Tag Archive | bulbs

Bulb Farmers Rock!

OCMGA Master Gardener David Calle is passionate about gardens — especially historic gardens and finding a way to incorporate lessons from the past into our own gardens.

From David’s blog explaining the passion behind his blog:  “I created this blog to share my love of gardens and the stories and people behind them.  My passion for historic gardens has taken me to dozens of gardens across 5 continents.  I hope you will join me on this journey and share your comments and experiences.”

I’m crazy about his stories and one of his recent ones “Bulb Farmers Rock” really captured my fancy because, on my bucket list, is a trip to Keukenhof when the bulb fields are all in bloom.

Take a minute to enjoy David’s blog post, and subscribe so you won’t miss future blogs!

http://www.thegoodgarden.com/new-blog/tulips-garden-history-bulb-farmers

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Tender Bulbs from the Tropics

The plants known as summer bulbs are like spring bulbs in that they use a wide assortment of true bulbs, corms, rhizomes, and tubers for energy storage. But unlike spring bulbs, they are not frost hardy. Gardeners in temperate zones must plant them each spring and — if they don’t want to keep buying new ones — must also dig them up in fall and store them over the winter.

Glorious bed of gladioli

Although this didn’t bother the Victorians, who were big summer-bulb fans, over time these tender beauties gradually fell out of fashion. Fortunately, fashion is ever changing, and summer bulbs are again a hot item, with new introductions constantly entering the market.

The big four — which never really went away — are cannas, dahlias, gladiolus, and tuberous begonias, but they are just the start of a list that also includes acidanthera, sometimes called the peacock orchid (Gladiolus callianthus), which has tubular white flowers with a deep purple throat; the Mexican shell flower or tiger flower

Agapanthus

(Tigridia pavonia), whose iris-shaped, spotted flowers come in many

bright hues; the Peruvian daffodil or ismene (Hymenocallis narcissiflora), which has fragrant white or yellow daffodil-like blooms; and agapanthus, which has lush clusters of narrow leaves and starry clumps of blue or white flowers.

Want more? How about the bright yellow, orange, and orange-red wands of Crocosmia x crocosmiiflora and its several close relatives; the tall, fragrant, white-flowered Galtonia candicans, sometimes called summer hyacinth; and perhaps most fragrant of all, the tuberose (Polianthes tuberosa).

All these and more are easy to plant, easy to love, and readily available, but to be sure of the widest selection, consult specialty catalogs as well as your local garden center.

by OCMGA Master Gardener Vicki Schilleman

Storing Tender Bulbs/Corms

By Kathy McCarthy

Do you love plants that have tender bulbs but think it is too much trouble to store them over winter? Hang on folks. The results may be worth your efforts and this is a great way to increase your supply. The directions are for plants I have been successful in storing.

Remember to dig carefully. It is important to loosen the roots gently, digging a few inches away from the plant. You want to avoid cutting or breaking the fleshy structure. Diseases enter through cuts and bruises.

Gladiolus

A gladiolus ““bulb”” is really a corm, a swollen underground stem. A new corm forms on top of the old one. While this is taking place, small new cormels are produced from the base. Corms can be dug when the foliage begins to yellow or before a hard freeze. After carefully digging the corms, cut off the old leaves close to the corm. Leave the corms outside in the sun for a day or two and then spread out in a garage or similar place to cure, but not on a cement floor. This will prevent storage rot. After a few weeks of drying, clean them by removing the roots and outer sheath of corm. Remove and discard the old corm. Store the corms in a mesh bag and hang them out of the way in a cool well-ventilated area. I use a mesh onion bag and hang it in my basement. The small cormels can also be saved and planted the following year, but it will take a few years to produce blooming plants.

Cannas

Dig the rhizomes in fall before the first frost. Remove the old stalks and gently brush off soil. They can be washed with a garden hose. Let them dry for a few days before storing. I store my rhizomes in a box filled with vermiculite. However they can also be stored in peat moss. Another way to store cannas is to leave the soil on the rhizomes and pile the clumps in a box. Cover with plastic and store in the basement or other dark, cool, dry area. I put the box on top of another container to keep it off the cement floor. Rhizomes must not freeze during storage. The temperature should be between 50 and 60 degrees. Never store canna rhizomes in a mesh bag, as this will allow the bulbs to dry out.

Calla Lily

Bulbs should be lifted out of the soil in late fall, but before the first frost. The bulbs bruise, so handle them carefully. Remove the excess soil by either washing or carefully rubbing it off. Dry the bulbs away from direct sunlight or wind for several days. Put them in a paper bag and store them in your basement or other dark, dry location. Like cannas, the temperature should be between 50 and 60 degrees.

