Planting Season

Ed inspects the first delivery of annuals in mid May.

Ed inspects the first delivery of annuals in mid May.

May Day at tea time.

May Day at tea time.

We were wise to wait until after Mother’s Day to start planting annuals. Nights have remained cool. The soil was downright chilly. Soil temperatures regulate much of the activity above ground, and when they started to warm, our fair city greened in a hurry. It’s hard to believe that six short weeks ago, work was called on account of snow.

Although we have nearly finished planting annuals for the season, the carport and back patio are once again filling. This time it’s with perennials. We have projects ranging from converting an artificial turf putting green destroyed in the Waldo Canyon Fire to establishing groundcovers under a lofty canopy to planting up beds created in response to water shortages in an effort to reduce thirsty turf.

The old putting green about to receive its first plants.

The old putting green about to receive its first plants.

Planting season will continue through June, as long as daytime temperatures stay reasonably normal (no triple digits, please), and evenings cool. The one condition: Homeowners must take responsibility for regular hand watering to get plants established. To be within the rules of current water restrictions, any watering that takes place outside of your designated hours and days must be done with a drip system or by hose with a positive shut-off and on trees, shrubs, and beds only.

If too much heat comes into the forecast, we’ll take a break in planting. It really isn’t wise to ask plants to deal with getting situated in a new location during a hot spell. Too much stress. Don’t believe me? Try it yourself: Move to a house without air conditioning in, say, Houston in July. Doesn’t sound the least bit appealing, does it?

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Just a Little Bit Longer

Mid-February. Can you see it? The sun’s peeking over the horizon just a little bit earlier and dipping behind the Peak just a little bit later. Honestly. Days are noticeably longer.

Look close! Bulbs coming up in Robb's Westside "Sleeping Bear Oasis" - photo by himself.

Depending on each garden’s location, and the microclimates within each garden, crocus and other early bulbs might be poking their first green tips into daylight. A few choice spots may even have some crocus or snowdrops blooming. These first appearances are triggered more by soil temperature than day length. If you keep a record of your first crocus, over the years you’ll find the date shifts from early February to well into the first week of March.

Two major factors govern early activity in the garden: Day length and temperature. Soil temperature, at this stage of the season, has a larger influence than day length or daily highs and lows. Fortunately, soil warms and cools more slowly, moderating the effects spikes and dips in the air can have on plants. This helps assure they show above ground at the right time.

Seeing green tips, but feeling anxious about the inevitable cold spells yet to come? Not to worry! Leaves programmed to emerge in early spring have a hefty dose of sugary antifreeze.

Relax and enjoy.