ago and they have multiplied. I’d like to move some of them to a different location. When is the best time to transplant them?

CannasIn the University of Tennessee Extension Master Gardener Handbook, cannas are listed among the “tender bulbs and bulblike plants” along with caladiums, dahlias and gladiolus. At one time, it was recommended that these tubers be dug up and stored to protect them from the cold, but most gardeners in Middle Tennessee (Zone 7a) now find that they make it through winter just fine, especially if they spend winter under a blanket of mulch.

If you want to move them, an opportunity for doing so is coming up. According to the handbook, cannas can be dug in the fall after the foliage has been killed by frost. Allow the tubers to dry for a couple of days, then store them in a cool location (50 degrees or so – a garage or basement, perhaps) where they won’t dry out completely. The Old Farmer’s Almanac suggests storing them in peat moss or wrapping them in newspaper, and sprinkling them with a bit of water every now and then during the winter. Next spring, plant the tubers in a sunny spot when the soil has warmed to 65 degrees.

You may also wait until spring to divide the tubers. Mark their location now, and in the spring, use a garden fork to dig carefully and lift the tubers from the ground. Separate them, cut off any rotten or diseased bits, and replant them. Cannas do best in a location where they receive full sun.

Advertisements

2 Responses

  1. Gloria, I have two questions. One, when is the best time to divide and replant Black-eyed Susans and Shasta Daisies, in the fall or spring.

    Two, when I made a contribution to the Arbor Foundation I received some baby flowering trees. I kept the Crapapple and gave the others away. The tree has grown and flourished, but has never produced blooms. Nothing was said about its needing an opposite sex tree in order to bloom. Can you tell me what the problem is and how to rectify it?

    Thanks so much, Linda

  2. Linda, both black eyed Susans and shasta daisies can be divided and replanted now. Prepare the new bed before you dig them up and divide them and replant them right away. Planting now gives the root systems a chance to get established before next spring.
    As for the flowering crabapple: How old is it? I read everywhere that sometimes it takes flowering crabs three or four years to begin to bloom. It also needs about six hours of full sun each day. Could either youth or shade be the problem?

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

%d bloggers like this: