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...because all the best garden advice is local

April 9, 2015
Dear (Contact First Name), 

      Veronica with dafodils  

Once again, I am grateful for the rich black soils and plentiful rainfalls in Iowa.I read about the tragic droughts in the West even as I sit inside and watch another April rain drench my garden. Granted, in the northern and eastern parts of Iowa, it's been "abnormally dry," according to the U.S. Drought Monitor.

   But much of the state is at normal precipitation. The lawns are green, the air is cool, the daffodils are starting to pop. I feel like I've been plunked down right in the middle of the most verdant Garden of Eden.

 

Yours in grateful gardening,

Veronica Lorson Fowler

 
Truly Cool Plants

 

The heroes of my garden right now are cool-season annuals. They thrive during cool, wet weather, like we're having right now. Unlike warm-season annuals, such as marigolds or impatiens, they can take a little frost and even a little snow.

   But once the weather regularly hits the 80s in late May or early June, cool-season annuals brown and fade. Then it's time to tear them out and replace with those warm-season annuals, which go strong until frost.

   Pansies are the best-known cool-season annual. But there are so many more that can cheer up your spring garden, such as the gorgeous annual lobelia shown here. Click here to learn more. 

Prevent Weeds Now


The bright yellow forsythia is blooming. If you choose to use chemicals on your garden, that means it's time to apply Preen or any other "pre-emergent" herbicide (weed killer that kills weeds before they germinate or "emerge"). It saves me many hours of weeding later in the season. I also like to get the kind that has a built-in fertilizer. 

   Don't put it any place you want to plant seeds in the next several months or it might prevent those from germinating, too! 

 

Save The Topsoil! 

 

One of my pet peeves is home builders scraping off nearly all of that beautiful Iowa soil off a new home construction site (that the homeowner paid for) and putting very little back. Some even sell the topsoil and pocket the profit.

   Current regulations in Iowa require that in most cases, at least 4 inches of existing topsoil be put back on the yard. Even that 4 inches, as every gardener knows, is barely enough to support lawns and isn't nearly enough for perennials and vegetables. It also contributes to water and lawn chemical run-off. 

   Now home builders are lobbying to have the rule changed so they have even more discretion on what to do with the topsoil, and can put even less back on yards.

   Click here to see a Des Moines Register article explaining the situation.

   I don't want to see even less topsoil put back onto new yards of Iowa home landscapes! State government has asked for input. So I've sent an email to the chair of the Iowa Environmental Protection Committee, asking her to keep the existing rule that ensures at least 4 inches of topsoil. I encourage you email her as well (by April 20, is possible) at Mary.Boote@dnr.iowa.gov.

Issue: 111

Monthly To-Do

 

Not sure what to plant when in your Iowa garden? Click here for a complete listing.

 

 Be careful about working the soil when it's too wet. It may stick together and then dry into hard clumps that will be difficult to break apart. 

 

 If you haven't already, rake away any leaves from around perennials. They're sending up fresh new growth that will be suffocated if covered. 

 

 Edge beds, walks, and drives as desired.

 

 Time to prune most large trees, small trees, evergreens, and shrubs. You can also prune roses as soon as they start to send out little red branch buds.

 

 Plant directly into the ground seeds of fast-germinating cool-season vegetables, such as radishes, spinaches, and lettuces.

 

 Plant bareroot trees, shrubs, and roses. Click here for a complete list of what to plant when this month and the rest of the year.

 

 Prevent diseases and insects on fruit trees by spraying with horticultural oil, also called dormant oil. Do so when there is little wind and temps are in the 40s. 

 

 The bright yellow forsythia is  blooming soon. That means its time to sprinkle any preemergent herbicide (kills weed seeds, such as Preen) on flower beds, if you choose to use it. It's also the time to apply a preemergent to your lawns. Or save time with a weed and feed combo!

 

 Stock up now on pots, potting soil, seeds and seed-starting supplies, tools, soil amendments, fertilizers, etc.

 

 How's your mower? If you didn't get it tuned up last fall and the blade sharpened, do it yourself now or take it in before the spring rush.

 

 Same for any shears or other sharp cutting or slicing objects, including spades and hoes. If you haven't already, invest in a sharpening stone. It makes all the difference. Click here to learn how.

 

 As your bulbs come up, make a record of where to plant new ones this fall. Take pictures or write it down or draw it on a piece of paper. Keep them someplace where you can reference them next fall--a garden journal perhaps?
 

Editor's Choice 
Garden Events  
 
May 7-10
Des Moines Botanical Gardens 
Enjoy this four-day pop-up festival with more than 500 limited edition varieties of plants for sale in five edgy, artistic showrooms plus educational sessions and activities. Tickets on sale how for an exclusive, opening night preview sale and cocktail party. Click here for details. 

Garden Quote  

 

I love these lines from Robert Frost about how April weather is touch and go. Very appropriate for this week!

 

"The sun was warm but the wind was chill.
You know how it is with an April day.
When the sun is out and the wind is still,
You're one month on in the middle of May.
But if you so much as dare to speak,
a cloud come over the sunlit arch,
And wind comes off a frozen peak,
And you're two months back in the middle of March."

-  Robert Frost, Two Tramps in Mud Time