Flowering Crabapples

Malus Crabapple
The very cold nights we had last month, coupled with recent snowstorms, have badly damaged flower buds on crabapples and other popular spring bloomers.

Flowering crabapple trees, with single to double blooms of white, pink, or carmine, are a beautiful symbol of springtime. Varying widely in form, cultivars range from small upright trees 15 feet tall to umbrella-like specimens more than 30 feet across. Some form narrow columns; some are weeping. Many produce small, ornamental fruit that lasts all winter, in shades of yellow, orange, or red. The simple green leaves of some varieties may have a reddish cast, especially in the spring. ‘Indian Summer’ is an example having orange fall foliage. ‘Molten Lava’ has attractive yellow bark. With over 200 cultivars available, you can choose a tree that matches your site and provides four seasons of garden interest.

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Johnny Jump-ups

violas-johnny-jump-ups-dbg-2008jun26lah-446-21They’re jumping up all over the place— miniature flowers with elfin faces, surrounded by petals of yellow and purple. No wonder we call them Johnny Jump-ups! The petite plants, sporting elongated heart-shaped leaves, must have started growing as soon as the ground thawed, to be in bloom this early.

viola-johnny-jump-up-home-blackforestco-15jun07-lah-008These short-lived members of the violet family are not particular about soil, exposure, or water. However, for maximum bloom, grow them in full sun, and don’t let them get too thirsty. Skip the plant food, as too much fertility will encourage leaves at the expense of flowers. For a mid-summer repeat performance, trim back leggy plants. Prolific self-seeders, new plants quickly replace those that succumb to old age, and they will form a solid mat in a year or two.

Often used as edging plants, Johnny Jump-ups are perfect naturalized under trees or as a ground cover for spring-blooming bulbs. They also do well in containers.

(This article will appear in the Colorado Springs’ Gazette on 4/25/09; it is currently on their website.)

Easter Lilies: Now What?

If you received a lily for Easter this year, you might be wondering what to do with it once it stops blooming. In warmer parts of the country, you can plant the finished bulb outside. Without being forced to bloom for Easter, the white flowers will appear in July. You’ll be enjoying your “Easter” Lily for many years to come.

Unfortunately, in most of Colorado, winters are too severe for these lilies. Unlike other varieties, trumpet lilies are only hardy to USDA zone 6. So, unless you have a very protected spot in your garden, you’ll have to buy a different kind of lily for outdoor growing.

To get the most from your gift plant, keep your lily in a cool, bright spot, but not in direct sunlight. Remember to water enough to keep the soil constantly damp, but not soggy. Removing any foil wrapping from around the pot will help excess water drain away from the roots.

Growing Minor Bulbs

In my previous posting, I described a number of so-called “minor bulbs” that can have a major impact in the late winter garden. This time, I’ll focus on how to grow them.

Allium
Allium

You have to plan ahead to enjoy these little beauties. They all need to be planted in the fall, early enough so that they put out some root growth before the ground freezes. Most aren’t easy to find at local stores, and must be ordered from a catalog or online. I prefer to make my decisions on next year’s order while this year’s plants are in bloom.

Unlike the giant hybrids, these bulbs should increase year after year. Since they will be left undisturbed during that time, preparing the soil before planting is especially critical.

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Minor Bulbs, Major Impact

Iris hyb_HAS-ColoSpgs-CO_LAH_6429.nefNothing lifts our spirits like the first crocuses of spring. They are popping up all over town, like bright Easter eggs in our dreary gardens. After months of plants that are brown and lifeless, spring blooming bulbs are an almost magical treat.

Everyone is familiar with tulips and daffodils, and crocuses and hyacinths are recognizable as well, but the assortment of bulbs available to high altitude gardens extends past these familiar flowers. The following flowers are classified as “minor bulbs,” perhaps due to their diminutive size, but they can have a major impact when planted in large enough numbers.

Snowdrops (more…)