5/6/16: In the garden this week

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As soon as the sun comes out, native columbine (acquilegia canadensis) will leap into bloom, and hummingbirds will appear. This plant does best in poor, dry soil.

In the spring, I can either work or blog, and usually I choose to work! And all the rain we’ve been having is great for planting, and the cool, cloudy weather is wonderful root growth. I’ve been trying to plant ahead of every predicted rainy spell. Finally, a week with enough precipitation for newly installed plants!

Because the weather turned cool, the arrival of spring finally slowed down, and we’re right back on schedule. The catbirds arrived this week, almost the same date as the past couple of years. Flowing dogwood and lilacs are in bloom, birds are extremely active, spring ephemerals will bloom as soon as the sun comes out. The last trees to leaf out, ashes and hackberry, are swelling their leaf buds.

This is the busiest time of year in the garden–the height of planting season. It’s easiest to establish new plants while the soil is still cool, so get your new plants in the ground as soon as you can. Consider a native tree or large shrub for a Mother’s Day gift. In my garden, last year’s lovely red chokeberry is in bloom right now.

In addition to buying Mom a present and taking her out for brunch, here are some things you could be doing in your garden this week:

divide hardy perennials and grasses. Many of the toughest native plants–many grasses, asters, rudbeckias, boltonia, columbine, to name just a few–have been in active growth for weeks. I start dividing as soon as each species is ready, and I try to do it right before it rains (saves watering). I’ve been at it for about a month and have enlarged several beds to receive the divisions. And as usual, I’ve given lots of plants away to friends, clients, and local parks and natural areas.

Harvest cool-weather crops such as lettuce, mesclun mix, spinach, arugula and peas. Plant parsley and dill plants, but hold off on basil for another couple of weeks.

— you should have started vegetable seeds for warm-weather crops such as tomatoes and squash a while ago. (You can find a list of dates for starting seeds in this post.) Hold off on putting these tender crops in the ground for another couple of weeks–until at least May 20.

Weed! Dig up wild garlic and dandelions. Pull garlic mustard if it hasn’t yet set seed. This noxious weed is particularly easy to remove–grab the base of the plant, and unless the soil is compacted, you’ll get the whole root system in one firm tug. Once it’s gone to seed, it’s too late to remove it. Mustards go to seed particularly early, so it’s a good idea to pull them as soon as you recognize them. And they’re easy to pull.

Plant! The weather is perfect. Most reliable mail-order nurseries have started shipping. Once the plants arrive, get them in the ground as soon as you can. If you must hold them for a few days, open the boxes, water as necessary, and keep them in the shadiest spot you can find.

— if you or your lawn service has sown grass seed, water several times a day until the grass is up. Otherwise you’re just scattering birdseed. Otherwise, the lawn certainly doesn’t need watering. And it’s much too early to fertilize. Wait until Memorial Day. Even better, don’t fertilize at all this year. I bet the grass will do just fine.

Happy Mother’s Day! enjoy the garden this week!

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Black chokeberry (Aronia melanocarpa) is in full bloom now. Red chokeberry (A. arbutifolia) has prettier fruit, but black chokeberry has larger flowers and its larger fruit are more attractive to birds.

 

 

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