Label and Check

When storing, I label the containers carefully. You can use a permanent felt marking pen to write directly on the fleshy root. I find it helpful to attach a sheet of information regarding planting time, depth, etc. to the container.

During the storage season, I periodically check for damaged or rotting material. Any damaged material is removed and thrown away. You don’’t want one bad ““apple”” to spoil the whole bunch.

Once spring arrives, you will be glad you saved those tender bulbs. If you have more corms, rhizomes and bulbs than you can use, think of your fellow gardeners and give them away.

Summer Bulbs

Overwintering Summer Bulbs

by Diana Alfuth, horticulture educator for Pierce & St. Croix County UW-Extension

gladiolus_7-19-06

Tender summer gladiolus

Summer bulbs cannot make it through our cold Wisconsin winters. If you want to plant them again next year, tender bulbs must be dug and stored once the foliage begins to yellow or is killed by frost. Cut the foliage to about 2 inches, dig the bulbs with a spading fork and knock off most of the soil. Don’t wash canna, dahlia or caladium bulbs, but hose off others, if needed. Discard any bulbs with spots or sunken areas, which may indicate the presence of disease.

Once bulbs are dry, pack them with some peat moss, sawdust, perlite, vermiculite or sand, or put them in thick paper bags and place them in a cool, dry place for winter. A root cellar, unheated basement or extra refrigerator can be used to keep temperatures between 50 and 65ºF, or 35 to 55ºF for gladiolus. Don’t store bulbs with ripening fruit, such as apples. The fruit gives off ethylene gas, which can damage bulbs.

Check the bulbs periodically over the winter. If mold is present, spread the bulbs out to dry or otherwise reduce humidity. Separate the bulbs prior to planting next spring.

Planting Summer Bulbs

from The New York Times column ‘Garden Q&A’

Summer bulbs are tropical types that want summer conditions. They will start sprouting when the soil is still less than toasty, but if it is downright cold, they’ll sulk, and if they sulk in soil that is damp as well as cold, they’re likely to rot.

So people in short-season areas have two options: the first is simply to wait for warm weather and then wait for flowers; the other is to give plants like crocosmias, acidantheras, and dahlias a short head start indoors.

Since you don’t want to have to worry about providing greenhouse conditions, wait until it’s near the frost-free date, then plant your summer beauties in a free-draining seed-starting medium like Pro-Mix. Water well, then set the pots (or for small bulbs, plug flats) where they will be warm but not hot, 60º to 65ºF. Add water only as necessary to keep the soil barely moist, and do not fertilize.

It should take a couple of weeks before sprouts show above the soil and start needing light, by which time the weather should be warmer. Set the plots outside in a sheltered spot where they will get plenty of sun but be protected from cold winds, and be prepared to move them indoors if the temperature threatens to go below 55ºF. Once you’re sure the weather has settled in a warm direction, transplant into the garden.

Keep your Caladiums

Starr_071024-9740_Caladium_bicolorAre your caladiums so beautiful this year that you can’t face the thought of getting rid of them when the summer is over? Why not try to keep them until next summer?! They can be left in the garden into fall so that the leaves can continue working and the tuber can continue to grow larger. However, once frost is in the forecast, don’t wait — just dig, taking up the whole plants or only the tubers.

To winter over a caladium, put the tuber into storage immediately or pot up the whole plant and place it in a brightly lighted windowsill. By late January, the caladium is going to look tired and will need to rest before the tuber is repotted in the spring or planted in the garden after the soil has warmed up. Chop off the foliage, knock off the soil, and let the tuber dry at room temperature. Any condensation will encourage bacterial rot. Store the tuber in dry vermiculite or in a mesh bag (like an onion bag) in a dry place, ideally at 70º to 75ºF but never below 50º, making sure there is good air circulation. Remember: it needs to be stored dry!!

Caladium is an extraordinary foliage plant. Its leaves can be white with narrow green borders or combinations of white, green, and rosy pinks, in pale to outrageous patterns that approach a third grader’s first attempt at stained glass. Most caladiums are hybrids of Caladium bicolor or C. picturatum, native to the tropics of the Americas and the West Indies. Plants can be costly, but tubers are inexpensive so you can just say goodbye at frost time if you like.

Exotic Alliums

by Master Gardener Tammy Borden

The vase sat on my desk holding a few hosta leaves and only a single flower. But as coworkers passed by, each one couldn’’t help but comment. ““What is that? I’’ve never seen one of those before. It’’s gorgeous,”” one person exclaimed. Another stopped in their tracks. ““Is that a flower? It’’s huge! It looks like something from outer space!””

The single flower stood out on its own and didn’’t need an entire bouquet to make a statement. Why? The flower head measured nearly a foot wide and resembled a floral fireworks display.

It was an Allium. Not just any Allium, but a Christophii Star of Persia. As oohs and ahs continued, I heard someone say, ““Oh, I could never grow something that exotic. I can’’t grow anything.”” I asked if they had tulips or daffodils in their yard and they said, ““Yes, that’’s about the only thing I can grow because I don’’t have to do anything with those. They just come up every year on their own.”” ““Well then,”” I said. ““You have the qualifications for growing Alliums.”” When I began explaining that a package of five bulbs that produced the beautiful stems of starlike florets were purchased for under $10 from a local home improvement store and planted last fall, they found it hard to believe.

Not only are they beautiful in a bouquet, but they make a bold statement in the garden. When in full bloom, Alliums are always the first flowers to get noticed by guests who visit. Even after they have bloomed and their color fades, the dried flower heads still add interest and texture. It is nearly fall, yet I still have the dried heads of several varieties of Allium dotted throughout my landscape, even though some bloomed as early as May.

Like tulips, the strap-like foliage of Alliums pushes through the cold earth early in spring. Unlike tulips, however, deer and other critters will shy away! Most are hardy to zone 3 or 4, but check individual varieties to be sure. When planting Alliums in your garden, try to position them behind low growing plants or garden sculptures because the foliage fades quickly once the flowers bloom. Once the foliage has turned completely brown you can remove it, but allow green foliage to remain so it can provide nutrients for next year’’s bloom.

When planting Allium, follow the same routine you would with other spring flowering bulbs. In fall, select a site that will receive full to part sun. Dig your hole three times the dimension of the bulb. Note: bulbs can vary from as small as an acorn to as large as a baseball. The package should also give an indication of planting depth. Add some organic matter to the hole, and if you choose, you may also add some bulb fertilizer. Like other bulbs, Alliums don’’t like wet feet, so provide good drainage. Plant the bulb pointy side up, cover with dirt, water, and wait until spring!

Most Alliums will tower to three feet or more, so they add beautiful vertical interest to your garden. Plant in groups of 3 or more. With the larger varieties, a group of only three bulbs properly placed can stop traffic. The flower heads are actually made up of hundreds of tiny star-like flowers that when clustered together, form a stunning display. They are considered an ornamental onion, related to garlic and chives. There are nearly 400 hundred varieties of Allium to choose from, each with different flower forms, color, size and bloom time. Here are the top five favorites from my garden, which are readily available:

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Star of Persia

Allium christophii ‘‘Star of Persia’’

The huge wispy volleyball-sized flower heads stand atop 2’’ stems. Silvery purple flowers. Blooms in mid to late May.

Allium sphaerocephalon ‘‘Drumstick’’ Intensely deep purple 11⁄2”” compact flowers atop thin, sturdy 30”” stems. Blooms late June to early July. Inexpensive and makes a great display. Beautiful in bouquets.

Allium aflatunense ‘‘Purple Sensation’’

Deep rosy purple blooms the size of a softball. Sturdy 30-36”” stems. This is among the only Alliums I recommend dead-heading because of its tendency to reseed itself, producing hundreds of seedlings next spring that generally do not develop into viable plants. One of the earliest to bloom.

Allium ‘‘Globemaster’’

Large, densely packed florets form a silvery purple flower head 8-10”” across. Many consider this the best of all Alliums for its impressive display. Stands 30-36”” tall. Highly sought after and a little more expensive than those noted above, but worth a spot in your garden.

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Mount Everest

Allium ‘‘Mount Everest’’

White 4”” flowers top 3-4’’ stems and bloom in late May and early June. The white blooms contrast beautifully with other purple varieties.

Welcome Spring!

by Master Gardener Rich Fischer

We have had a cold and wet Spring, but finally the signs of Spring are upon us.  I say this because our magnolia tree is finally blooming, and quite nicely too.  The other little signs, beside the robins and redwing blackbirds and killdeer are the hyacinth and daffodils.   Just thought I’d share these Springtime blooming photos with my fellow GardenSnip bloggers.  The power of our collective Springtime thoughts might warm up our weather a little bit!